A continuing periodic change in displacement with respect to a fixed reference. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
An occupational disorder resulting from prolonged exposure to vibration, affecting the fingers, hands, and forearms. It occurs in workers who regularly use vibrating tools such as jackhammers, power chain saws, riveters, etc. Symptoms include episodic finger blanching, NUMBNESS, tingling, and loss of nerve sensitivity.
An idiopathic vascular disorder characterized by bilateral Raynaud phenomenon, the abrupt onset of digital paleness or CYANOSIS in response to cold exposure or stress.
Four or five slender jointed digits in humans and primates, attached to each HAND.
The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Diseases caused by factors involved in one's employment.
Sensation of making physical contact with objects, animate or inanimate. Tactile stimuli are detected by MECHANORECEPTORS in the skin and mucous membranes.
A pair of cone-shaped elastic mucous membrane projecting from the laryngeal wall and forming a narrow slit between them. Each contains a thickened free edge (vocal ligament) extending from the THYROID CARTILAGE to the ARYTENOID CARTILAGE, and a VOCAL MUSCLE that shortens or relaxes the vocal cord to control sound production.
An increase in the rate of speed.
Rapidly adapting mechanoreceptors found in subcutaneous tissue beneath both hairy and glabrous skin. Pacinian corpuscles contain an afferent nerve fiber surrounded by a capsule with multiple concentric layers. They have large receptive fields and are most sensitive to high-frequency stimuli, such as vibration.
The TEMPERATURE at the outer surface of the body.
Skeletal muscle structures that function as the MECHANORECEPTORS responsible for the stretch or myotactic reflex (REFLEX, STRETCH). They are composed of a bundle of encapsulated SKELETAL MUSCLE FIBERS, i.e., the intrafusal fibers (nuclear bag 1 fibers, nuclear bag 2 fibers, and nuclear chain fibers) innervated by SENSORY NEURONS.
Sensory functions that transduce stimuli received by proprioceptive receptors in joints, tendons, muscles, and the INNER EAR into neural impulses to be transmitted to the CENTRAL NERVOUS SYSTEM. Proprioception provides sense of stationary positions and movements of one's body parts, and is important in maintaining KINESTHESIA and POSTURAL BALANCE.
The superior part of the upper extremity between the SHOULDER and the ELBOW.
The minimum amount of stimulus energy necessary to elicit a sensory response.
Motorized, recreational vehicles used on non-public roads. They include all-terrain vehicles, dirt-bikes, minibikes, motorbikes, trailbikes, and snowmobiles. Excludes MOTORCYCLES, which are considered public road vehicles.
The neck muscles consist of the platysma, splenius cervicis, sternocleidomastoid(eus), longus colli, the anterior, medius, and posterior scalenes, digastric(us), stylohyoid(eus), mylohyoid(eus), geniohyoid(eus), sternohyoid(eus), omohyoid(eus), sternothyroid(eus), and thyrohyoid(eus).
Reflex contraction of a muscle in response to stretching, which stimulates muscle proprioceptors.
A basement membrane in the cochlea that supports the hair cells of the ORGAN OF CORTI, consisting keratin-like fibrils. It stretches from the SPIRAL LAMINA to the basilar crest. The movement of fluid in the cochlea, induced by sound, causes displacement of the basilar membrane and subsequent stimulation of the attached hair cells which transform the mechanical signal into neural activity.
The process of producing vocal sounds by means of VOCAL CORDS vibrating in an expiratory blast of air.
The rear surface of an upright primate from the shoulders to the hip, or the dorsal surface of tetrapods.
Analysis of the intensity of Raman scattering of monochromatic light as a function of frequency of the scattered light.
The aggregate business enterprise of building.
Permanent roads having a line of rails fixed to ties and laid to gage, usually on a leveled or graded ballasted roadbed and providing a track for freight cars, passenger cars, and other rolling stock. Cars are designed to be drawn by locomotives or sometimes propelled by self-contained motors. (From Webster's 3d) The concept includes the organizational and administrative aspects of railroads as well.
Act of eliciting a response from a person or organism through physical contact.
General or unspecified injuries to the hand.
The position or attitude of the body.
General or unspecified injuries involving the fingers.
Subjective cutaneous sensations (e.g., cold, warmth, tingling, pressure, etc.) that are experienced spontaneously in the absence of stimulation.
The process in which specialized SENSORY RECEPTOR CELLS transduce peripheral stimuli (physical or chemical) into NERVE IMPULSES which are then transmitted to the various sensory centers in the CENTRAL NERVOUS SYSTEM.
AUTOMOBILES, trucks, buses, or similar engine-driven conveyances. (From Random House Unabridged Dictionary, 2d ed)
Devices designed to provide personal protection against injury to individuals exposed to hazards in industry, sports, aviation, or daily activities.
A type of non-ionizing radiation in which energy is transmitted through solid, liquid, or gas as compression waves. Sound (acoustic or sonic) radiation with frequencies above the audible range is classified as ultrasonic. Sound radiation below the audible range is classified as infrasonic.
Sense of movement of a part of the body, such as movement of fingers, elbows, knees, limbs, or weights.
The process by which the nature and meaning of tactile stimuli are recognized and interpreted by the brain, such as realizing the characteristics or name of an object being touched.
The properties, processes, and behavior of biological systems under the action of mechanical forces.
Coverings for the hands, usually with separations for the fingers, made of various materials, for protection against infections, toxic substances, extremes of hot and cold, radiations, water immersion, etc. The gloves may be worn by patients, care givers, housewives, laboratory and industrial workers, police, etc.
Cells specialized to transduce mechanical stimuli and relay that information centrally in the nervous system. Mechanoreceptor cells include the INNER EAR hair cells, which mediate hearing and balance, and the various somatosensory receptors, often with non-neural accessory structures.
A reflex in which the AFFERENT NEURONS synapse directly on the EFFERENT NEURONS, without any INTERCALATED NEURONS. (Lockard, Desk Reference for Neuroscience, 2nd ed.)
The practical application of physical, mechanical, and mathematical principles. (Stedman, 25th ed)
An oval semitransparent membrane separating the external EAR CANAL from the tympanic cavity (EAR, MIDDLE). It contains three layers: the skin of the external ear canal; the core of radially and circularly arranged collagen fibers; and the MUCOSA of the middle ear.
Spectrophotometry in the infrared region, usually for the purpose of chemical analysis through measurement of absorption spectra associated with rotational and vibrational energy levels of molecules. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Disorders of the special senses (i.e., VISION; HEARING; TASTE; and SMELL) or somatosensory system (i.e., afferent components of the PERIPHERAL NERVOUS SYSTEM).
General or unspecified injuries involving the arm.
Recording of the changes in electric potential of muscle by means of surface or needle electrodes.
The recording of wavelike motions or undulations. It is usually used on arteries to detect variations in blood pressure.
The branch of physics that deals with sound and sound waves. In medicine it is often applied in procedures in speech and hearing studies. With regard to the environment, it refers to the characteristics of a room, auditorium, theatre, building, etc. that determines the audibility or fidelity of sounds in it. (From Random House Unabridged Dictionary, 2d ed)
The science of developing, caring for, or cultivating forests.
Communication between animals involving the giving off by one individual of some chemical or physical signal, that, on being received by another, influences its behavior.
Diseases of the peripheral nerves external to the brain and spinal cord, which includes diseases of the nerve roots, ganglia, plexi, autonomic nerves, sensory nerves, and motor nerves.
One of the three ossicles of the middle ear. It transmits sound vibrations from the INCUS to the internal ear (Ear, Internal see LABYRINTH).

Traumatic vasospastic disease in chain-saw operators. (1/2344)

Raynaud's phenomenon is commonly induced in chain-saw operators by vibration; the hand guiding the tool is the more severely affected. The condition tends to persist after use of the chain-saw is stopped but compensation is rarely sought. Among 17 cases of Raynaud's phenomenon in lumberjacks the condition was found to be related to use of the chain-saw in 14, 10 of whom had to give up their work in colder weather because the disease was so disabling. Two criteria essential to establish the condition as vibration-induced Raynaud's phenomenon are the presence of symptoms for at least 2 years and a history of at least 1 year's constant use of the chain-saw. Careful physical examination and simple tests of vascular function will provide objective evidence of permanent damage by which the patients may be classified and compensated.  (+info)

Mechanical stimulation of starfish sperm flagella. (2/2344)

1. The responses of starfish sperm flagella to mechanical stimulation with a microneedle were analysed. Flagellar movement was recorded by high-speed microcinematography and by stroboscopic observation. 2. The amplitude of the bending wave of a flagellum was restricted over its entire length when the microneedle was brought near to the flagellum at its proximal region. Beyond the restricted part, the amplitude of the wave, and the bend angle, became smaller than those of a normally beating flagellum, while the curvature was practically unchanged. 3. When the tip of the microneedle was in contact with the flagellum, propagation of the bending wave beyond the microneedle was inhibited. The part of the flagellum between the base and the microneedle continued beating in some cases and stopped beating in other cases. The flagellum beyond the arrested part stopped beating and remained straight. When the microneedle was removed, the bending wave which existed in the part of the flagellum proximal to the microneedle, or the wave which was passively formed de novo at the time of the removal of the microneedle, propagated over the arrested part towards the tip. 4. A flagellum amputated by a microneedle in a medium containing ATP continued beating with a small amplitude, small curvature, small bend angle and low frequency. When the amputated flagellum was passively bent by a microneedle at the region near the point of amputation, this bend propagated towards the tip with a constant bend angle. 5. The beating frequency of the flagellum could be modulated by the application of a rhythmic external force generated by vibrating a microneedle near the flagellum. The beating was completely synchronized with vibration of the microneedle in the frequency range from 23 Hz to 43 Hz.  (+info)

The two-dimensional IR nonlinear spectroscopy of a cyclic penta-peptide in relation to its three-dimensional structure. (3/2344)

A form of two-dimensional (2D) vibrational spectroscopy, which uses two ultrafast IR laser pulses, is used to examine the structure of a cyclic penta-peptide in solution. Spectrally resolved cross peaks occur in the off-diagonal region of the 2D IR spectrum of the amide I region, analogous to those in 2D NMR spectroscopy. These cross peaks measure the coupling between the different amide groups in the structure. Their intensities and polarizations relate directly to the three-dimensional structure of the peptide. With the help of a model coupling Hamiltonian, supplemented by density functional calculations, the spectra of this penta-peptide can be regenerated from the known solution phase structure. This 2D-IR measurement, with an intrinsic time resolution of less than 1 ps, could be used in all time regimes of interest in biology.  (+info)

A pilot study on the human body vibration induced by low frequency noise. (4/2344)

To understand the basic characteristics of the human body vibration induced by low frequency noise and to use it to evaluate the effects on health, we designed a measuring method with a miniature accelerometer and carried out preliminary measurements. Vibration was measured on the chest and abdomen of 6 male subjects who were exposed to pure tones in the frequency range of 20 to 50 Hz, where the method we designed was proved to be sensitive enough to detect vibration on the body surface. The level and rate of increase with frequency of the vibration turned out to be higher on the chest than on the abdomen. This difference was considered to be due to the mechanical structure of the human body. It also turned out that the measured noise-induced vibration negatively correlated with the subject's BMI (Body Mass Index), which suggested that the health effects of low frequency noise depended not only on the mechanical structure but also on the physical constitution of the human body.  (+info)

Brief vibrotactile stimulation does not increase cortical oxygen consumption when measured by single inhalation of positron emitting oxygen. (5/2344)

Vibrotactile stimulation of the hand elicits no increase in oxygen consumption commensurate with the increase in blood flow measured in human sensory cortex. To test the hypothesis that previous failures to detect a proportionate increase in oxygen consumption could be an artefact of the sequential bolus, or three-step, method used to measure this parameter in the human brain in vivo, the authors compared the measurements with the results of a novel single bolus, or one-step, method of measuring oxygen consumption. The time of completion of the three-step method was 40 to 50 minutes, whereas the one-step method lasted only 3 minutes. The baseline whole-brain oxygen consumption averaged 185 +/- 32 micromol hg(-1) min(-1) by the three-step method and 153 +/- 15 micromol hg(-1) min(-1) by the one-step method. Vibrotactile stimulation did not elicit a significant increase in oxygen consumption measured by either method. This finding rejects the hypothesis that failure to detect an increase of oxygen consumption could be an artefact caused by limitations of the method used previously. Conversely, it also rejects the hypothesis that observations of an increase of oxygen consumption by the new method are artefacts caused by limitations of the one-step method.  (+info)

Oxygen consumption of cerebral cortex fails to increase during continued vibrotactile stimulation. (6/2344)

The coupling of oxidative metabolism to the blood flow of the sensory motor hand area is uncertain. The authors tested the hypothesis that continued vibrotactile stimulation ultimately must lead to increased oxygen consumption consumption. Twenty-two healthy right-handed young volunteers underwent positron emission tomography (PET) with the [(15)O]water bolus injection method to measure water clearance (K1H2O an index of blood flow (CBF), and with the [(15)O]oxygen bolus inhalation method to measure CMR(O2). The CMR(O2) was measured 30 seconds and 20 minutes after onset of intermittent (1 second on, 1 second off) vibrotactile stimulation (110 Hz) and compared with baseline measurements without stimulation. The K1H2O and CMR(O2) changes (delta K1H2O and delta CMR(O2)) were determined using intersubject averaging, together with magnetic resonance imaging based stereotaxic registration technique. The K1H2O increase was 21 +/- 4% and 12 +/- 4% at 30 seconds and 20 minutes after onset of stimulation, respectively. No significant increase of CMR(O2) was found until 30 minutes after the onset of stimulation. The authors conclude that blood flow and oxidative metabolism undergo uncoupling during sustained phasic stimulation of the sensory hand area. Therefore, neuronal activity stimulated in this manner does not rely on significantly increased oxidative phosphorylation.  (+info)

Inhalation exposure of animals. (7/2344)

Relative advantages and disadvantages and important design criteria for various exposure methods are presented. Five types of exposures are discussed: whole-body chambers, head-only exposures, nose or mouth-only methods, lung-only exposures, and partial-lung exposures. Design considerations covered include: air cleaning and conditioning; construction materials; losses of exposure materials; evenness of exposure; sampling biases; animal observation and care; noise and vibration control, safe exhausts, chamber loading, reliability, pressure fluctuations; neck seals, masks, animal restraint methods; and animal comfort. Ethical considerations in use of animals in inhalation experiments are also discussed.  (+info)

Possible sources of discrepancies in the use of the Semmes-Weinstein monofilament. Impact on prevalence of insensate foot and workload requirements. (8/2344)

OBJECTIVE: The purpose of this study was to evaluate the effects of different testing sites and buckling strengths on the sensitivity and specificity of using the Semmes-Weinstein monofilament to detect patients with insensate foot. The impact on workload required to educate and follow up these high-risk individuals was estimated by modeling in our patient population with a documented status of neuropathy. RESEARCH DESIGN AND METHODS: Using the 5.07/10-g monofilament, one observer tested 132 randomly selected subjects with diabetes at five sites on the right foot. The sensitivity and specificity of each site and combinations of sites in detecting vibration perception threshold > 40 was calculated. In addition, two monofilaments, one with a buckling force of 5 g and the other with a force of 15 g, were compared by testing 200 randomly selected patients. An estimate of the prevalence of insensate foot and workload was made by modeling the findings to the 5,270 patients with neuropathy status registered on our computerized database. RESULTS: Specificity of the 5.07/10-g monofilament to detect insensate foot at each of the five sites is high, at approximately 90%, but there is considerably more variation and lower sensitivity, ranging from 44-71%. Data derived from the use of different combinations of sites showed that more stringent criteria are associated with lower sensitivity but higher specificity. If the foot is considered insensate when either of sites 3 and 4 (plantar aspect of the first and fifth metatarsal heads, respectively) cannot feel the monofilament, there is reasonable sensitivity and specificity (80-86%, respectively). By modeling on our diabetes center population, it can be demonstrated that the choice of different methodologies leads to different conclusions about the prevalence of severe neuropathy, ranging from 3.4 to 29.3%. CONCLUSIONS: Using a combination of sites 3 and 4 for monofilament testing gives a reasonable compromise for time, sensitivity, and specificity. Minor changes in sensitivity and specificity can lead to major changes in the prevalence of neuropathy, with implications for workload.  (+info)

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The mixing and burning of gasair jets in the presence of mechanical vibration of the injector was studied. Initial photographic Schlierer and spectroscopic observations of a H2air and coal gasair flame vibration conditions have been carried out. The vibration obviously enhances the rate of mixing and higher mean flame temperatures result. A closed solution was obtained for the case of a vibrated gas jet mixing with its surroundings, in the near-field potential core region. Generally speaking, the theory predicted that the vibration, treated as a source of vorticity, would raise the mean axial component of velocity at any point inside the mixing region. This was verified by a hot-wire anemometer investigation. Furthermore, it was established that the vibration drives the vortex shedding mechanism in the flow from an orifice. Author
Vibration White Finger or VWF is caused by the vibrations from power tools such as drills, chainsaws or hammers. Using such tools is common practice in many construction and industry working environments.. If you are suffering from vibration white finger as a result of your work, you may be entitled to compensation.. Vibration white finger can result in horrible symptoms, including constant pain in that hands which hugely reduce your quality of life, and it can stop you working for good in the job that you love. If youre worried about the financial implications of vibration white finger, you shouldnt hesitate to make a vibration white finger claim for compensation.. Your employer has a duty to protect you from injuries such as VWF and should have trained you accordingly to make you aware of the dangers and threats that are posed in these situations. If they have failed to do so, then they become liable for compensation claims against them.. If you have not been protected from VWF then Contact ...
I am very interested in new and unusual uses of sound and vibration, and the thought occurred to me: if a molecules temperature is the result of mechanical vibration, could an inverse frequency be applied so that the molecule is slowed (and therefore, cooled) via distructive interference? Could (or does) matching the molecules vibrational frequency result in more efficient heating ...
Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 4: Gas turbine driven sets excluding aircraft derivatives
Mechanical Vibrations: Modeling and Measurement describes essential concepts in vibration analysis of mechanical systems. It incorporates the required mathematics, experimental techniques, fundamentals of model analysis, and beam theory into a unified framework that is written to be accessible to
Mechanical vibration and shock - Human exposure - Biodynamic coordinate systems (ISO 8727:1997, IDT) - SS-ISO 8727:2018This International Standard specifies anatomical and basicentric coordinate systems for biodynamical measurements, for reference purposes in cognate standard...
Sound • The human auditory system. • Noise and health Hearing damage risk. • Non-auditory health risks, vegetative responses. • Disturbance of speech communication Prediction. • Standards. • Annoyance at home and in other environments. • Sleep disturbance. • Planning and noise. Vibration • Principles of the measurement and evaluation of human vibration exposures. • Standards and Directives for whole-body vibration and hand-transmitted vibration. • Health effects of whole-body vibration. • Effects of whole-body vibration on activities. • Discomfort produced by whole-body vibration. • Vibration thresholds. • Building vibration. • Biodynamics (body transmissibility, apparent mass, models). • Seating dynamics (transmissibility, SEAT value, models). • Health effects of hand-transmitted vibration, their diagnosis, and prevention. • Measurement, evaluation, and assessment of the vibration of powered hand-held tools. • Causes of motion sickness in marine, land and ...
PURPOSE The present study was designed to investigate the electromyographic (EMG) response in leg muscles to whole-body vibration while using different body positions and vibration frequencies. METHODS Twenty male sport sciences students voluntarily participated in this single-group, repeated-measures study in which EMG data from the vastus lateralis (VL) and the lateral gastrocnemius (LG) were collected over a total of 36 trials for each subject (4 static positions × 9 frequencies). RESULTS We found that vibration frequency, body position and the muscle stimulated had a significant effect (P-values ranged from 0.001 to 0.031) on the EMG response. Similarly, the muscle × frequency and position × muscle interactions were significant (P | 0.001). Interestingly, the frequency × positions interactions were not significant (P | 0.05). CONCLUSIONS Our results indicate that lower frequencies of vibration (25-35 Hz) result in maximal activation of LG, whereas higher frequencies (45-55 Hz) elicit the
OBJECTIVES: Short-term whole-body vibration training (WBVT) has emerged as an exercise method for improving neuromuscular performance and has been proposed for injury prevention and rehabilitation. This study investigated the effects of a short-term (,/=2 months) WBVT program using a side-to-side vibration on: (i) strength profile of knee extensors (KE) and flexors (KF), (ii) functional hamstrings-to-quadriceps ratio (ECC(KF)/CON(KE)), (iii) flexibility and (iv) vertical jumping performance (VJ). Furthermore, we explored the retention of performance gains 21 days following WBVT. DESIGN: Randomized-controlled trial. METHODS: Twenty-six moderately active females (20.40+/-0.27 years) were assigned to a vibration (VG) or a control group (CG). The short-term WBVT program consisted of sixteen-sessions on a side-to-side vibration platform (frequency: 25Hz, amplitude: 6mm, 2 setsx5min). Isokinetic and isometric peak torque of KE and KF, ECC(KF)/CON(KE), flexibility, and VJ were measured pre, 2 days ...
TY - JOUR. T1 - Effect of whole-body vibration training on body composition, exercise performance and biochemical responses in middle-aged mice. AU - Lin, Ching I.. AU - Huang, Wen Ching. AU - Chen, Wen Chyuan. AU - Kan, Nai Wen. AU - Wei, Li. AU - Chiu, Yen Shuo. AU - Huang, Chi Chang. PY - 2015/9/1. Y1 - 2015/9/1. N2 - Aims Whole-body vibration (WBV) is a well-known light-resistance exercise by automatic adaptations to rapid and repeated oscillations from a vibrating platform, which is also a simple and convenient exercise for older adults. However, the potential benefits of WBV on aging-associated changes in body composition, exercise performance, and fatigue are currently unclear. The objective of the study is to investigate the beneficial effects of WBV training on body composition, exercise performance, and physical fatigue-related and biochemical responses in middle-aged mice. Methods In total, 24 male C57BL/6 mice aged 15 months old were randomly divided into 3 groups (n = 8 per group): ...
There is general agreement that physical exercise can positively influence osteoporotic fracture risk along two pathways: first by reducing the risk of falls via an improvement of fall related neuromuscular abilities; second by increasing bone strength.. Whole body vibration (WBV) training has recently been proposed as a new approach for prevention and treatment of osteoporosis. Animal studies have shown evidence that WBV may be an effective method to improve bone mass, architecture and strength. However, the results of human WBV training studies are rather heterogeneous.. In the Erlangen Longitudinal Vibration Study II (ELVIS II), a randomized, controlled 12 month lasting study the investigators determine the effect of a thrice weekly WBV training on two different devices on the osteoporotic risk factors: bone mineral density, falls and neuromuscular performance. Particular the investigators compare a bipedal vertical oscillating Plate with a plate which rotates around a central axis leading to ...
Abstract. This work explored the short-term effect of whole body vibration (WBV) training on anthropometry, body composition and muscular strength in obese women. Fifty obese women (age=46.8±7.81[SD]y; BMI=35.1±3.55kg/m2) were assigned to a ten-week WBV training period, two times a week (in each session, 14min vibration training, 5min rest; vibration amplitude 2.0-5.0mm, frequency 40-60Hz), with (n=18) or without (n=17) radiofrequency, or to a non-exercise control group (n=15). Subjects were instructed not to change their habitual lifestyle. Before and after the ten-week experimental period, anthropometric measurements, dual-energy X-ray absorptiometry (DXA), and the leg press, leg curl and leg extension strength tests were carried out. All changes in the two groups of WBV training, with or without radiofrequency, were similar and these groups were combined in a single WBV intervention group. As compared to controls, subjects submitted to WBV training had significantly lower BMI, total body ...
The purpose of this study was to investigate the effects of a single bout of whole-body vibration on isometric squat (IS) and countermovement jump (CMJ) performance. Nine moderately resistance-trained men were tested for peak force (PF) during the IS and jump height (JH) and peak power (PP) during t …
This study is a randomized controlled trial aimed to assess the efficacy of a 10-week whole body vibration training program on physical functioning, societal participation and quality of life in individuals with chronic stroke. It is hypothesized that the whole body vibration program will induce significantly more gain in physical functioning, societal participation, and quality of life in chronic stroke patients, compared with the control group ...
National Instruments recently announced the latest version of its NI Sound and Vibration Measurement Suite software, which provides a comprehensive collection of analysis and signal processing tools for noise, vibration and harshness (NVH) testing, machine condition monitoring (MCM) and audio test applications. Engineers can use the suite as stand-alone software or combine it with NI hardware and NI LabVIEW system design software to simplify test system development and control. With its new vibration data-logging functionality and other enhancements, the Sound and Vibration Measurement Suite 2011 helps engineers to more easily customize and automate any MCM or NVH test or monitoring application.. The NI Sound and Vibration Measurement Suite is an integral part of our MCM applications, said professor Jay Lee, director of the National Science Foundations Industry/University Cooperative Research Center for Intelligent Maintenance Systems at the University of Cincinnati. The suite has ...
Progress in solving the problem of hand-arm vibration for chain saw operators in Sweden from 1967 to date is reviewed. When the National Swedish Testing Institute for Agricultural Machinery measured vibration in chain saws in 1974, the average vibration level of the chain saws used in Sweden had been reduced to 30 to 40 Newtons from some 150 Newtons in 1967 as a result of manufacturers technical
This pilot study was to examine the feasibility and tolerance of whole body vibration therapy (WBVT) for children and adults with moderate severity of cerebral palsy (CP) being graded as levels III or IV on the Gross Motor Function Classification Scale (GMFCS). Study participants received the additional WBVT when standing still on the vibration platform for three 3-min bouts of vibration (20 Hz, 2 mm amplitude), 4 days per week for 4 weeks. In addition to questions relating to feasibility and participants opinions, assessment at baseline and completion of the intervention included the Gross Motor Function Measure-66 Item Set (GMFM-66 IS), 2-min walk test (2MWT), Timed Up and Go test (TUG) and Pediatric Evaluation of Disability Inventory (PEDI). Wilcoxon Signed Ranks test was used to compare the results. Fourteen participants (mean age = 25.25 years SD 3.71; 9 males, 64%; GMFCS level III n = 13, 92%) were recruited and completed the study. The attendance rate was over 90% with no adverse events. All
Fat accumulates in the bone marrow of lumbar vertebrae with bed rest. Exercise with or without whole body vibration may counter this effect. Our objectives were to measure 1) the vertebral fat fraction (VFF) of men subjected to bed rest who performed resistive exercises with (RVE, n = 7) or without whole body vibration(RE, n = 8) or no exercise (CTR, n = 9) using three MRI techniques; and 2) changes in peripheral blood counts. Twenty-four healthy men (age: 20-45 yr) underwent -6 degrees head-down tilt (HDT) bed rest for 60 days. MRI was performed using three techniques (fat saturation, proton spectroscopy, and in and out of phase) to measure the fat fraction of L(3), L(4), and/or L(5) at baseline, mid-HDT, and end-HDT. Erythrocytes and leukocytes were counted at HDT days 19, 33, 47, 54, and 60. The mean absolute VFF was increased in the CTR group at mid-HDT and end-HDT (+3.9 +/- 1.3 and +3.6 +/- 1.2%, respectively, both P , 0.05). The RE group had a smaller VFF change than the CTR group at ...
EU directive 2002/44/EC on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (vibration) has been in force since July 2002. In order to support transposition of the directive at national level, a guide intended for the Member States has been produced (manuals in German on the subject of hand-arm vibration (PDF, 1.5 MB) and whole-body vibration (PDF, 2.6 MB) are available for download in PDF format).. The German Ordinance on noise and vibration (LärmVibrationsArbSchV) of 6 March 2007 transposes the EC directive governing the protection of workers against vibration, together with the directive governing their protection against noise, into German law. The TRLV technical rules on vibration of March 2015 pursuant to the LärmVibrationsArbSchV provide information on the latters implementation.. At workplaces involving vibration exposure, risk assessments are mandatory. In this context, the A(8) daily vibration exposure value ...
Compare Whole Body Vibration (WBV) exercise fitness platform machines. Find the industrys best vibration exercise equipment for your home or gym. Dual motor and single motor units are available now. Get your own Whole Body Vibration machine today!
The main objective of the thesis is to propose the methods of determining vibration behavior of carbon nanotubes (CNTs) using continuum models and finite element models. Secondary objective is to find the effect of van der Waals force on vibration of multiwalled carbon nanotubes . The study of vibration behavior of CNTs is important because of their potential engineering applications such as nano-mechanical resonators and tips of scanning probe instruments where they are subjected to mechanical vibrations. Continuum modeling is based on an elastic beam model. The interlayer van der Waals interactions are represented by Lennard-Jones potential. In finite element modeling, single walled nanotubes (SWNTs) are modeled as finite beam elements and multi-walled nanotubes (MWNTs) as finite solid elements. The interlayer van der Waals interactions are simulated by distributed springs. The proposed finite element approach and continuum approach for vibration analysis of CNTs are verified by comparing the results
Non-contact testing is an important method for the study of the vibrating characteristic of cylindrical resonators. For the vibratory cylinder gyroscope excited by piezo-electric electrodes, mode testing of the cylindrical resonator is difficult. In this paper, a novel vibration testing method for cylindrical resonators is proposed. This method uses a MEMS microphone, which has the characteristics of small size and accurate directivity, to measure the vibration of the cylindrical resonator. A testing system was established, then the system was used to measure the vibration mode of the resonator. The experimental results show that the orientation resolution of the node of the vibration mode is better than 0.1°. This method also has the advantages of low cost and easy operation. It can be used in vibration testing and provide accurate results, which is important for the study of the vibration mode and thermal stability of vibratory cylindrical gyroscopes.
Ankle injuries are one of the most common injuries in sport, often leading to functional deficits and instability, a vicious cycle of recurrent sprains and time loss due to injury. Although research has been conducted on the best methods of treating such deficits and instability, new training methodologies are continually being sought to help improve clinical outcomes and with this comes a need for designed research to test such hypotheses. The purpose of the present research was to investigate the effect of vibration training on balance and muscle function in physically active individuals suffering self reported functional ankle instability (FAI). Stage one of the research was to initially investigate the effect of a six week whole body vibration training (WBVT) exercise routine on 38 University dancers reporting FAI. An initial assessment of the severity of the instability was done using the Cumberland Ankle Instability Tool (CAIT), to identify those who classed themselves functionally ...
A WORD ABOUT VIBRATION. Vibration in a driveshaft can be caused by many conditions. One of the most common cause of driveline vibration are worn U-joints or slip splines, out-of-balance components, yokes out of phase or misaligned angles, approaching critical speed range, and yoke ears that are not concentric with the splines. Vibrations problems must be diagnosed accurately and corrected quickly to avoid damage to the driveline components. It is often difficult to determine if a vibration of vehicle is coming from the driveshaft or something else. Here are some things to think about while you are troubleshooting any driveshaft problem. First, Second and Third Order Driveshaft Vibrations. A First order driveshaft vibration will cause one shake or disturbance for each revolution of the driveshaft. IMPORTANT: Anything that is out of balance will only cause a first order vibration, never any higher order vibrations.. First order driveshaft vibration is usually caused by:. ...
Most who work on that probably likely have experience specifically in aeroelasticity rather than a previous focus specifically just on vibrations or just on aerodynamics. I am sure there are exceptions to that rule, but that would be the most common route. The field itself is certainly related to both solids/vibrations and aerodynamics and requires knowledge of both, though it does seem to skew slightly toward solids in my admittedly limited experience with the topic ...
In 2007, research funded by the National Space Biomedical Research Institute compared the effects of exercising on a Lineal machine with the same exercises performed on a Pivotal machine.. They found that in all the body postures they tested: transmission of vibration to the head was 71 to 189% greater during vertical (Lineal) than rotational (Pivotal) vibration. and that rotational (Pivotal) vibration has the lowest risk of negative side effects.. Abercromby, A., et al. Vibration Exposure and Biodynamic Responses During Whole Body Vibration Training. Med Sci Sports Exerc. 2007 Oct;39(10):1794-800.. Other researchers have reported the following damage caused by using low magnitude Lineal vibration:. ...
Whole Body Vibration: The Not-So-New Way to Train, As fitness professionals,we should always be looking for that next tool or training method that willhelp our clients achieve a higher level of success. Whole Body Vibration (WBV) notonly helps our clients achieve a higher level of fitness -- but it does it in ashorter period of time. Although WBV has been available for the personaltraining community for over a decade, it has yet to become a standard
Preface xv. Symbols xix. 1 Introduction: Basic Concepts and Terminology 1. 1.1 Concept of Vibration 1. 1.2 Importance of Vibration 4. 1.3 Origins and Developments in Mechanics and Vibration 5. 1.4 History of Vibration of Continuous Systems 8. 1.5 Discrete and Continuous Systems 11. 1.6 Vibration Problems 15. 1.7 Vibration Analysis 16. 1.8 Excitations 17. 1.9 Harmonic Functions 18. 1.10 Periodic Functions and Fourier Series 24. 1.11 Nonperiodic Functions and Fourier Integrals 26. 1.12 Literature on Vibration of Continuous Systems 29. References 29. Problems 31. 2 Vibration of Discrete Systems: Brief Review 33. 2.1 Vibration of a Single-Degree-of-Freedom System 33. 2.2 Vibration of Multidegree-of-Freedom Systems 43. 2.3 Recent Contributions 60. References 61. Problems 62. 3 Derivation of Equations: Equilibrium Approach 68. 3.1 Introduction 68. 3.2 Newtons Second Law of Motion 68. 3.3 DAlemberts Principle 69. 3.4 Equation of Motion of a Bar in Axial Vibration 69. 3.5 Equation of Motion of a Beam ...
Whole-body vibration training is a method for muscle strengthening that is increasingly used in a variety of clinical situations. Key descriptors of vibration devices include the frequency, the amplitude, and the direction of the vibration movement. In a typical vibration session, the user stands on the device in a static position or performs dynamic movements. Most authors hypothesize that vibrations stimulate muscle spindles and alpha-motoneurons, which initiate a muscle contraction. An immediate effect of a non-exhausting vibration session is an increase in muscle power. Most studies of the longer term use of vibration treatment in various disorders have pursued three therapeutic aims: increasing muscle strength, improving balance, and increasing bone mass. In a small pilot trial in children we noted improvements in standing function, lumbar spine bone mineral density, tibial bone mass, and calf muscle cross-sectional area.. ...
In this case we finally got what we usually consider to be a true vibration. In fact that is the point of critical damping. As we increase the damping coefficient, the critical damping coefficient will be the first one in which a true oscillation in the displacement will not occur. For all values of the damping coefficient larger than this (i.e. over damping) we will also not see a true oscillation in the displacement.. From a physical standpoint critical (and over) damping is usually preferred to under damping. Think of the shock absorbers in your car. When you hit a bump you dont want to spend the next few minutes bouncing up and down while the vibration set up by the bump die out. You would like there to be as little movement as possible. In other words, you will want to set up the shock absorbers in your car so get at the least critical damping so that you can avoid the oscillations that will arise from an under damped case.. Its now time to look at systems in which we allow other external ...
books.google.comhttps://books.google.com/books/about/Mechanical_vibration_and_shock_measureme.html?id=ch0IAQAAIAAJ&utm_source=gb-gplus-shareMechanical vibration and shock measurements ...
books.google.comhttps://books.google.com/books/about/Mechanical_vibration_and_shock_measureme.html?id=ch0IAQAAIAAJ&utm_source=gb-gplus-shareMechanical vibration and shock measurements ...
One thing that does not get mentioned is the great desirability, when recording an image stack, for very low vibration even after the exposure. This is more obvious with higher magnification microscope images, and particularly wet mounts. With good EFSC there will be no vibration effects in each individual frame. However, in some DSLRs the mirror will cycle before the next exposure in conjunction with the shutter re-cocking. In some instances, this mirror motion can cause a slight jiggling of the subject on the slide, making stacking more difficult or even impossible. Naturally this is not an issue with a mirrorless camera. Certain Canon models use a separate motors for the shutter and mirror mechanisms, and those can be set so that the mirror does not cycle between shots ...
The latest design from Confidence Fitness is the new Vibration Plate. This compact machine is the answer to low impact, easy exercise with fast results in your own home. With a user friendly display console and simple to navigate menu, will make even the most inexperienced gym goers comfortable in training immediately. The Vibration Plate enhances even the most casual of activities and maximises the potential of your normal fitness regime. Whether your aim is to reduce weight improving your fitness and flexibility, or build up your muscles the power plate trainer plus will help you reach your goals. Sitting, standing or even lying on the vibration plate while doing simple weight-bearing exercises allows the vibration to stimulate and amplify the exercise. The vibration plate creates a high frequency vibration which causes a stretch reflex within the body. This means that the muscles contract involuntarily so creating the effects of exercise without the exertion of conventional exercises. The ...
A treatment known as whole body vibration therapy significantly increases bone strength among adolescents with cerebral palsy, a new clinical trial from New Zealand shows. The results were presented Saturday at The Endocrine Societys 95th Annual Meeting in San Francisco.
See Our Vibra Therapy models , Questions?. Kurt Jackson,PT,PhD,GCS, is the neurology coordinator and Harold Merriman,PT,PhD,CLT is the general medicine coordinator for the Doctor of Physical Therapy Program in the Department of Health and Sports Science at the University of Dayton in Dayton, OH.. REFERENCES. 1. Abercromby AF, Amonette WE, Layne CS, et al. Vibration exposure and biodynamic responses during whole-body vibration training. Med Sci Sports Exerc. 2007;39(10):1794-1800.. 2. Jordan MJ, Norris SR, Smith DJ, Herzog W. Vibration training: an overview of the area, training consequences, and future considerations. J Strength Cond Res. 2005;19(2):459-466.. 3. Cardinale M, Bosco C. The use of vibration as an exercise intervention. Exerc Sport Sci Rev. 2003;31(1):3-7.. 4. Bosco C, Colli R, Introini E, et al. Adaptive responses of human skeletal muscle to vibration exposure. Clin Physiol. 1999;19(2):183-187.. 5. Nishihira Y, Iwasaki T, Hatta A, et al. Effect of whole body vibration stimulus and ...
By analyzing the measurement data, vibration measurement gives a clear picture of the machine. On this basis a good estimation of the machines efficiency, mechanical risks and required maintenance can be made. Vibration measurements make a vital contribution to predictive maintenance and continuity assurance.. To perform the measurements and analysis, vibration sensors need to be carefully placed on specific places of the machine, depending on the application. Through a data collector, all the information will be stored. This data is analyzed by one of our specialists and on the basis of the analysis, a report of recommendations can be drawn up.. ...
MINNESOTA (AP) - Have you ever put your phone on vibrate and you feel it ring, but you come to find out that no one has called you after picking it up? You can relax because that sensation is known as phantom cell phone vibrations. In time the brain starts to over-anticipate, picking up all sorts of cues. So, for many people, the vibrations are felt when theyre walking, rubbing on a counter or putting on a seatbelt.. If youre in a situation where your pants are dragging against your skin, youre creating signals that are stimulating these vibration sensors that are being carried into the brain, Schrater said.. ...
Truck drivers suffer from numerous health issues, predominantly musculoskeletal disorders (MSDs) in the low back. These MSDs have been strongly associated with exposure to whole body vibration (WBV). This proposal will determine if reducing WBV exposure will improve the health and safety of trucker drivers in Washington State and the United States.. Amount Awarded: $253,525.00.. ...
All heart vibrations sensation - Are all heart vibrations sensation due to afib? No. Heart vibrations or palpitations are due to many different heart dysrhythmias. They occur whith extra heart beats called premature atrial or ventricular contractions, or rapid heart rates including normal tachycardia or abnormal supraventricular tachycardia. Atrial fibrillation is an irregularly irregular heart rhythm. Electrocardiograms or special monitors help define the rhythm type.
Who cannot use Whole Body Vibration (WBV)? Most adults from the physically fit to the sedentary can use WBV. While the following list of medical conditions is not complete, we strongly advise that you consult with your physician before using WBV if any of the following conditions apply to you. This does not mean that if you are suffering from any of the conditions on the list, you could never use WBV. In a number of cases, it is highly recommended to integrate vibration training in a treatment plan under the medical advice of a doctor, specialist, or physiotherapist. These cases include, but are not limited to: pregnancy, pulmonary embolism, acute hernia, discopathy, spondylolysis, acute thrombosis, severe diabetes, known neurological conditions, migraines, epilepsy, pre-existing deep vein thrombosis, cardiovascular disease, recent infections, pacemaker and implantable cardioverter defibrillators, those undergoing cancer treatments (chemotherapy/radiation) or who have tumors, known retinal ...
Objective: Occupational exposure to hand-transmitted vibration can result in damage to nerves and sensory loss. The goal of this study was to assess the frequency-dependent effects of repeated bouts of vibration on sensory nerve function and associated changes in nerves. Methods: The tails of rats were exposed to vibration at 62.5, 125, or 250 Hz (constant acceleration of 49 m/s(2)) for 10 days. T
The inner ear is an organ located deep within the temporal bone, which is the bone of the skull on both sides of the head above and to the sides of the outer ear. The inner ear has two main structures: the semicircular canals and the cochlea.. The semicircular canals do not contribute to hearing, but assist in maintaining balance as we move. The cochlea is the hearing organ of the inner ear, which is a fluid-filled structure that looks like a snail. The cochlea changes the mechanical vibrations from the tympanic membrane and the ossicles into a sequence of electrical impulses. Sensory cells, called hair cells, bend in the cochlea as the fluid is disrupted by the mechanical vibrations. This bending of the hair cells causes electrical signals to be sent to the brain by way of the auditory nerve. The cochlea is arranged by frequency, much like a piano, and encodes sounds from 20Hz (low pitch) to 20,000Hz (high pitch) in humans.. ...
The common sensation of ringing in the ears is thought to occur due to a malfunction in the movements of sound waves through the ear canal. When a sound reaches the human ear, it enters as a pressure wave of vibrating air. This is converted into mechanical vibrations by the eardrum. The sound is then amplified by the hammer (stirrup) structure, before flowing into a fluid-filled space in the inner ear.. Here the mechanical vibration of the sound is converted into a nerve signal. This process is controlled by a part of the cochlea (the inner ear structure) called the Organ of Corti. A signal is then sent to the temporal lobe of the brain. This is what controls our hearing, and tells our mind that we are hearing a sound.. Tinnitus is thought to result from a malfunction in the Organ of Corti - when its tiny hair cells die. These are responsible for detecting sound at a set frequency and measuring its volume. Unfortunately, when these cells die, the 20,000 nerve receptors they are attached to ...
NATIONAL TAIWAN UNIVERSITY - Effect of Whole Body Vibration on Muscle Tone and Hardness of Lower Extremity in the Patients with Spinal Cord Injury ...
At present it seems likely that the different components of the hand-arm vibration syndrome, eg, vibration-induced white finger (VWF), numbing of the hands and arms, muscular fatigue, and occasionally prevalent bone degeneration, may arise independently, and therefore they should be evaluated separately. Evidence of changes caused in the autonomic nervous functions of the body by local vibration is not conclusive. The vascular history should be confirmed objectively with a cold provocation test under laboratory conditions. In individual diagnostics it is useful to record (with modern plethysmographic techniques) the recovery of digital temperature, digital blood pressure, and flow after local cooling. Vibrotactile perception measurement seems to be suitable for group diagnosis. Much of the diagnostic weight for VWF can be obtained from accurate case histories, although, for early changes, the history may be atypical. The lack of simple objective tests for evaluating the hand-arm vibration ...
ABSTRACT In a study of vibration-induced white finger (VWF) 39 chain saw operators, being representative of 365 lumberjacks according to a completed questionnaire, underwent clinical investigation. In a medical interview 13 of the 39 had VWF and 26 were without finger symptoms. In the subjects with VWF both hands were equally affected, the third and fourth finger most frequently; the thumbs were always normal. A cold provocation test, measuring the finger systolic blood pressure with a cuff technique during combined body cooling and finger cooling to 30, 15, and 6°C, was applied to the 39 chain saw operators and to 20 age-matched outdoor workers who had not used vibrating hand tools. The finger most often showing Raynauds phenomenon was cold provoked, and a non-affected finger was used as a reference. The systolic pressure gradient measured at 30°C from the upper arm to the cooled finger was increased in the chain sawyers most severely affected by VWF compared with the control group and with ...
OBJECTIVES To investigate the acute effects of the frequency of hand transmitted vibration on finger circulation. A further aim was to investigate whether the frequency weighting assumed in current standards for hand transmitted vibration reflects the haemodynamic changes which occur in the fingers exposed to vibration with different frequencies but with the same frequency weighted acceleration magnitude.. METHODS Finger skin temperature (FST) and finger blood flow (FBF) were measured in the middle fingers of both hands of 10 healthy men. With a static load of 10 N, the right hand was exposed for 15 minutes to the following root mean square (rms) acceleration magnitudes and frequencies of vertical vibration: 5.5 m/s2 at 16 Hz; 11 m/s2 at 31.5 Hz; 22 m/s2 at 63 Hz; 44 m/s2 at 125 Hz; and 88 m/s2 at 250 Hz. These exposures to vibration produce the same frequency weighted acceleration magnitude (5.5 m/s2rms) according to the frequency weighting included in the international standard ISO 5349. A ...
Dentists, dental technicians and dental hygienists use vibrations from motorized dental equipment, which can cause a condition called Hand-Arm Vibration Syndrome (HAVS)
INTRODUCTION: This study aimed to determine the prevalence of Dupuytrens disease in men and its relationship with work exposure, particularly heavy manual work with and without significant use of vibrating tools, using data from a surveillance program for musculoskeletal disorders. METHOD: This cross-sectional study was conducted in France between 2002 and 2005. Dupuytrens disease was diagnosed clinically by one of 83 occupational physicians. Exposure in relation to work status and occupational risk factors was assessed with a self-administered questionnaire, and categorised according to vibration exposure (defined as use of vibrating tools for ≥2 h/day), heavy manual work without vibration exposure (defined as use of hand tools for ≥2 h/day (use of vibrating tools for ≥2 h/day excluded) and Borg scale ≥15/20) and no such exposure. Bivariate and multivariate associations using logistic models were recorded in men and in those with |10 years in the same job. RESULTS: Of 2161 men, 1.3% (n=27)
In this crossover study we investigated the differential treatment effects of visual exploration training alone and visual exploration training in combination with neck muscle vibration. The results provide clear evidence that the addition of contralesional neck vibration to a standard method of treating neglect leads to additive and lasting treatment effects. Further, we showed that the additive effects of vibration transferred from trained tasks (visual exploration) to untrained tasks (text reading), and from the visual to the tactile mode. Moreover, the combined treatment led to a reduction in daily life problems concerning self care, reaching and grasping, and spatial orientation in comparison with the effects achieved by exploration training alone.. These improvements are not the result of therapeutic cost effects because in the exploration tasks as well as in text reading the amelioration of exploration behaviour on the contralesional left side was not accompanied by an increase of ...
An electronic still camera with a printer includes a vibration detector and a system controller. The vibration detector detects vibration relative to a moving direction of an exposure head of the printer. When the vibration detector detects the vibration exceeding a prescribed level, the system controller interrupts a printing operation of the printer. After that, when the vibration detector detects the vibration falling below the prescribed level, the system controller resumes the printing operation. The exposure head is adapted to be moved, performing the printing operation one line by one line. Until the printing operation for one line is completed, the system controller suspends to interrupt the printing operation.
OBJECTIVE: To examine the therapeutic potential of stochastic vibrotactile stimulation (SVS) as a complementary non-pharmacological intervention for withdrawal in opioid-exposed newborns. STUDY DESIGN: A prospective, within-subjects single-center study was conducted in 26 opioid-exposed newborns ( | 37 weeks; 16 male) hospitalized since birth and treated pharmacologically for Neonatal Abstinence Syndrome. A specially-constructed mattress delivered low-level SVS (30-60Hz, 10-12mum RMS), alternated in 30-min intervals between continuous vibration (ON) and no vibration (OFF) over a 6-8 hr session. Movement activity, heart rate, respiratory rate, axillary temperature and blood-oxygen saturation were calculated separately for ON and OFF. RESULTS: There was a 35% reduction in movement activity with SVS (p|0.001), with significantly fewer movement periods | 30 sec duration for ON than OFF (p = 0.003). Incidents of tachypneic breaths and tachycardic heart beats were each significantly reduced with SVS, whereas
In human subjects the triceps surae of one leg was exercised eccentrically by asking subjects to walk backwards on an inclined treadmill. Before the exercise controlled local pressure, applied to the muscle with an electromagnet, produced mild soreness, which was reduced when the pressure was combined with vibration. When delayed-onset muscle soreness (DOMS) had set in, 24-48 h after the exercise, vibration increased pain from local pressure. Vibrating at different frequencies suggested 80 Hz as the optimal frequency. During 2-h testing post-exercise, evidence of a change in character of the effects of vibration was first detected at 6 h. It persisted up to 72 h post-exercise. When muscle pain was generated in an unexercised triceps by injection of hypertonic (5%) saline, controlled local pressure applied to the sore area increased pain levels by 32% while pressure plus vibration reduced this to 11%. In a subject with DOMS, local pressure again increased pain from saline by 32% but combining it ...
Hello and welcome to Hearing TV. My name is Merren Davies.. In the last episode we discussed Middle Ear hearing implants.. Today we are going to INTRODUCE the COCHLEAR IMPLANT.. The cochlear implant could be described as the ULTIMATE SOLUTION for people who cannot benefit from a conventional hearing aid.. To understand how the COCHLEAR IMPLANT works we need to remind ourselves of how normal hearing works:. Sounds around us reaches our ears by a relay of air molecule vibrations. These vibrations reach our eardrum, which transmit the VIBRATION of sound through to the INNER EAR via the interconnection of the 3 smallest bones in the body, which CONNECT the EARDRUM to the INNER EAR - the COCHLEA.. The COCHLEA changes the mechanical Vibration into an Electrical signal, which is picked up by our Hearing Nerve and transmitted up to the BRAIN - where the true HEARING happens.. Most permanent hearing losses are due to a malfunction of the INNER EAR. The COCHLEAR IMPLANT is designed to replace the ...
Noise has many meanings but in the context of environmental management the term is synonymous with sound or acoustic energy and is taken to include mechanical vibration. However, noise and sound generally refer to acoustic energy in the atmosphere and vibration refers to acoustic energy in condensed media such as the ground, water and built structures.. High levels of noise are generally considered to be unpleasant and can have health implications. Elevated levels of noise in a neighbourhood are consistent with reduced amenity and would be expected to lead to devaluations in property values. Given the option, people and animals tend to leave areas with high ambient noise levels.. In general, the level of noise emitted from a device or an activity can be controlled.. The legislative thrust, as presented in the Environment Protection Policy (Noise) 2009, is to protect those qualities of the acoustic environment that are conducive to the wellbeing of the community together with its ...
Vocal fold vibration is vital in voice production and the correct pitch of speech. We have developed a high speed functional optical coherence tomography (OCT) system with a center wavelength of 1050 nm and an imaging speed of 100,000 A-lines per second. We imaged the vibration of an ex-vivo swine vocal fold. At an imaging speed of 100 frames per second, we demonstrated high quality vocal fold images during vibration. Functional information, such as vibration frequency and vibration amplitude, was obtained by analyzing the tissue surface during vibration. The axial direction velocity distribution in the cross-sectional images of the vibrating vocal folds was obtained with the Doppler OCT. The quantitative transverse direction velocity distribution in the cross-sectional images was obtained with the Doppler variance images.. ©2011 Optical Society of America. Full Article , PDF Article ...
Three compounds derived from 4-aminoantipyrine (AA) were synthesized and their structures confirmed by melting point, elemental analysis, FT-IR, and 1H-NMR. The molecular structures of the four compounds were characterized by single-crystal X-ray diffraction and calculated by using the density functional theory (DFT) method with 6-31G (d) basis set. The calculated molecular geometries and the vibration frequencies of the AA derivatives in the ground state have been compared with the experimental data. The results show that the optimized geometries can reproduce well the crystal structural parameters, and the theoretical vibration frequencies show good agreement with the experimental data, although the experimental data are different from the theoretical ones due to the intermolecular forces. Besides, the molecular electrostatic potential (MEP) and the frontier molecular orbital (FMO) analysis of the compounds were investigated by theoretical calculations.
The effects of localized vibration on delayed onset muscle soreness following intense eccentric cycling - Dr. Fredrick Peters - Doctoral Thesis / Dissertation - Physical Therapy / Occupational Therapy - Publish your bachelors or masters thesis, dissertation, term paper or essay
Sum frequency generation (SFG) vibrational spectroscopy was used to investigate the interfacial properties of several amino acids, peptides, and proteins adsorbed at the hydrophilic polystyrene solid-liquid and the hydrophobic silica solid-liquid interfaces. The influence of experimental geometry on the sensitivity and resolution of the SFG vibrational spectroscopy technique was investigated both theoretically and experimentally. SFG was implemented to investigate the adsorption and organization of eight individual amino acids at model hydrophilic and hydrophobic surfaces under physiological conditions. Biointerface studies were conducted using a combination of SFG and quartz crystal microbalance (QCM) comparing the interfacial structure and concentration of two amino acids and their corresponding homopeptides at two model liquid-solid interfaces as a function of their concentration in aqueous solutions. The influence of temperature, concentration, equilibration time, and electrical bias on the extent
Viscous friction occurs between the roller guide shoes and guide rail because of the grease layer.This friction causes to vibration on the cage. This studys aim is an investigation and active control of that vibration for passengers. Initially, the passenger elevators dynamics modeling is carried out by Linear Graph Method. The DC motor and AC motor parameters are used in the system modeling separately. Then, vibrations occurred on the elevator cabin are observed. Finally, the effect of vibrations is reduced with the aid of an active controller. The time and frequency responses are compared for two kinds of the motor. ...
Bacterial diversity analysis of moderately thermophilic microflora enriched by different energy sources In this study, cultures grown from explants of rabbit rib perichondrium were exposed to exogenously added transforming growth factor-beta 1 at concentrations of 0.1-10 ng/ml of media. Correlations with the Short Form-36 were used to investigate the convergent validity. Antioxidant status in ceftin dogs with idiopathic dilated cardiomyopathy. The pathological hallmark of Alexander disease is the inclusion body, known as Rosenthal fiber, within the cell bodies and processes of astrocytes. Although IL-4, IL-5, IL-10, and IL-13 each regulate distinct aspects of the granulomatous inflammatory response, IL-13 was identified as the primary mediator of liver fibrosis. Acute effect of whole body vibration on postural control in congenitally blind subjects: clarithromycin a preliminary evidence. Heterokaryons have been utilized for complementation and dominance testing of mutations that affect ...
0042]The forearm brace 20, as shown in a highly schematic view of FIG. 1, generally comprises three interoperating portions. The first portion is the attachment device 24 which is configured to attach to the power tool 22. In one form, the attachment device 24 can be attached to the power tool 22 without requiring any substantial or permanent modification to the power tool 22. This allows the forearm brace 20 to be positioned upon a variety of power tools. The second portion of the forearm brace 20 is the support arm 26 which extends longitudinally outward from the power tool 22 and is formed as part of, or coupled to, the attachment device 24. The third portion of forearm brace 20 is the forearm engagement surface 28 which is connected to the support arm 26 substantially at the opposite end from the power tool 22 and attachment device 24. The forearm engagement surface 28 may be a rigid device, which can extend transversely outward from one or both transverse sides of the support arm 26. This ...
There are a handful of naturally occurring materials, known as piezoelectric materials, that generate electricity if you bend, stretch or apply another mechanical force to them, and vice versa -- if you apply a voltage across them, theyll deform accordingly. These materials are currently the subject of intense research for their potential applications in energy harvesting, artificial muscles and sensors, among others. These materials are also used in everyday devices, such as loudspeakers, which rely on piezoelectrics to convert electrical signals to mechanical vibrations which create sound waves to produce the desired acoustic signal. Mechanical engineers have now identified one of the thinnest possible piezoelectric materials on the planet -- graphene nitride ...
In 1880, French physicists Pierre Curie, and his elder brother Jacques Curie, discovered the piezoelectric effect in certain crystals. Paul Langevin, a student of Pierre Curie, developed piezoelectric materials, which can generate and receive mechanical vibrations with high frequency (therefore ultrasound). During WWI, ultrasound was introduced in the navy as a means to detect enemy submarines. In the medical field, however, ultrasound was initially used for therapeutic rather than diagnostic purposes. In the late 1920s, Paul Langevin discovered that high power ultrasound could generate heat in bone and disrupt animal tissues. As a result, ultrasound was used to treat patients with Ménière disease, Parkinson disease, and rheumatic arthritis throughout the early 1950s. Diagnostic applications of ultrasound began through the collaboration of physicians and SONAR engineers. In 1942, Karl Dussik, a neuropsychiatrist and his brother, Friederich Dussik, a physicist, described ultrasound as a ...
Biomechanical stimulation (BMS) is a term generally used for localised biomechanical oscillation methods, whereby local muscle groups are stimulated directly or via the associated tendons by means of special hand held mechanical vibration devices. Biomechanical oscillation therapy and training is offered in a variety of areas such as competitive sports,[37] fitness, rehabilitation,[38] medicine,[39] prevention, beauty, and used to improve performance of the muscles and to improve coordination and balance. It is often used in the Myofascial trigger point therapy concept to invoke reciprocal inhibition within the musculoskeletal system. Beneficial effects from this type of stimulation have been found to exist, the efficacy of the BMS Matrix therapy was proven in an independent study.[40] carried out by TÜV-Süd which was commissioned by German health insurer BKK Gesundheit ...
Environment, more than anything, influences what a listener deems to be good music. Music at its bare is simply a chemical reaction; the hairlike cilia of the inner ear convert mechanical vibrations to electro-chemical neuron signals. Many theories of musical organization exist; in fact, a huge literature surrounds the western 12 tone scale. But perhaps it is the dead weight of tradition that holds the piano scale in such esteem. Conventions are probably the greatest barrier to rational inquiry and progress in music. The hearing mechanism is completely and totally aurally neutral, and it is probably only through proper indoctrination that we come to know what we like. There is a noticeable lack of individuality in contemporary music. MTV always seems to sound alike; orchestral performers look ready to fly apart at the seams from the frenzied ceaseless motions. Against this backdrop, it may well be that the prime directive for contemporary musicians is to explore new sounds on new instruments. ...
We discuss spacecraft Doppler tracking for detecting gravitational waves in which Doppler data recorded on the ground are linearly combined with Doppler measurements made on board a spacecraft. By using the four-link radio system first proposed by Vessot and Levine, we derive a new method for removing from the combined data the frequency fluctuations due to the Earth troposphere, ionosphere, and mechanical vibrations of the antenna on the ground ...
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OBJECTIVE: To show that neck proprioceptive input can induce long-term effects on vestibular-dependent self-motion perception. METHODS: Motion perception was assessed by measuring the subjects error in tracking in the dark the remembered position of a fixed target during whole-body yaw asymmetric rotation of a supporting platform, consisting in a fast rightward half-cycle and a slow leftward half-cycle returning the subject to the initial position. Neck muscles were relaxed or voluntarily contracted, and/or vibrated. Whole-body rotation was administered during or at various intervals after the vibration train. The tracking position error (TPE) at the end of the platform rotation was measured during and after the muscle conditioning maneuvers. RESULTS: Neck input produced immediate and sustained changes in the vestibular perceptual response to whole-body rotation. Vibration of the left sterno-cleido-mastoideus (SCM) or right splenius capitis (SC) or isometric neck muscle effort to rotate the ...
Now here is a pair of gaming headphones that you might want to consider, especially since it comes with one feature that most of the other gaming headsets in the market do not - vibration! Well, the company behind this pair of gaming headphones needed to do something really different from what is already available in order to capture the attention of a fickle audience, doesnt it? Hence the $49.99 Rosewill 5.1 Channel Gaming Headset with Vibration, where it is said to offer you a whole lot more bang for your hard earned buck.. The Rosewill 5.1 Channel Gaming Headset with Vibration, as its name suggests will come with 5.1 surround sound capability, complete with vibration and 8 precise speakers. Fret not, your ears will not fall off after a particularly gruelling gaming session, as there will be soft ear-pad cushions that offer an additional level of comfort, while the headset itself boasts of an excellent uni-directional, noise-cancelling microphone. Heck, the included driver CD will even allow ...
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Wind Turbine Vibrations. This is a lumped parameter model of a wind turbine that can be used to study the vibrations that result due to unbalanced rotors. The percentage difference p between the mass moment of inertia of the blade that causes the imbalance and the mass moments of inertia of the other two standard blades is one of the parameters that can be varied. Download a MapleSim model file for Wind Turbine Vibrations. Get the S-Function for Wind Turbine Vibrations
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nothing is at rest; facts which Modern Science endorses, and which each new scientific discovery tends to verify. And yet this Hermetic Principle was enunciated thousands of years ago, by the Masters of Ancient Egypt. This Principle explains that the differences between different manifestations of Matter, Energy, Mind, and even Spirit, result largely from varying rates of Vibration. From THE ALL, which is Pure Spirit, down to the grossest form of Matter, all is in vibration - the higher the vibration, the higher the position in the scale. The vibration of Spirit is at such an infinite rate of intensity and rapidity that it is practically at rest - just as a rapidly moving wheel seems to be motionless. And at the other end of the scale, there are gross forms of matter whose vibrations are so low as to seem at rest. Between these poles, there are millions upon millions of varying degrees of vibration. From corpuscle and electron, atom and molecule, to worlds and universes, everything is in ...
Twenty-three common used Chinese medicinal raw materials were directly determined with Fourier Transform Raman spectroscppy for the first time. Varied chemical components of different medicinal materials lead to different characters in vibration frequency of Raman functional groups. It was found that the vibration frequency variance follows a certain specific regularity. This method is relatively more precise and quicker, and without damage of the sample.
SYSTEM TO TRANSMIT VITAL SIGNALS FROM MOVING BODY WITH DYNAMIC EXTERNAL DISTURBANCE AND TO COMPENSATE ARTIFACT THEREOF - The present invention relates to a system to transmit vital signals from a moving human body in the presence of dynamic external disturbance and to compensate for artifacts thereof. More specifically, it relates to a system to compensate for artifacts caused by external noise during measurement of vital signals, and to display index of vibration on the monitoring system through interpretation of the vibration signals which affect the physiological state of the body and the measurement of vital signals, due to external disturbance factors, when noise from external disturbances such as vibration of a moving ambulance vehicle, vibration of a remote transmitting diagnostic device attached to the patient, or movement of the patient, is mixed into the transmitted signals. The present invention provides a start code, a data code, a degree of vibration and movement level, a three axis ...
Shock and Vibration is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles on all aspects of shock and vibration, especially in relation to civil, mechanical, and aerospace engineering applications.
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An ultrasonic surgical instrument for dissection and coagulation of tissue is provided. The surgical instrument includes a vibration coupler supported within a housing and operably connected to an ultrasonic generator. An angled blade member is connected to the distal end of the vibration coupler to conduct high frequency vibration from the ultrasonic generator to the blade member. A clamp member is positioned adjacent to the blade member and is movable from a first position to a second approximated position. The clamp member and angled blade member combine to enhance contact between the tissue and the blade member during operation of the instrument to improve the performance of the instrument.
This hand held vibration instrument for gum massage and removal of tartar formation is based on the piezo-electric effect. It comprises a high frequency oscillator which drives a set of piezo-electric wafers acting as transducers. The high frequency oscillator (18) which derives its power from the low voltage secondary of a mains transformer, drives a set of piezoelectric wafers (9,10) attached to the metallic vibrator (3). This extends via a vibration transformer (6), which transforms short sharp amplitudes into greater more gentle vibrations, to a rod (7), at the end of which is a bulb shaped tool (26). A central channel (22) is provided for a cleansing fluid.
In this paper, the vibrational behavior of the multiwalled carbon nanotubes (MWCNTs) embedded in elastic media is investigated by a nonlocal shell model. The nonlocal shell model is formulated by considering the small length scales effects, the interaction of van der Waals forces between two adjacent tubes and the reaction from the surrounding media, and a set of governing equations of motion for the MWCNTs are accordingly derived. In contrast to the beam models in the literature, which would only predict the resonant frequencies of bending vibrational modes by taking the MWCNT as a whole beam, the current shell model can find the resonant frequencies of three modes being classified as radial, axial, and circumferential for each nanotube of a MWCNT. Big influences from the small length scales and the van der Waals forces are observed. Among these, noteworthy is the reduction in the radial frequencies due to the van der Waals force interaction between two adjacent nanotubes. The numerical ...
CS1 maint: discouraged parameter (link) Lukas, Michael (2005-08-05). "Israel Vibration". Washington City Paper. Retrieved 2015- ...
Vibration signals". Behavioral Ecology and Sociobiology. 4 (2): 183-216. doi:10.1007/BF00354979. Goldstein, M. H.; Topoff, H. ( ...
Vibration effects will not work on the Xbox One Controller. According to MSDN, "the combination of the left and right triggers ... On the other hand, Xbox 360 controller and XInput support only very basic control of vibration motors in contrast with great ... "XINPUT_VIBRATION". Msdn.microsoft.com. Retrieved 2009-01-25. "DIEFFECT". MSDN. Microsoft. Retrieved 2009-01-25. "DirectInput". ... In addition, many DirectInput devices also have vibration effects. At least one driver, XBCD, gives the Xbox 360 controllers ...
phantom vibration....emotional reactions correlate with increased phantom vibrations.... Vindy.com (February 22, 2015). "Young ... She studied the issue of phantom vibrations experienced by many cell phone users in which a phone seems to vibrate but doesn't ... She found that people were more likely to experience phantom vibrations if they expected to react emotionally to incoming ... Michelle Drouin... 89% of the undergraduates in her study had experienced these phantom vibrations... Larry Rosen (December 18 ...
Vibration measurement; Helicopters; Health and usage monitoring). Archived 2010-07-25 at the Wayback Machine NASA Glenn ...
... reducing the ability of vibrations in the floor to cause vibrations in the tabletop. The surface of an optical table is ... making the setup less sensitive to vibrations from motorized optics, cooling water pumps, etc. Vibration damping may be added ... Even small vibrations or strain in the table on which the elements are set up might lead to complete failure of an experiment. ... Such tables were very heavy and expensive, however, and did not do a good job of damping vibrations. Mounting components to a ...
The most widely known of these are his books on vibration analysis, first published by McGraw-Hill in 1944 as Vibration ... N. O. Myklestad, Fundamentals of Vibrations Analysis, McGraw-Hill, 1956. N. O. Myklestad, "Vibration Considerations in Design ... Myklestad, N. O. (1944). Vibration Analysis. McGraw-Hill. Myklestad, N. O. (1956). Fundamentals of Vibration Analysis. McGraw- ... An authority on mechanical vibration, he was employed by a number of important US engineering firms and served on the faculty ...
"Vibration Animations". lpsa.swarthmore.edu. Bobkov, K. K.; Bubnov, M. M.; Aleshkina, S. S.; Likhachev, M. E. (22 May 2018). " ...
Phantom Vibration! (ファントム・ヴァイブレーション!, released December 29, 2011; GRN-029): Debut solo single. The single included an ...
Chasing the Vibration. Devon: Stride Publications. pp. 156-163. ISBN 1-873012-81-0. Cook, Richard; Morton, Bryan (2002). The ...
Bishop, R. E. D. (1979). Vibration (2nd ed.). Cambridge University Press. ISBN 0-521-22779-8. Palmer, Alan; Veronica (1992). ...
Firearm vibration control. US patent 2302699. Klipsch, P.W., 11/14/1942. Horn for loud-speaker. US patent 2310243. Klipsch, P.W ... "Firearm vibration control - Klipsch, Paul W." freepatentsonline.com. "Horn for loud-speaker - Ray, Smith L." freepatentsonline. ...
Sound and Vibration. Retrieved 31 May 2011. "Police Take Accident Reconstruction To Skies: Photogrammetry Animation Can Be Used ...
In May 1956 he submitted his PhD thesis in the title "Approximate theories for the flexural vibration of uniform beams and ... He first introduced how this experiment had been conducted, "The approximate theories of flexural vibration dealt with in the ... p. 1. Barr, Allan David Stephen (2015). Approximate theories for the flexural vibration of uniform beams and their derivation ... Barr, Allan David Stephen (2015). Approximate theories for the flexural vibration of uniform beams and their derivation from ...
Otis, Erik (November 11, 2011). "Anticon's Odd Nosdam gives Sound Colour Vibration an exclusive interview". Sound Colour ... Vibration. Thomas-Glass, Daniel (June 25, 2002). "Reaching Quiet - in the shadow of the livingroom". Dusted Magazine. Ho, Brian ...
Erik Otis (October 25, 2011). "Giovanni Marks aka Subtitle drops an exclusive mix with Sound Colour Vibration". Sound Colour ... Vibration. Archived from the original on May 2, 2012. Subtitle on Alpha Pup Records Subtitle discography at Discogs. ...
Musically, these objects are classified as a type of bell (a bell is a hollow object which has maximum vibration around an open ... Jenny, Hans (2001). Cymatics; A Study of Wave Phenomena and Vibration. Newmarket, New Hampshire, USA: Trans Stephenson, ... a wooden mallet sometimes called a wand or puja is rotated around the outside rim to excite continuous vibrations in the bowl ... Vibration Worldwide. 45 (1): 12-23. doi:10.1260/0957-4565.45.1.12. S2CID 53583765. Young, Diana; Essel, Georg (22 June 2003). " ...
In Wilson's GF method it is assumed that the molecular kinetic energy consists only of harmonic vibrations of the atoms, i.e., ... Wilson, E. B.; Decius, J. C.; Cross, P. C. (1995) [1955]. Molecular Vibrations. New York: Dover. ISBN 048663941X. CS1 maint: ... 1941). "Some Mathematical Methods for the Study of Molecular Vibrations". J. Chem. Phys. 9 (1): 76-84. Bibcode:1941JChPh...9... ... or molecular vibration. Now, s = L Q = L l t r q = B M − 1 / 2 q ≡ D q , {\displaystyle \mathbf {s} =\mathbf {L} \mathbf {Q} =\ ...
MadSkill → "Good vibration". International Federation of the Phonographic Industry - Slovakia (in Slovak). SNS IFPI. ifpicr.cz ... MadSkill → "Good vibration". International Federation of the Phonographic Industry - Slovakia (in Slovak). SNS IFPI. ifpicr.cz ...
VR - Vibration Reduction. Uses a moving optical group to reduce the photographic effects of camera shake. Nikkor Z 20 mm f/1.8 ...
CS1 maint: discouraged parameter (link) "Ladyfest 2014 - Vibration - 107.2 FM Brussels - 91.0 FM Mons". www.vibration.fm. 2014- ...
Lock, Graham (1994). Chasing the Vibration. Devon: Stride Publications. p. 120. ISBN 1-873012-81-0. Warburton, Dan (November 3 ... Dawn of a New Vibration (Fractal, 2000) Arthur Doyle, Live at Glenn Miller Cafe (Ayler, 2001) Gil Evans, Into the Hot (Impulse ...
Self-excited vibration. In journal bearings, self-excited vibration can appear past a given speed, because of the cross-coupled ... This vibration can lead to an instability and threaten the gas bearing operation. Precise dynamic computations are required to ... These appear as weak gas pressure stimulates vibration. Examples of the benefits are: linear drives with accelerations of more ... vibration-free within the entire operating range even with high air pressure supply (actually even much more than 10 bar are ...
Martinez, George; Abitia, Nick; Otis, Erik (January 27, 2014). "Q&A with DJ Nu-Mark of Jurassic 5". Sound Colour Vibration. ...
Vibration & seismic performance. The facilities of the Institute are accredited as per ISO/IEC 17025 quality norms and the ...
Vibrations of a motor or engine can induce resonant vibration in its supporting structures if their natural frequency is close ... "self-sustaining vibration" as referred to in the nonlinear theory of vibrations. The Q factor or quality factor is a ... Many sounds we hear, such as when hard objects of metal, glass, or wood are struck, are caused by brief resonant vibrations in ... Resonant systems can be used to generate vibrations of a specific frequency (e.g., musical instruments), or pick out specific ...
Sound Colour Vibration". soundcolourvibration.com. Archived from the original on 5 November 2011. Retrieved 12 April 2012. "Q&A ...
"Vibration and Noise". Pumping Station Design (Rev. 3rd ed.). USA: Butterworth-Heinemann. p. 22.44. ISBN 9781856175135. ...
Sound Colour Vibration. Retrieved 1 November 2011. CS1 maint: discouraged parameter (link) "Fusion requires deep thought and ...
CS1 maint: discouraged parameter (link) "Q&A with Linda Perhacs". Sound Colour Vibration. March 22, 2013. Archived from the ...
A sensible body vibrator has a vibration unit mounted in a human body support such as a bed or a chair and adapted to generate ... mechanical vibrations upon receipt of a low-frequency signal. The inputting of various kinds of signals (including a low- ... Sound and Vibration Transmission Pad and System. US20140010387 *. 6 Jul 2013. 9 Jan 2014. Daniel E. Cohen. Sound and Vibration ... Vibration source driving device. US20050053252 *. 16 Sep 2004. 10 Mar 2005. Cohen Daniel E.. Sound and vibration transmission ...
A treatment known as whole body vibration therapy significantly increases bone strength among adolescents with cerebral palsy, ... Researchers used special X-ray tests to measure bone-mineral density and muscle mass before and after the whole body vibration ... To assess the effects of whole body vibration therapy, researchers recruited 13 adolescents with cerebral palsy to receive the ... SAN FRANCISCO-- A treatment known as whole body vibration therapy significantly increases bone strength among adolescents with ...
Subject: Can mechanical vibration reduce temp. by countering molec. vibration?. Date: Thu Feb 24 13:55:09 2000. Posted by Derek ... Re: Can mechanical vibration reduce temp. by countering molec. vibration? Current Queue , Current Queue for Physics , Physics ... I am very interested in new and unusual uses of sound and vibration, and the thought occurred to me: if a molecules ... temperature is the result of mechanical vibration, could an inverse frequency be applied so that the molecule is slowed (and ...
This item: Vibration of Continuous Systems. Noise and Vibration Control Engineering: Principles and Applications, 2nd Edition ( ... 10.4 Free Vibration Response due to Initial Conditions: Modal Analysis 289. 10.5 Forced Vibration of a Uniform Shaft: Modal ... 10.6 Torsional Vibration of Noncircular Shafts: Saint-Venants Theory 295. 10.7 Torsional Vibration of Noncircular Shafts, ... Broad, up-to-date coverage of advanced vibration analysis by the market-leading author. Successful vibration analysis of ...
This category contains pages that are part of the Mechanical Vibration book. If a page of the book isnt showing here, please ... Category:Book:Mechanical Vibration. From Wikibooks, open books for an open world ... Retrieved from "https://en.wikibooks.org/w/index.php?title=Category:Book:Mechanical_Vibration&oldid=3333577" ... Mechanical Vibration/Distinguishing Mechanical Vibration. *Mechanical Vibration/Second Law of Motion. *Mechanical Vibration/ ...
The aims of the survey were used to describe patterns of exposure to vibration in conjunction with patters of vibration control ... National Hazard Exposure Worker Surveillance: Vibration exposure and the provision of vibration control measures in Australian ... Download National Hazard Exposure Worker Surveillance: Vibration exposure and the provision of vibration control measures in ... Download National Hazard Exposure Worker Surveillance: Vibration exposure and the provision of vibration control measures in ...
Transmissibility is the ratio of output to input. It is defined as the ratio of the force transmitted to the force applied. Transmitted force implies the one which is being transmitted to the foundation or to the body of a particular system.Applied force is the external agent that cause the force to be generated in the first place and be transmitted. Transmissibility: T = o u t p u t i n p u t {\displaystyle T={\frac {output}{input}}} T > 1 {\displaystyle T>1} means amplification and maximum amplification occurs when forcing frequency ( f f {\displaystyle f_{f}} ) and natural frequency ( f n {\displaystyle f_{n}} ) of the system coincide. There is no unit designation for transmissibility, although it may sometimes be referred to as the Q factor. The transmissibility is used in calculation of passive hon efficiency. The lesser the transmissibility the better is the damping or the isolation system. T < 1 {\displaystyle ...
Vibration Cooking raised awareness about Gullah culture. Scholar Anne E. Goldman compared Vibration Cooking with Jessica Harris ... Vibration Cooking: Or, the Travel Notes of a Geechee Girl is the 1970 debut book by Vertamae Smart-Grosvenor and combines ... Fretz, Sada (April 17, 1992). "Vibration Cooking or the Travel Notes of a Geechee Girl". Entertainment Weekly. Retrieved March ... Smart-Grosvenor went on to publish more cookbooks after Vibration Cooking. ...
2 Vibration testing. *3 Vibration analysis *3.1 Free vibration without damping *3.1.1 What causes the system to vibrate: from ... Types of vibration[edit]. Free vibration occurs when a mechanical system is set in motion with an initial input and allowed to ... The vibration test fixture used to attach the DUT to the shaker table must be designed for the frequency range of the vibration ... Vibration testing[edit]. Vibration testing is accomplished by introducing a forcing function into a structure, usually with ...
Hand-arm vibration (HAV) can be caused by operating hand-held power tools, such as road breakers, and hand-guided equipment, ... HSEs vibration website. The law. The Control of Vibration at Work Regulations 2005 require employers to assess and control the ... Vibration. Hand-arm vibration (HAV) can be caused by operating hand-held power tools, such as road breakers, and hand-guided ... Why is dealing with vibration important?. Hand-arm vibration syndrome. HAVS is a painful and disabling condition that affects ...
"Phantom Pocket Vibration Syndrome". Psychology Today. Retrieved 2019-02-11.. *^ a b c d e f g h i j k Deb A (2014). "Phantom ... "Do You Have Phantom Vibration Syndrome?". WebMD. Retrieved 2019-02-10.. *^ "Phantom Phone Vibrations: So Common Theyve ... The earliest published use of the term phantom vibration syndrome dates to 2003 in an article entitled "Phantom Vibration ... Phantom vibration syndrome or phantom ringing syndrome is the perception that ones mobile phone is vibrating or ringing when ...
Vibration, periodic back-and-forth motion of the particles of an elastic body or medium, commonly resulting when almost any ... Vibrations fall into two categories: free and forced. Free vibrations occur when the system is disturbed momentarily and then ... colour: Vibrations and rotations. All molecules have some vibration or rotation energy as a result of chemical bonding, but the ... Explore vibration detection in buildings. Overview of modern technology used to measure vibrations in building materials. ...
To further assess vibration exposure on haul trucks (HTs) and front-end wheel loaders (FELs), follow-up investigations were ... Whole-Body Vibration Exposure Comparison of Seat Designs for Low- and Mid-Seam Shuttle Cars in Underground Coal Mines ... Investigation of Human Body Vibration Exposures on Haul Trucks Operating at U.S. Surface Mines/Quarries Relative to Haul Truck ... Keywords: Exposure limits Front end loaders Haulage trucks Standards Whole-body vibration ...
... hand-arm vibration syndrome (HAVS) and carpal tunnel syndrome (CTS)in the UK. ... Vibration White Finger. Vibration white finger is a disorder of the blood supply to the fingers and hand which can be caused by ... Hand arm vibration - Statistics. Summary. *The number of new cases of Vibration White Finger (VWF) assessed for Industrial ... Vibration White Finger (VWF) is the most commonly prescribed disease under the Industrial Injuries Disability Benefit (IIDB) ...
... the Institute concludes that vibrating hand tools can cause vibration syndrome, a condition also known as vibration white ... Appendix I: Clinical Aspects of Vibration Syndrome. The physiological cause of vibration syndrome is not known.27 Vibration may ... reported the effect of reduced vibration levels on severity and prevalence of vibration syndrome.22 After anti-vibration chain ... Vibration syndrome again. Br Med J 282:1738-39. 1981. * Griffin MJ: Vibration Injuries of the Hand and Arm: Their Occurrence ...
The nomenclature is nSl and nTl, where the letters n and l are related to the surfaces in the vibration at which there is zero ... or torsional vibrations, there is shear but no radial displacements. ... The nomenclature is nSl and nTl, where the letters n and l are related to the surfaces in the vibration at which there is zero ... designated as T modes, or torsional vibrations, there is shear but no radial displacements. ...
... because the vibration was severe. They said it was tire pressure and it was a little better. I didnt mention it at the first ... Is anyone getting vibration at higher speeds? My Camry has almost 10K miles. When I picked the car up back in January, I took ... Vibration? Is anyone getting vibration at higher speeds? My Camry has almost 10K miles. When I picked the car up back in ... Vibration Ive definitely had vibration issues in my 2008 Camry hybrid. The passenger seat (when no one is in it) seems like ...
... vibration plate machines may help overweight or obese people trim their belly fat and achieve long-term weight loss. ... Can Vibration Plates Shake off Weight?. If Used Properly, Vibration Plates May Trim Belly Fat and Spur Weight Loss, Study Says ... "People say vibration machines are fitness for lazy people. It may feel like a short cut, but if its easy, you are not doing it ... In addition, the vibration plate group lost the most belly fat and kept it off for the entire year compared to the other three ...
... the expectations from customers for the noise and vibration performance of personal vehicles such as golf carts, ATVs, and ... Noise Vibration Acoustics Noise, vibration, and harshness standards and regulations Recreational vehicles and equipment Noise, ... This paper provides a sample of some of the efforts that have occurred to further refine and develop the noise and vibration ... Golf Cart Noise and Vibration Troubleshooting 2017-01-1891. Similar to the automotive industry, the expectations from customers ...
Journal of Vibration Engineering & Technologies provides a medium of communication among scientists and engineers engaged in ... Journal of Vibration Engineering & Technologies provides a medium of communication among scientists and engineers engaged in ... Stability Limits for Vertical Vibrations of Paraplegic Subjects while Using Passive Orthosis Authors. *Mahboubeh Keyvanara ... Professor Rao was the founding Editor-in-Chief of the journal of Vibration Engineering and Technologies. He was popularly known ...
An expert is warning about a modern-day phenomenon called phantom vibration syndrome, where people think their mobile phone is ... Rosenberger has published research into phantom vibration syndrome in the journal Computers in Human Behavior, in which he says ... "Through bodily habit, your phone actually becomes a part of you, and you become trained to perceive the phones vibrations as ... 11, 2016 -- An expert is warning about a modern-day phenomenon called phantom vibration syndrome, where people think their ...
Shock and Vibration publishes papers on all aspects of shock and vibration, especially in relation to civil, mechanical and ... Shock and Vibration publishes papers on all aspects of shock and vibration, especially in relation to civil, mechanical and ... Second, the vibration responses of CHW slab under heel-drop and jumping excitations were studied considering the impacts of ... High cycle failure of blades and vanes caused by the vibration is one of the major causes reducing the lifetime of ...
Whether Landy is found guilty of the accusations of "R.G." or not, it is obvious that he has already raped one patient--Brian Wilson, on a very sick, sad emotional level. I think his license to practice should be taken away permanently.. ROSE ANN NEMES. North Hollywood. ...
... 2004-01-0734. Discontinuously reinforced thermoplastic composites are used in a ... In this research, vibration welding is used to join polypropylene reinforced with continuous glass fibers to other ... Lap and T-style joints have been made using an instrumented linear vibration welder. The effects of weld parameters such as ... Citation: Bates, P., Couzens, D., and Mah, J., "Shear Strength of Vibration Welded Lap Joints," SAE Technical Paper 2004-01- ...
Thermal, acoustic, mechanical vibration and electromagnetic compatibility tests will be conducted during Orion qualification. ... Benham Constructors LLC will provide all labor and materials to construct the vibration and acoustic test capability, which ... This procurement specifically addresses the vibration and acoustic capability that will supplement the test capabilities ... build and commission a vibration and acoustic test capability that will support development of the Orion crew exploration ...
Earthquake Engineering and Engineering Vibration is an international journal sponsored by the Institute of Engineering ... Earthquake Engineering and Engineering Vibration. Editors-in-Chief: X.Z. Qi; G.C. Lee ... Get the table of contents of every new issue published in Earthquake Engineering and Engineering Vibration. ... Founded in 2002 and publishing quarterly as of 2007, Earthquake Engineering and Engineering Vibration is an international ...
Finger_Vibration_Security_Springwise1. A new touch authentication system uses an individuals unique finger bone vibrations to ...
Yesterday I started feeling these vibrations also. Its like the vibrations described before but mine buzzes for about a second ... i have a vibration in my heart that makes me cough unproductivly all night long and when i do get to sleep it is only for about ... My vibration/buzzing in my left breast area began a couple of days ago. I have no medical history to speak of - in the past I ... The vibration happens around my ribs on the left side. I do have GERD so after reading some of this, it sounds like it could be ...
Vibration increases the flow of blood to muscles and bones. This boosts the supply of nutrients to these tissues. Vibration may ... The findings on vibration therapy may be particularly important in these cases.. In low-intensity vibration therapy, you stand ... when exposed to low-intensity vibration.. Exposure to low-intensity vibration has been used as a way to prevent bone loss in ... These low-intensity vibration devices gently stimulate muscle and bone when you stand on them. They are not to be confused with ...
Maplesoft Engineering Solutions have the products and expertise to identify and reduce unwanted vibration in your engineering ... Engineering Solutions for Vibration Analysis and Attenuation. Identify and reduce unwanted vibration in your engineering ... Vibration analysis of complex machines requires advanced analytical knowledge and is typically specific to the target system. ... Advanced Symbolic and Numeric Techniques for Machine Vibration Analysis. Download the Whitepaper ...
Raise Vibration, which may be his boldest political statement yet. Born to a black mom and white dad, Kravitz taught his own ... Kravitz is gearing up for an eight-date North American tour later this month in support of "Raise Vibration" before embarking ... His latest call to action is album "Raise Vibration," out Friday, a funky, soulful collection of songs about opening ones ...
The Space Shuttle is not sensitive to the vibrations of its boosters - the white rockets strapped to the orange tank, \[…\] ... Since last fall NASA has been faced with the news that vibrations up to 0.5 G inherent in the design of its solid rocket ... NASA Releases Plan For Ares I Vibration Problem. Since last fall NASA has been faced with the news that vibrations up to 0.5 G ... Passive vibration control systems (think "shock absorbers") could be placed between the first two stages to cut down on the ...
Ground Vibrations Excited by Pile Driving- a case study.. ¨ Hand Tool vibration associated with jack leg drills, jack hammers, ... Human response to blast vibration and air - overpressure: A case study. ¨ Human response to blast-induced vibration and air- ... Vibration control in an opencast mine based on improved blast vibration prediction. ... Minimizing the environmental impact of blast vibrations ¨ Narrow band and broad band active control in an enclosure using the ...
Article: "Powering Pacemakers from Heartbeat Vibrations Using Linear and Nonlinear Energy Harvesters" is published in Applied ... vibrations in the chest cavity that are due mainly to heartbeats. The authors describe the technique and their progress ... developing it in a paper recently published in the AIPs Applied Physics Letters. In their method, vibrations in the chest ... "Heartbeat Vibrations Power Pacemakers." Medical News Today. MediLexicon, Intl., 4 Feb. 2012. Web.. 25 Apr. 2019. ,https://www. ...
What is perceived as "bearing noise" is in fact the audible effect of the vibrations generated directly or indirectly by the ... This is the reason why most of the time noise problems can be considered as vibration problems involving the complete bearing ...
  • Future research is warranted addressing the influence of various protocols of whole-body vibration (i.e., duration, amplitude, frequency) on athletic performance. (nih.gov)
  • Key descriptors of vibration devices include the frequency, the amplitude, and the direction of the vibration movement. (easystand.com)
  • Novotec Medical, Pforzheim, Germany) under 3 different vibration frequency conditions (4-mm amplitude with 10-, 20-, and 27-Hz frequencies) and a control condition (0-mm amplitude with 0-Hz frequency). (humankinetics.com)
  • Study participants received the additional WBVT when standing still on the vibration platform for three 3-min bouts of vibration (20 Hz, 2 mm amplitude), 4 days per week for 4 weeks. (biomedcentral.com)
  • This type of vibration is very rare and will not be present on vehicles with Cardan U-joints. (drivelinesnw.com)
  • Lebedev, M.A., Polyakov, A.V. (1991) [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=2034299&dopt=Abstract Analysis of the interference electromyogram of human soleus muscle after exposure to vibration. (wikidoc.org)
  • This International Standard specifies anatomical and basicentric coordinate systems for biodynamical measurements, for reference purposes in cognate standards development, and for precisely describing human exposure to mechanical vibration and shock. (sis.se)
  • Researchfound that exposure to vibration training can increase vertical jump, which isa key indicator of lower body explosive power. (fit-pro.com)
  • Measurement and calculation of occupational exposure to whole-body vibration with reference to health. (en-standard.eu)
  • This module provides an understanding of human responses to sound and vibration in the environment, and how such environmental stimuli are measured and assessed. (southampton.ac.uk)
  • The Aims of this module are to enable students to comprehend knowledge of human responses to sound and vibration, to understand effects of sound and vibration on human body, and to integrate the knowledge into practical applications. (southampton.ac.uk)
  • We are proud to provide you with: Sound and Vibration Measurement Sales, Rentals and Support Customized training for you and/or your subcontractors. (beautiful-me.nl)
  • Principles of the measurement and evaluation of human vibration exposures. (southampton.ac.uk)
  • Measurement, evaluation, and assessment of the vibration of powered hand-held tools. (southampton.ac.uk)
  • The biodynamic coordinate systems defined in this International Standard can serve as frames of reference for the description and measurement of both translational and rotational vibration and shock motion affecting humans. (sis.se)
  • A vibration measurement makes it is possible to get a good understanding of the condition and functioning of rotating machinery. (nome.fi)
  • By analyzing the measurement data, vibration measurement gives a clear picture of the machine. (nome.fi)
  • A sensible body vibrator has a vibration unit mounted in a human body support such as a bed or a chair and adapted to generate mechanical vibrations upon receipt of a low-frequency signal. (google.com.au)
  • The present invention relates to a sensible body vibrator which produces special effects on the mind and body of a person resting on a body support, such as a chair or a bed, by imparting specific mechanical vibrations to the support. (google.com.au)
  • Have you separated the metal-construction for the camera and for the subject in order to avoid the transfer of the mechanical vibrations? (photomacrography.net)
  • First, a weak laser pulse pushes the nanobeam slightly, creating a single mechanical vibration, and at the same time releases a photon of different frequency. (tudelft.nl)
  • Vibration isolator pads resolve problems with high frequency vibrations, structureborne sound and machine installation while eliminating the need for bolting down. (beautiful-me.nl)
  • Vibration measurements can be used to determine the machine condition or to establish the state of a machine after completion or overhaul. (nome.fi)
  • Vibration measurements make a vital contribution to predictive maintenance and continuity assurance. (nome.fi)
  • To perform the measurements and analysis, vibration sensors need to be carefully placed on specific places of the machine, depending on the application. (nome.fi)
  • Nome uses customized vibration measurements and analysis. (nome.fi)
  • To see if these beneficial effects occur in adolescents with cerebral palsy, researchers measured bone-mineral density and muscle mass after a course of whole body vibration therapy. (eurekalert.org)
  • Researchers used special X-ray tests to measure bone-mineral density and muscle mass before and after the whole body vibration therapy. (eurekalert.org)
  • Understand the principal responses to whole-body vibration (i.e., perception, comfort, motion sickness, performance, and health) and hand-transmitted vibration (i.e., the hand-arm vibration syndrome, including vibration-induced white finger). (southampton.ac.uk)
  • Measure noise and vibration (both whole-body vibration and hand-transmitted vibration) to which people are exposed. (southampton.ac.uk)
  • Standards and Directives for whole-body vibration and hand-transmitted vibration. (southampton.ac.uk)
  • Health effects of hand-transmitted vibration, their diagnosis, and prevention. (southampton.ac.uk)
  • Laboratory demonstrations of human responses to whole-body vibration and hand-transmitted vibration. (southampton.ac.uk)
  • Subjects were tested for baseline performance variables in both the IS and CMJ, and were exposed to either a 30-second bout of whole-body vibration or sham intervention. (nih.gov)
  • Successful vibration analysis of continuous structural elements and systems requires a knowledge of material mechanics, structural mechanics, ordinary and partial differential equations, matrix methods, variational calculus, and integral equations. (wiley.com)
  • Fortunately, leading author Singiresu Rao has created Vibration of Continuous Systems, a new book that provides engineers, researchers, and students with everything they need to know about analytical methods of vibration analysis of continuous structural systems. (wiley.com)
  • Understand the principal methods of measuring and evaluating noise and vibration with respect to human responses. (southampton.ac.uk)
  • Testing of protective sensation and vibration perception are two of the most commonly used non-invasive methods of screening for diabetes-related peripheral neuropathy (DPN). (biomedcentral.com)
  • The aim of this study was to determine the inter- and intra-rater reliability of methods used to test vibration perception and protective sensation in a community-based population of adults with type 2 diabetes. (biomedcentral.com)
  • What are the symptoms of vibration white finger ? (accidentadvicehelpline.co.uk)
  • The symptoms of vibration white finger can be extremely debilitating. (accidentadvicehelpline.co.uk)
  • Daily sessions of whole-body vibration may combat prediabetes in adolescents, dramatically reducing inflammation, average blood glucose levels and symptoms such as frequent urination, researchers report. (medicalxpress.com)
  • Vibration also significantly reduced the mouse's diabetic symptoms of excessive thirst and diluted urine, resulting from excessive urination. (medicalxpress.com)
  • Prior studies in mice have shown that whole body vibration (WBV) can mimic some of the positive effects on health of exercise, and even reverse some of the symptoms of type 2 diabetes. (biotechnews.com.au)
  • Whole-body vibration (WBV) has shown many positive effects on the human body in rehabilitation and clinical settings in which vibration has been used to elicit muscle contractions in spastic and paretic muscles. (humankinetics.com)
  • Vibration Meters and HAVS Measuring Equipment Castle Hand Arm Vibration Meters ensure simple measuring of tool vibration levels Castle are leading manufacturers in Hand Arm Vibration Meters dedied for carrying out assessments to The Control of Vibration at Work Regulations (2005). (beautiful-me.nl)
  • One of the most common cause of driveline vibration are worn U-joints or slip splines, out-of-balance components, yokes out of phase or misaligned angles, approaching critical speed range, and yoke ears that are not concentric with the splines. (drivelinesnw.com)
  • People judge the success or failure of any efforts in noise and vibration control, so their responses should be understood and anticipated. (southampton.ac.uk)
  • MCG researchers reported in the journal Bone in 2010 that daily whole body vibration may help minimize age-related bone density loss. (medicalxpress.com)
  • Hello everybody, How can I minimize the vibrations caused by the mirror or shutter? (photomacrography.net)
  • Although few therapies have proven successful at increasing bone and muscle strength among people with cerebral palsy, one promising approach is whole body vibration therapy, or WBVT. (eurekalert.org)
  • This pilot study was to examine the feasibility and tolerance of whole body vibration therapy (WBVT) for children and adults with moderate severity of cerebral palsy (CP) being graded as levels III or IV on the Gross Motor Function Classification Scale (GMFCS). (biomedcentral.com)
  • In whole body vibration therapy (WBVT), the user stands in a static position or performs some dynamic movements on a device providing vibrations from a few Hz to 50 Hz (Hz, Hertz represents the number of complete up and down movement cycle per second) [ 8 ]. (biomedcentral.com)
  • Whole body vibration (WBV) is a form of treatment that has been shown to have an important role in increasing neuromuscular performance, improving muscular strength, balance, gait mechanics, and quality of life. (practicalpainmanagement.com)
  • Vibration mimics the motion bones experience during exercise when muscles are doing the work. (medicalxpress.com)
  • Metrix provides a vibration sensor for all bearings and a Datawatch monitor. (beautiful-me.nl)
  • It is hypothesized that the whole body vibration program will induce significantly more gain in physical functioning, societal participation, and quality of life in chronic stroke patients, compared with the control group. (clinicaltrials.gov)
  • A team of researchers at the TU Delft and the University of Vienna now demonstrate a new level of quantum control over these vibrations using laser pulses. (tudelft.nl)
  • Oxygenated hemoglobin concentration was higher during the 27-Hz vibration condition than the control and 10-Hz vibration conditions. (humankinetics.com)
  • 05). In contrast, no significant changes in oxygenated hemoglobin concentration were observed in any of the cortical areas during the 10-Hz vibration condition compared with the control condition. (humankinetics.com)
  • There are many appliions and processes that require mounts and vibration control, and AcklandsGrainger carries a wide selection of products to keep items stable. (beautiful-me.nl)
  • Choose from a large selection of vibration isolators including cylindrical, floor mount, hanger mount, or vibration isolator pads to keep motion under control. (beautiful-me.nl)
  • Previous studies have shown the effectiveness of vibration in reducing spasticity in patients after stroke or spinal cord injuries, in stimulating proprioception and subsequently better motor control during walking in patients with stroke and Parkinson disease, and in enhancing muscle activity during walking in patients with spinal cord injuries [ 6 ]. (biomedcentral.com)
  • Welcome to Vibtech Analysis Ltd. - Ontario''s premier Vibration Analysis and Infrared Thermography service provider. (beautiful-me.nl)
  • Such vibration produced at a construction site has the potential, in the worst case, to damage buildings or structures outside the limits of the construction site or to create annoyance or nuisance in nearby buildings. (beautiful-me.nl)
  • Subjects performed the 2 treatment conditions, vibration or sham, in a randomized order. (nih.gov)
  • Subjects were tested immediately following the vibration or sham treatment, as well as 5, 15, and 30 minutes posttreatment. (nih.gov)
  • SI}} '''Tonic vibration reflex''' is a sustained contraction of a [[muscle]] subjected to vibration. (wikidoc.org)
  • Tonic vibration reflex is evoked by placing a vibrator - which in this case is typically an electrical motor with an eccentric load on its shaft - on a muscle's tendon. (wikidoc.org)
  • Return to Tonic vibration reflex . (wikidoc.org)
  • Oneof the neuro-physiologocal responses to WBV training that increases overallstrength gains is the Tonic Vibration Reflex (TVR). (fit-pro.com)
  • Whenusing vibration training, the overall increase in G-Forces applied to thelengthened muscle forces the Tonic Vibration Reflex to work at a much greaterlevel, causing an increase in strength. (fit-pro.com)
  • Previous research among healthy adults, including post-menopausal women, has demonstrated that whole body vibration therapy can promote bone and muscle health. (eurekalert.org)
  • Whole-body vibration training is a method for muscle strengthening that is increasingly used in a variety of clinical situations. (easystand.com)
  • Most authors hypothesize that vibrations stimulate muscle spindles and alpha-motoneurons, which initiate a muscle contraction. (easystand.com)
  • An immediate effect of a non-exhausting vibration session is an increase in muscle power. (easystand.com)
  • Most studies of the longer term use of vibration treatment in various disorders have pursued three therapeutic aims: increasing muscle strength, improving balance, and increasing bone mass. (easystand.com)
  • Vibration technology was originally developed by the former Soviet Union to try to prevent muscle and bone wasting in cosmonauts. (medicalxpress.com)
  • Furthermore, vibration that is provided to the whole body may increase neural drive to the muscles, allowing recruitment of previously inactive motor units [ 8 ] with resulting increase in muscle mass and strength. (biomedcentral.com)
  • The vibration can be provided to the whole body or as a focal vibration to a specific muscle or tendon [ 6 ]. (biomedcentral.com)
  • To assess the effects of whole body vibration therapy, researchers recruited 13 adolescents with cerebral palsy to receive the therapy for nine minutes per day for 20 weeks. (eurekalert.org)
  • The purpose of this study was to investigate the effects of a single bout of whole-body vibration on isometric squat (IS) and countermovement jump (CMJ) performance. (nih.gov)
  • The module also shows: - The main effects of noise and vibration on people. (southampton.ac.uk)
  • Recognise means of preventing, or minimising, undesirable effects of noise and vibration on people. (southampton.ac.uk)
  • Recognise and select appropriate techniques for the investigation of noise and vibration effects. (southampton.ac.uk)
  • Health effects of whole-body vibration. (southampton.ac.uk)
  • Back in 2012, Yu reported at the Third World Congress of Plastic Surgeons of Chinese Descent that whole body vibration could reduce some of the effects of diabetes, such as excess urine production and excessive thirst. (biotechnews.com.au)
  • In the 1960s, vibration training gainedacceptance as a viable modality when Russian Cosmonauts discovered it couldoffset the effects of being in space and facing zero gravity. (fit-pro.com)
  • Assess the severity of noise and vibration to which people are exposed. (southampton.ac.uk)
  • This produces an incredible amount of vibration and seriously increases the risk of developing vibration white finger . (accidentadvicehelpline.co.uk)
  • Yu, also a craniofacial surgeon who studies bone formation , said while it's unclear exactly how vibration produces these desirable results, it seems linked to the impact of movement on bone health . (medicalxpress.com)
  • Next steps include learning more about how vibration produces such desirable results and large-scale clinical studies to see if they hold true in adolescents. (medicalxpress.com)
  • The TPI 9080 is a simple, easy to use, low cost vibration meter that records, analyzes and displays vibration signals at the push of a button. (beautiful-me.nl)
  • SAN FRANCISCO-- A treatment known as whole body vibration therapy significantly increases bone strength among adolescents with cerebral palsy, a new clinical trial from New Zealand shows. (eurekalert.org)