Vibration
Hand-Arm Vibration Syndrome
Raynaud Disease
Hand
Occupational Exposure
Touch
Vocal Cords
Pacinian Corpuscles
Muscle Spindles
Proprioception
Off-Road Motor Vehicles
Neck Muscles
Reflex, Stretch
Basilar Membrane
Phonation
Back
Spectrum Analysis, Raman
Railroads
Paresthesia
Sensation
Motor Vehicles
Protective Devices
Sound
Kinesthesis
Touch Perception
Biomechanical Phenomena
Gloves, Protective
Mechanoreceptors
Reflex, Monosynaptic
Engineering
Tympanic Membrane
Spectrophotometry, Infrared
Sensation Disorders
Electromyography
Kymography
Acoustics
Animal Communication
Peripheral Nervous System Diseases
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)HAVS is typically caused by prolonged exposure to vibrations from hand-held power tools, such as jackhammers, drills, and sanders. The vibrations can cause damage to the blood vessels, nerves, and joints in the hands, leading to the development of HAVS.
There are several risk factors for developing HAVS, including:
1. Prolonged exposure to hand-transmitted vibrations
2. Use of high-vibration tools and equipment
3. Poor tool maintenance and repair
4. Inadequate training on the safe use of tools and equipment
5. Smoking and other cardiovascular risk factors
The symptoms of HAVS can vary in severity and may include:
1. Numbness, tingling, or pain in the hands and fingers
2. Reduced dexterity and grip strength
3. Fatigue and weakness in the hands and arms
4. Tremors or spasms in the hands and fingers
5. Pale or discolored skin on the fingers and hands
6. Decreased sensation in the fingertips
7. Swelling, redness, or warmth in the hands and fingers
If left untreated, HAVS can lead to more severe symptoms, including:
1. Permanent nerve damage
2. Loss of dexterity and grip strength
3. Decreased sensation in the fingertips
4. Finger ulcers and amputations
5. Carpal tunnel syndrome
6. Other neurological disorders
There is no cure for HAVS, but it can be managed with a combination of medical treatment and lifestyle changes. Treatment options may include:
1. Medications to relieve symptoms such as pain and inflammation
2. Physical therapy to improve dexterity and grip strength
3. Lifestyle modifications such as avoiding cold temperatures and taking regular breaks to warm up hands
4. Assistive devices such as gloves, splints, or hand braces
5. Surgery in severe cases to relieve compression on nerves or repair damaged tissue.
Prevention is the best course of action for HAVS, and it involves taking steps to reduce exposure to cold temperatures and other risk factors. Some ways to prevent HAVS include:
1. Using proper protective gear such as gloves, hats, and scarves in cold environments
2. Avoiding prolonged exposure to cold temperatures
3. Taking regular breaks to warm up hands and fingers
4. Exercising regularly to improve circulation and reduce risk factors such as smoking and obesity
5. Maintaining a healthy diet and getting enough sleep.
The exact cause of Raynaud disease is not fully understood, but it is believed to be related to an autoimmune disorder, in which the body's immune system mistakenly attacks healthy tissue. The condition can occur on its own or as a secondary symptom of another underlying medical condition such as scleroderma or rheumatoid arthritis.
Symptoms of Raynaud Disease:
1) Discoloration: Raynaud disease causes the affected areas to turn white or blue in response to cold temperatures or stress.
2) Pain: The constriction of blood vessels can cause pain in the affected areas.
3) Numbness or tingling: The lack of blood flow can cause numbness or tingling sensations in the fingers and toes.
4) Swelling: In severe cases, swelling may occur in the affected areas.
5) Burning sensation: Some people with Raynaud disease may experience a burning sensation in their hands and feet.
Diagnosis of Raynaud Disease:
1) Medical history: A doctor will ask about symptoms, medical history, and any triggers that may cause the condition.
2) Physical examination: The doctor will perform a physical examination to look for signs of discoloration or swelling in the affected areas.
3) Tests: Additional tests such as nailfold capillary microscopy, pulse volume recording and thermography may be ordered to confirm the diagnosis.
Treatment options for Raynaud Disease:
1) Medications: Drugs such as calcium channel blockers, alpha-blockers, and anticoagulants can help to relax blood vessels and improve blood flow.
2) Lifestyle changes: Avoiding triggers such as cold temperatures and taking steps to keep hands and feet warm can help manage the condition.
3) Alternative therapies: Some people with Raynaud disease may find relief with alternative therapies such as acupuncture or biofeedback.
It is important to note that in some cases, Raynaud disease can be a symptom of an underlying autoimmune disorder, such as lupus or scleroderma. If you suspect you have Raynaud disease, it is essential to seek medical attention to rule out any other conditions.
1. Asbestosis: a lung disease caused by inhaling asbestos fibers.
2. Carpal tunnel syndrome: a nerve disorder caused by repetitive motion and pressure on the wrist.
3. Mesothelioma: a type of cancer caused by exposure to asbestos.
4. Pneumoconiosis: a lung disease caused by inhaling dust from mining or other heavy industries.
5. Repetitive strain injuries: injuries caused by repetitive motions, such as typing or using vibrating tools.
6. Skin conditions: such as skin irritation and dermatitis caused by exposure to chemicals or other substances in the workplace.
7. Hearing loss: caused by loud noises in the workplace.
8. Back injuries: caused by lifting, bending, or twisting.
9. Respiratory problems: such as asthma and other breathing difficulties caused by exposure to chemicals or dust in the workplace.
10. Cancer: caused by exposure to carcinogens such as radiation, certain chemicals, or heavy metals in the workplace.
Occupational diseases can be difficult to diagnose and treat, as they often develop gradually over time and may not be immediately attributed to the work environment. In some cases, these diseases may not appear until years after exposure has ended. It is important for workers to be aware of the potential health risks associated with their job and take steps to protect themselves, such as wearing protective gear, following safety protocols, and seeking regular medical check-ups. Employers also have a responsibility to provide a safe work environment and follow strict regulations to prevent the spread of occupational diseases.
1. Fractures: A break in one or more of the bones in the hand or wrist.
2. Sprains and strains: Overstretching or tearing of the ligaments or tendons in the hand or wrist.
3. Cuts and lacerations: Deep cuts or puncture wounds to the skin and underlying tissue.
4. Burns: Damage to the skin and underlying tissue caused by heat, electricity, or chemicals.
5. Amputations: The loss of a finger or part of a finger due to trauma or surgical intervention.
6. Crush injuries: Injuries caused by a heavy object falling on the hand or fingers.
7. Nerve damage: Damage to the nerves in the hand, causing numbness, tingling, or loss of function.
8. Tendon and ligament injuries: Injuries to the tendons and ligaments that connect muscles and bones in the hand.
9. Carpal tunnel syndrome: A common condition caused by compression of the median nerve in the wrist.
10. Thumb injuries: Injuries to the thumb, including fractures, sprains, and strains.
Treatment for hand injuries can vary depending on the severity of the injury and may include immobilization, physical therapy, medication, or surgery. It is important to seek medical attention if symptoms persist or worsen over time, as untreated hand injuries can lead to long-term complications and decreased function.
Types of Finger Injuries
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1. Cuts and Lacerations: These are the most common type of finger injury and can occur when the skin is cut or torn due to a sharp object or blunt force.
2. Sprains and Strains: These injuries occur when the ligaments or muscles in the fingers are stretched or torn, causing pain and swelling.
3. Fractures: Finger fractures can occur when the bones in the finger are broken due to a direct blow or crushing force.
4. Dislocations: This occurs when the bones in the finger are forced out of their normal position.
5. Tendon Injuries: Tendons connect muscles to bones and can become injured due to overuse or sudden strain.
6. Nerve Injuries: Finger injuries can also affect the nerves, causing numbness, tingling, or pain in the fingers.
Causes of Finger Injuries
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1. Accidents: Car accidents, falls, and other accidents can cause finger injuries.
2. Sports: Contact sports such as basketball, football, and hockey can lead to finger injuries due to collisions or falls.
3. Work-related Activities: Jobs that involve manual labor or heavy machinery can increase the risk of finger injuries.
4. Overuse: Repetitive movements or overuse of the fingers can lead to injuries such as tendonitis or sprains.
5. Medical Conditions: Certain medical conditions such as arthritis, gout, and diabetes can increase the risk of finger injuries.
Symptoms of Finger Injuries
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1. Pain: Pain is the most common symptom of finger injuries, ranging from mild to severe.
2. Swelling: Swelling in the affected finger or fingers can occur due to inflammation or bruising.
3. Limited Mobility: Finger injuries can limit mobility and make it difficult to move the fingers or perform everyday activities.
4. Deformity: In severe cases, finger injuries can cause deformities such as bone misalignment or muscle imbalance.
5. Numbness or Tingling: Finger injuries can cause numbness or tingling sensations in the affected fingers.
Treatment of Finger Injuries
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1. Rest: Resting the injured finger and avoiding activities that exacerbate the injury is essential for recovery.
2. Ice: Applying ice to the affected area can reduce swelling and relieve pain.
3. Compression: Wrapping the injured finger with a bandage or compression glove can help reduce swelling and stabilize the joints.
4. Elevation: Elevating the injured hand above heart level can reduce swelling and promote healing.
5. Medications: Over-the-counter pain medications such as ibuprofen or acetaminophen can relieve pain and reduce inflammation.
6. Immobilization: Immobilizing the injured finger with a splint or cast can help promote healing and prevent further injury.
7. Physical Therapy: Gentle exercises and stretches can help improve mobility and strength in the affected finger.
8. Surgery: In severe cases, surgery may be necessary to repair damaged tissues or realign bones.
Prevention of Finger Injuries
-----------------------------
1. Warm-up Exercises: Performing warm-up exercises before engaging in physical activities can help prevent finger injuries by increasing blood flow and flexibility.
2. Proper Equipment: Using proper equipment such as gloves or protective gear can help prevent finger injuries, especially in sports or high-risk activities.
3. Careful Lifting: Lifting objects with proper technique and using the legs instead of the fingers can help prevent strains and sprains.
4. Finger Stretching: Regular stretching exercises can help improve flexibility and reduce the risk of finger injuries.
5. Strengthening Exercises: Strengthening the muscles in the hand and fingers through exercises such as grip strengthening can help prevent injuries.
6. Avoiding Overuse: Taking regular breaks and avoiding overuse can help prevent fatigue and reduce the risk of finger injuries.
Some common causes of paresthesia include:
1. Nerve compression or entrapment: This can occur when a nerve is pinched or compressed due to injury, tumors, or other conditions.
2. Neurodegenerative diseases: Conditions such as multiple sclerosis, Parkinson's disease, and Alzheimer's disease can cause paresthesia by damaging the nerve cells.
3. Stroke or cerebral vasculitis: A stroke or inflammation of the blood vessels in the brain can cause paresthesia.
4. Migraines: Some people experience paresthesia during a migraine episode.
5. Nutritional deficiencies: Deficiencies in vitamins such as B12 and B6, as well as other nutrients, can cause paresthesia.
6. Infections: Certain infections, such as Lyme disease, can cause paresthesia.
7. Trauma: Physical trauma, such as a fall or a car accident, can cause nerve damage and result in paresthesia.
8. Cancer: Some types of cancer, such as lymphoma, can cause paresthesia by damaging the nerves.
9. Autoimmune disorders: Conditions such as rheumatoid arthritis and lupus can cause paresthesia by attacking the body's own tissues, including the nerves.
Paresthesia can be a symptom of an underlying medical condition, so it is important to see a doctor if you experience persistent or recurring episodes of numbness, tingling, or burning sensations. A thorough examination and diagnostic testing can help determine the cause of the paresthesia and appropriate treatment can be recommended.
There are several types of sensation disorders, including:
1. Peripheral neuropathy: This is a condition where the nerves in the hands and feet are damaged, leading to numbness, tingling, and pain.
2. Central sensory loss: This is a condition where there is damage to the brain or spinal cord, leading to loss of sensation in certain parts of the body.
3. Dysesthesia: This is a condition where an individual experiences abnormal sensations, such as burning, stabbing, or crawling sensations, in their body.
4. Hypoalgesia: This is a condition where an individual experiences decreased sensitivity to pain.
5. Hyperalgesia: This is a condition where an individual experiences increased sensitivity to pain.
Sensation disorders can be diagnosed through a combination of physical examination, medical history, and diagnostic tests such as nerve conduction studies or electromyography. Treatment options for sensation disorders depend on the underlying cause and may include medications, physical therapy, or surgery.
Some common causes of sensation disorders include:
1. Diabetes: High blood sugar levels can damage nerves, leading to numbness, tingling, and pain in the hands and feet.
2. Multiple sclerosis: An autoimmune disease that affects the central nervous system, leading to loss of sensation, vision, and muscle weakness.
3. Spinal cord injury: Trauma to the spine can damage the nerves, leading to loss of sensation and function below the level of injury.
4. Stroke: A stroke can damage the nerves, leading to loss of sensation and function on one side of the body.
5. Vitamin deficiencies: Deficiencies in vitamins such as B12 or vitamin D can cause numbness and tingling in the hands and feet.
6. Chronic inflammation: Conditions such as rheumatoid arthritis or lupus can cause chronic inflammation, leading to nerve damage and sensation disorders.
7. Tumors: Tumors can compress or damage nerves, leading to sensation disorders.
8. Infections: Certain infections such as Lyme disease or shingles can cause sensation disorders.
9. Trauma: Physical trauma, such as a fall or a car accident, can cause nerve damage and lead to sensation disorders.
Some common symptoms of sensation disorders include:
1. Numbness or tingling in the hands and feet
2. Pain or burning sensations
3. Difficulty perceiving temperature or touch
4. Weakness or paralysis of certain muscle groups
5. Loss of reflexes
6. Difficulty coordinating movements
7. Dizziness or loss of balance
8. Tremors or spasms
9. Muscle atrophy or wasting away of certain muscles
Treatment for sensation disorders depends on the underlying cause and can include:
1. Medications to control pain, inflammation, or infection
2. Physical therapy to improve strength and coordination
3. Occupational therapy to improve daily functioning
4. Lifestyle changes such as exercise, diet, and stress management
5. Surgery to repair nerve damage or relieve compression
6. Injections of medication or other substances to stimulate nerve regeneration
7. Electrical stimulation therapy to improve nerve function
8. Transcutaneous electrical nerve stimulation (TENS) to reduce pain and inflammation
9. Alternative therapies such as acupuncture or massage to promote healing and relaxation.
Types: There are several types of arm injuries, including:
1. Fractures: A break in one or more bones of the arm.
2. Sprains: Stretching or tearing of ligaments that connect bones to other tissues.
3. Strains: Tears in muscles or tendons.
4. Dislocations: When a bone is forced out of its normal position in the joint.
5. Tendinitis: Inflammation of the tendons, which can cause pain and stiffness in the arm.
6. Bursitis: Inflammation of the fluid-filled sacs (bursae) that cushion the joints and reduce friction.
7. Cuts or lacerations: Open wounds on the skin or other tissues of the arm.
8. Burns: Damage to the skin and underlying tissues caused by heat, chemicals, or electricity.
9. Nerve injuries: Damage to the nerves that control movement and sensation in the arm.
10. Infections: Bacterial, viral, or fungal infections that can affect any part of the arm.
Symptoms: The symptoms of arm injuries can vary depending on the type and severity of the injury. Some common symptoms include pain, swelling, bruising, limited mobility, deformity, and difficulty moving the arm.
Diagnosis: A healthcare professional will typically perform a physical examination and may use imaging tests such as X-rays, CT scans, or MRI to diagnose arm injuries.
Treatment: Treatment for arm injuries can range from conservative methods such as rest, ice, compression, and elevation (RICE) to surgical interventions. The goal of treatment is to relieve pain, promote healing, and restore function to the affected arm.
Peripheral Nervous System Diseases can result from a variety of causes, including:
1. Trauma or injury
2. Infections such as Lyme disease or HIV
3. Autoimmune disorders such as Guillain-Barré syndrome
4. Genetic mutations
5. Tumors or cysts
6. Toxins or poisoning
7. Vitamin deficiencies
8. Chronic diseases such as diabetes or alcoholism
Some common Peripheral Nervous System Diseases include:
1. Neuropathy - damage to the nerves that can cause pain, numbness, and weakness in the affected areas.
2. Multiple Sclerosis (MS) - an autoimmune disease that affects the CNS and PNS, causing a range of symptoms including numbness, weakness, and vision problems.
3. Peripheral Neuropathy - damage to the nerves that can cause pain, numbness, and weakness in the affected areas.
4. Guillain-Barré syndrome - an autoimmune disorder that causes muscle weakness and paralysis.
5. Charcot-Marie-Tooth disease - a group of inherited disorders that affect the nerves in the feet and legs, leading to muscle weakness and wasting.
6. Friedreich's ataxia - an inherited disorder that affects the nerves in the spine and limbs, leading to coordination problems and muscle weakness.
7. Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) - an autoimmune disorder that causes inflammation of the nerves, leading to pain, numbness, and weakness in the affected areas.
8. Amyotrophic Lateral Sclerosis (ALS) - a progressive neurological disease that affects the nerve cells responsible for controlling voluntary muscle movement, leading to muscle weakness, atrophy, and paralysis.
9. Spinal Muscular Atrophy - an inherited disorder that affects the nerve cells responsible for controlling voluntary muscle movement, leading to muscle weakness and wasting.
10. Muscular Dystrophy - a group of inherited disorders that affect the nerve cells responsible for controlling voluntary muscle movement, leading to muscle weakness and wasting.
It's important to note that this is not an exhaustive list and there may be other causes of muscle weakness. If you are experiencing persistent or severe muscle weakness, it is important to see a healthcare professional for proper evaluation and diagnosis.
Vibration
Dongling Vibration
Transmissibility (vibration)
Molecular vibration
Vibration Cooking
Israel Vibration
String vibration
Vibration galvanometer
Vibration fatigue
Torsional vibration
Raise Vibration
Floor vibration
Tail vibration
Vibration calibrator
Vibration isolation
Skate Vibration
Rastaman Vibration
Positive Vibration
Random vibration
Dental vibration appliance
Ion vibration current
Tonic vibration reflex
Vibration-powered generator
Vibration of plates
Streaming vibration current
Vortex-induced vibration
Linear vibration welding
Whole-body vibration
Phantom vibration syndrome
Active vibration control
Vibration Syndrome (83-110) | NIOSH | CDC
Hand arm vibration - Links
What is Vibration Therapy?
Good Vibrations (sex shop) - Wikipedia
Tuning Fork Classroom Demonstration: Sound Vibrations | NIDCD
Contact | Anti-vibration-solutions
Trust.com - vibration feedback steering wheel
Fujitsu Stacking Connector Assures Reliability in High-Vibration Environments - Fujitsu Singapore
NIH scientists discover genetic cause of rare allergy to vibration | National Institutes of Health (NIH)
Vibration Reducing Premium Padded Performance Glove | DEWALT
Availability of NIOSH Criteria Document Hand-Arm Vibration Syndrome
'Good Vibrations' SmashUp (Personalize)' | Ecards | Blue...
News: Sound and Vibration | Brüel & Kjær
Reliabilityweb Vibration Analysis of Wind Turbines
Good Vibrations Review 2012 | Movie Review | Contactmusic.com
LabVIEW Sound and Vibration Toolkit Download - NI
An EPS Control Strategy to Reduce Steering Vibration Associated with Disturbance from Road Wheels
Vibration standard for accelerometers | Kistler
Vibrations: July (2019) | Bartram's Garden
70 MPH Vibration | Cadillac Owners Forum
Noise/ Vibration | Sourcebook | Engineered Systems Magazine
270 CDI Vibration ? | Mercedes-Benz Forum
Vibration Reduction (VR) Lenses for the Nikon D7100 - dummies
Physics Tutorial: Forced Vibration
Good vibrations: A review of vocal expressions of positive emotions | SpringerLink
LORD CREATOR/PRODIGAL CREATOR : Such Is Life - 12" - ROOTS VIBRATION - Forced Exposure
CN211163051U - Cutting device for machining vibration motor shell - Google Patents
Time average triple-image holography for measuring vibration - NASA/ADS
Whole-body vibr2
- During whole-body vibration therapy, your therapist will ask you to stand, sit, or lay on a machine supported by a vibrating platform. (healthline.com)
- According to research published in the Journal of Athletic Training , whole-body vibration therapy may help prevent muscle soreness after exercise. (healthline.com)
Raynaud's3
- In light of a recently completed, comprehensive study, conducted by the National Institute for Occupational Safety and Health (NIOSH), the Institute concludes that vibrating hand tools can cause vibration syndrome, a condition also known as vibration white finger and as Raynaud's phenomenon of occupational origin. (cdc.gov)
- This CIB is limited to a discussion of Secondary Raynaud's phenomenon resulting from the use of vibrating hand tools, referred to as vibration syndrome. (cdc.gov)
- The constellation of vibration-induced signs and symptoms is referred to as hand-arm vibration syndrome (HAVS) (sometimes called Raynaud's phenomenon of occupational origin or vibration white finger disease). (cdc.gov)
Signs and symptoms1
- With continuing exposure to vibration, the signs and symptoms become more severe and the pathology may become irreversible. (cdc.gov)
Exposure6
- However, existing data are insufficient to recommend a safe duration and intensity of exposure or specific work practices that will prevent the occurrence of vibration syndrome. (cdc.gov)
- Through research, NIOSH is seeking additional information about the relationship between exposure duration and vibration syndrome, as well as effective control technologies to prevent vibration syndrome. (cdc.gov)
- To be diagnosed as vibration syndrome, these neurologic symptoms must be more persistent and occur without provocation by immediate exposure to vibration. (cdc.gov)
- In September 1989, CDC's National Institute for Occupational Safety and Health (NIOSH) published Criteria for a Recommended Standard: Occupational Exposure to Hand-Arm Vibration* (1). (cdc.gov)
- The early stages of HAVS are usually reversible if further exposure to vibration is reduced or eliminated. (cdc.gov)
- Criteria for a recommended standard: occupational exposure to hand-arm vibration. (cdc.gov)
Perception threshold1
- Three podiatrists with varying clinical experience tested four- and 10-site, 10 g monofilament and vibration perception threshold (VPT). (nih.gov)
Noise4
- I have a 2002 270cdi when i first start up in the ,morning and drive away i get a lot of vibration and noise in the car, is this normal, It seems to be a bit quieter when warm i have had my car for 4 weeks and still under warranty should i report this? (benzworld.org)
- My 270cdi makes more noise when cold, especially below zero degrees centigrade, and minor vibration which clears after it warms up, this takes about 10 miles. (benzworld.org)
- The vibration motor has a large vibration frequency range, and mechanical noise can be reduced only if the excitation vibration force is properly matched with power. (google.com)
- Strategies to prevent the effects of harmful substances on the individual and to evaluate noise and vibrations as sources of ill-health : report II. (who.int)
Suggests3
- The study suggests that vibration syndrome is severely underreported by workers and health professionals. (cdc.gov)
- A study reported in NeuroRehabilitation suggests that vibration therapy may have short-term benefits for people with Parkinson's disease . (healthline.com)
- This suggests that a normal response to vibration, which does not cause symptoms in most people, is exaggerated in our patients with this inherited form of vibratory urticaria. (nih.gov)
Symptoms2
Demonstrates2
Shock1
- The FCN-280 plug and socket features a 2.0mm contact-wipe mating length that assures high reliability against dust, vibration and shock. (fujitsu.com)
Mechanical1
- It has been reported that mechanical vibrations of the magnetic resonance imaging scanner could produce spurious signal dropouts in diffusion-weighted images resulting in artifactual anisotropy in certain regions of the brain with red appearance in the Directionally Encoded Color maps. (nih.gov)
Measurement3
- Read the latest news about new services, products and everything from the sound and vibration measurement world. (bksv.com)
- Based on your feedback, our sound and vibration platforms have been enhanced to strengthen your measurement processes and to support your preferred way of working. (bksv.com)
- The LabVIEW Sound and Vibration Toolkit provides functions and indicators for audio test, acoustic measurement, and vibration measurement applications. (ni.com)
Incidence2
- Implementation of NIOSH's recommendations should reduce the incidence and severity of vibration syndrome. (cdc.gov)
- The effect of ultrasonic vibration protocols for cast post removal on the incidence of root dentin defects. (bvsalud.org)
Strengthen1
- They began to use vibration therapy to help strengthen astronauts' bone mass and muscles. (healthline.com)
Natural frequency7
- Musical instruments and other objects are set into vibration at their natural frequency when a person hits, strikes, strums, plucks or somehow disturbs the object. (physicsclassroom.com)
- A louder sound is always produced when an accompanying object of greater surface area is forced into vibration at the same natural frequency. (physicsclassroom.com)
- These vibrations set its sound box and the air inside the sound box vibrating at the same natural frequency of 256 Hz. (physicsclassroom.com)
- At ship design stage, empirical formulas are generally used to predict the overall vertical vibration natural frequency of ship to avoid the harmful resonance against main excitation. (srce.hr)
- In this paper, a new empirical formula is given for predicting the natural frequency of ship overall vertical vibration. (srce.hr)
- This new formula is obtained by statistical analysis for large amounts of measured natural frequency results of the ship overall vertical vibration. (srce.hr)
- The comparison with measurements show that the formula proposed in this article is more feasible to use, and also provide a new method to the prediction of natural frequency of the ship overall vertical vibration. (srce.hr)
Stages2
Enables2
- We experimented with this proposed control algorithm using a test vehicle and confirmed that it enables reduced steering vibration associated with disturbance from an unpaved road without sacrificing road information generated by alignment torque. (sae.org)
- Although Vibration Reduction can't work miracles, it enables most people to capture sharper handheld shots in many situations than they otherwise could. (dummies.com)
Reliability1
- 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. (nih.gov)
Sound5
- The LabVIEW Sound and Vibration Toolkit is a software add-on that contains easy-to-use power spectrum, swept sine, and octave analysis VIs. (ni.com)
- You can quickly begin applications with more than 50 ready-to-run LabVIEW examples provided in the LabVIEW Sound and Vibration Toolkit. (ni.com)
- In the case of the guitar string mounted to the sound box, the fact that the surface area of the sound box is greater than the surface area of the string means that more surrounding air particles will be forced into vibration. (physicsclassroom.com)
- This principle of forced vibration explains why demonstration tuning forks are mounted on a sound box, why a commercial music box mechanism is mounted on a sounding board, why a guitar utilizes a sound box, and why a piano string is attached to a sounding board. (physicsclassroom.com)
- Then the tines of the tuning fork are grabbed to prevent their vibration and remarkably the sound of 256 Hz is still being heard. (physicsclassroom.com)
Diabetes1
- 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). (nih.gov)
Test1
- Consequently, many doctors do not perform the appropriate clinical examination and interview to test for vibration syndrome. (cdc.gov)
Tuning fork1
- This same principle of a forced vibration is often demonstrated in a Physics classroom using a tuning fork. (physicsclassroom.com)
Clinical1
- An article published in the journal Clinical Rehabilitation reviewed the research on vibration therapy's effects on muscle strength and bone mass. (healthline.com)
Work2
- How does vibration therapy work? (healthline.com)
- Several guys I work with have 99-01 STS's that all have (had) 60-70 mph vibrations problems. (cadillacforums.com)
Prevent2
- Today, NASA continues to use vibration therapy to help prevent bone loss. (healthline.com)
- Adherence to the control measures and medical monitoring practices recommended in this document should prevent or greatly reduce the potential for vibration-exposed workers to develop HAVS. (cdc.gov)
High3
- Vibration therapy may be dangerous if the intensity of the vibrations is too high. (healthline.com)
- The DEWALT DPG250 Vibration Reducing Premium Padded Glove is a high oscillation vibration reducing glove that features ToughTanned™ leather palm with strategically placed high density memory foam pop outs, making this the "best in field" for mitigating high oscillation vibration when finger dexterity is a must. (dewalt.com)
- The vibration motor is characterized in that a group of adjustable eccentric blocks are respectively arranged at two ends of a rotor shaft, and the exciting force is obtained by utilizing the centrifugal force generated by the high-speed rotation of the shaft and the eccentric blocks. (google.com)
Search1
- Results of search for 'su:{Vibration. (who.int)
Health8
- In 1895, Dr. John Harvey Kellogg implemented vibration therapy in his health practice. (healthline.com)
- More research is needed on the potential health benefits and risks of vibration therapy. (healthline.com)
- What are the health benefits of vibration therapy? (healthline.com)
- Advocates claim that whole-body and localized vibration therapy have a range of health benefits. (healthline.com)
- [3] Initially established with the goal of being a sex-positive and woman-centered alternative to the adult bookstores of the time, Good Vibrations offered sex information and education, featured erotica and books about sexual health and pleasure, [3] and pioneered the concept of the "sex-positive, clean, well-lighted place" to buy sex toys. (wikipedia.org)
- In 1995, Good Vibrations declared May to be National Masturbation Month , [8] to raise awareness of masturbation and sexual health across the country and in response to the firing of then-Surgeon General Joycelyn Elders for saying that masturbation "is part of human sexuality, and perhaps it should be taught. (wikipedia.org)
- Scientists at the National Institutes of Health have identified a genetic mutation responsible for a rare form of inherited hives induced by vibration, also known as vibratory urticaria. (nih.gov)
- An article explaining how vibration from heavy machinery affects operator health, and what can be done to minimize the intensity and frequency of these common events. (cdc.gov)
Control2
- This paper presents a new control strategy for Electric Power Steering (EPS) to reduce steering vibration associated with disturbance from road wheels. (sae.org)
- We have developed a new EPS control strategy that reduces steering vibration associated with disturbance from road wheels without influencing road information generated by alignment torque considering the difference in frequency. (sae.org)
Time2
- If the vibration is at a 'specific' speed as you say, if probably is a resonant vibration that could be almost anything moving at the time acting directly (or even indirectly) on another part of the car. (cadillacforums.com)
- Development of HAVS depends on many factors, including the level of acceleration (vibration energy) produced by the tool, the length of time the tool is used each day, the cumulative number of months or years the worker has used the tool, and the ergonomics of tool use. (cdc.gov)
Hand4
- NIOSH recommends that jobs be redesigned to minimize the use of vibrating hand tools and that powered hand tools be redesigned to minimize vibration. (cdc.gov)
- Temporary tingling or numbness during or soon after use of a vibrating hand tool is not considered vibration syndrome. (cdc.gov)
- During localized vibration therapy, your therapist will place a hand-held vibrating device on certain parts of your body. (healthline.com)
- Vibration is like percussion, but with a flat hand that gently shakes your ribs. (medlineplus.gov)
Sense1
- In 1867, Russian physician and inventor Gustav Zander developed an apparatus that used weights and pulleys to create a sense of vibration. (healthline.com)
Site1
- In addition to itchy red welts at the site of vibration on the skin, people with vibratory urticaria also sometimes experience flushing, headaches, fatigue, blurry vision or a metallic taste in the mouth. (nih.gov)
Workers2
- In addition, many workers are unfamiliar with the potential seriousness of vibration syndrome. (cdc.gov)
- In 1992, Blank sold Good Vibrations to the workers (including herself) incorporating it as a worker cooperative . (wikipedia.org)
Potential1
- To assess potential mast cell involvement in vibratory urticaria, the researchers measured blood levels of histamine during an episode of vibration-induced hives. (nih.gov)
Normal1
- Their findings, published online in the New England Journal of Medicine on Feb. 3, suggest that people with this form of vibratory urticaria experience an exaggerated version of a normal cellular response to vibration. (nih.gov)
Effects4
- Vibration syndrome has adverse circulatory and neural effects in the fingers. (cdc.gov)
- When you use a tripod, Vibration Reduction can have detrimental effects because the system may try to adjust for movement that isn't occurring. (dummies.com)
- You don't need to disable Vibration Reduction when you want to create motion effects by panning the camera, however. (dummies.com)
- To investigate the effects of two ultrasonic vibration protocols for cast post removal (single or double ultrasound units) on the development of defects in root dentin . (bvsalud.org)
Increase2
- Notably, we also observed a small increase in blood histamine levels and a slight release of tryptase from mast cells in the skin of unaffected individuals exposed to vibration," said Hirsh Komarow, M.D., of NIAID's Laboratory of Allergic Diseases, the senior author of the study. (nih.gov)
- Ultrasonic vibration protocols for removing cast posts did not increase the number of dentin defects compared to root canal preparation and obturation and post space preparation steps. (bvsalud.org)
Vertical2
- Some machines produce only vertical vibrations. (healthline.com)
- Nowadays, with the development of modern large-scale ships, the existing empirical formulas are becoming unpractical, some corrections shall be applied on these classical formulas or a new formula is to be derived for the prediction of vertical vibration frequencies of ship. (srce.hr)
Produce1
- Others produce vibrations that go up and down, front and back, and sideways. (healthline.com)
Improve2
- The authors found evidence that vibration therapy can help improve leg muscle strength in older adults. (healthline.com)
- The findings suggest that vibration therapy may help stimulate bone formation and improve bone strength. (healthline.com)
Good7
- Good Vibrations is a sex-positive San Francisco -based [1] corporation selling sex toys and other erotic products. (wikipedia.org)
- Good Vibrations was the first sex-positive and women-friendly store in the United States, founded in 1977 by sex therapist and educator Joani Blank . (wikipedia.org)
- In 2006, Good Vibrations purchased and re-branded the Grand Opening! (wikipedia.org)
- sex shop in Brookline, Massachusetts, as Good Vibrations' first location outside of the San Francisco Bay Area. (wikipedia.org)
- and Babeland interned at Good Vibrations before opening their businesses, [16] [17] and many sex-positive retail toy companies have been inspired by Good Vibrations. (wikipedia.org)
- Good Vibrations" Written by Douglas Wilson & Mike E. Love, Irving Music, Inc (BMI), International Rights Secured. (bluemountain.com)
- Soon Terry is helping promote local bands through his Good Vibrations record shop, discovering the likes of Rudi, the Outcasts and, most notably, the Undertones and their mega-hit Teenage Kicks . (contactmusic.com)
Doctor2
- Talk to your doctor before trying vibration therapy. (healthline.com)
- Your doctor may also recommend doing percussion or vibration. (medlineplus.gov)
Research1
- More research on vibration therapy is needed. (healthline.com)
Press1
- Vibration Reduction engages when you press the shutter button halfway and after you press the button all the way to take the picture. (dummies.com)
Reduce1
- NeuralGlider uses quiet vibrations, like those of IntelliNeedle, to reduce that damage. (nih.gov)
Standard1
- The Type 8076K accelerometer is Kistler's most accurate and repeatable laboratory vibration calibration transfer standard. (kistler.com)