Corneal biomechanical properties in healthy children measured by corneal visualization scheimpflug technology | BMC...
We evaluated the corneal biomechanical properties in a population of healthy children in China. As far as we know, this is the first report of quantitative assessment of the corneal biomechanics in children population using CST. We used the newly updated CST software, which provided two more parameters (A1DA and A2DA) than previous versions. This helped to measure corneal deformation more comprehensively. We also assessed the symmetry of corneal biomechanics between the both eyes and found obviously interocular symmetry in SE, CCT, IOP, and corneal biomechanics in healthy children eyes. We also found that several CST biomechanical parameters in children are modified by CCT and IOP, while age, SE, and sex exert little influence on the CST measurements in this population.. Our observations of interocular symmetric biometry were consistent with previous studies [19-21]. Using ORA, Zheng et al.  demonstrated an obvious symmetry of CH and CRF ...https://bmcophthalmol.biomedcentral.com/articles/10.1186/s12886-017-0463-x
FRI0586-HPR Biomechanical mechanisms underlying treatment effects of exercise therapy in patients with knee osteoarthritis:...
Methods Data were used from a randomized controlled trial (NTR1475) in which two exercise programs of 12 weeks were compared. One hundred forty nine patients with knee OA, who completed a 12-week exercise program, were measured at baseline and at 6-, 12- and 38-week follow-up. Generalized Estimating Equations (GEE) analyses were used to determine longitudinal associations of changes in biomechanical functions (upper leg muscle strength, knee joint proprioception, self-reported knee instability and knee flexion and extension range of motion) with changes in pain severity (numeric rating scale) and activity limitations (WOMAC, physical function and Get up and go test) over time (i.e. baseline, 6-, 12- and 38-week follow-up). Univariable and multivariable associations, analyzing all biomechanical functions together, were performed.. ...http://ard.bmj.com/content/72/Suppl_3/A573.3
Background. Tibial pilon fractures lead to complicated therapeutic problem. Application in these cases of external fixators which are composed of an active articulated joint hinge imitating movement in the region of upper ankle joint, which allows plantar and dorsal flexion, leads to functional treatment of distal tibia fractures.. Aim. The aim of the study was to present the four year experience with an evaluating biomechanical parameters, medical properties and clinical usefulness of the external fixator Dynastab-S in the treatment of tibial pilon fractures.. Material. Observations were based on patients hospitalized in Orthopedic and Rehabilitation Department of Medical University of Warsaw in a period from March 2000 to August 2004. The average period of observations was 29 months. Inclusion criteria were based on the algorithm which was created in our department.. Results. The assessment of biomechanical parameters of bone-fixator ...http://bjjprocs.boneandjoint.org.uk/content/88-B/SUPP_I/164.5
An investigation into the variable biomechanical responses to antipronation foot orthoses - University of Salford...
Antipronation foot orthosis are commonly used by health care professionals to treat a variety of lower limb conditions thought to be caused by excessive foot pronation. However, despite their widespread use, laboratory based research indicates that antipronation foot orthosis cause variable joint moment/motion biomechanical responses. If a specific biomechanical response is required to treat a specific clinical condition, it follows that practitioners cannot tailor foot orthosis confidently to alleviate symptoms thought to be associated with excessive pronation. A conceptual framework representing a biomechanical system of foot function was proposed to explain how external forces, foot structure, and neuromuscular factors cause these variable joint moment/motion responses to foot orthosis. Two studies (study 1 & study 2) sought to understand how external forces influenced joint moment/motion responses. Study ...http://usir.salford.ac.uk/40365/
Human Spine Model | Spinal Model | Flexible Spine Model | Orthopedic Spine Model | Chiropractic Spine Model | Muscled Spine...
At ShopAnatomical.com, we have a wide range of anatomy Spine Models available. Our prices on Spine Models are guaranteed to be the lowest and our Spine Models are of the high quality.http://www.shopanatomical.com/Spine_Models_Anatomical_Model_Anatomy_Model_s/34.htm
Regression relationships of landing height with ground reaction forces, knee flexion angles, angular velocities and joint...
Ground reaction forces (GRF), knee flexion angles, angular velocities and joint powers are unknown at large landing heights, which are infeasible for laboratory testing. However, this information is important for understanding lower extremity injury mechanisms. We sought to determine regression relationships of landing height with these parameters during landing so as to facilitate estimation of these parameters at large landing heights. Five healthy male subjects performed landing tasks from heights of 0.15-1.05 m onto a force-plate. Motion capture system was used to obtain knee flexion angles during landing via passive markers placed on the lower body. An iterative regression model, involving simple linear/exponential/natural logarithmic functions, was used to fit regression equations to experimental data. Peak GRF followed an exponential regression relationship (R2 = 0.90-0.99, p , 0.001; power = 0.987-0.998). Peak GRF slope and impulse also had an exponential relationship (R2 = 0.90-0.96, p ...http://scholarbank.nus.edu.sg/handle/10635/25327
Popliteus Tendinitis: Biomechanical Factors and Conservative Treatment
Author: Thomas Michaud. Title: Popliteus Tendinitis - Biomechanical Factors and Conservative Treatment. Summary: The popliteus muscle originates from the lateral aspect of the distal femur and inserts along the posterior aspect of the proximal...http://www.dynamicchiropractic.com/mpacms/dc/article.php?id=56278
Linear, Cubic and Quintic Coordinate-Dependent Forces and Kinematic Characteristics of a Spring-Mass System - pdf descargar
Linear, Cubic and Quintic Coordinate-Dependent Forces and Kinematic Characteristics of a Spring-Mass System. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.http://libros.duhnnae.com/2017/jun7/149819231095-Linear-Cubic-and-Quintic-Coordinate-Dependent-Forces-and-Kinematic-Characteristics-of-a-Spring-Mass-System.php
Histogenics Announces Publication Of Additional Biomechanical Data From Human Engineered Cartilage Testing | BioSpace
Histogenics Announces Publication Of Additional Biomechanical Data From Human Engineered Cartilage Testing - read this article along with other careers information, tips and advice on BioSpacehttps://www.biospace.com/article/releases/histogenics-announces-publication-of-additional-biomechanical-data-from-human-engineered-cartilage-testing-/
Bachelor B.E. Mechanical Engineering:Computer Aided Mechanical Design Patiala Thapar University | Emagister
Engineering. Science and Industry. B.E. Mechanical Engineering:Computer Aided Mechanical Design in Punjab. B.E. Mechanical Engineering:Computer Aided Mechanical Design. First Year: Semester I Mathematics I Engineering graphics Computer Programming Physics Solid Mechanics Communication Skills First Year: Semester-II Mathematics II Manufacturing Processhttp://www.emagister.in/b_e_mechanical_engineering_computer_aided_mechanical_design_courses-ec2655587.htm
Vibration Analysis of Quartz Yaw-Rate Sensor to Reduce Mechanical Coupling
For a yaw-rate sensor (gyroscope), the reduction of mechanical coupling phenomenon is a key technology for achieving high performance. We analyze the phenomenon with a combination of two models, (1) a static model of a bending sensor beam with a geometrically asymmetric cross section, and (2) a dynamic model of two degrees of freedom system. This analysis proves that an origin of the mechanical coupling is a static tiny displacement due to the asymmetry of the cross section, and the tiny displacement amplified extremely by resonance phenomenon. The relationships between the extent of mechanical coupling, the asymmetric ration, and a resonant frequency differential ration, are also obtained. The relationships give a basic guideline for yaw-rate sensor design and fabrication.http://www.nsti.org/procs/MSM2001/7/T51.04
Patent US3418896 - Reflective markers and reflective elements therefor - Google Patents
Dec. 3l, 1968 D. c. RIDEOUT 3,418,896 REFLECTIVE MARKERS AND REFLECTIVE ELEMENTS THEREFOR Filed Feb. 3, 1967 INVENTOR Donald C. Rideau? ATTORNEY United States Patent O 3,418,896 REFLECTIVE MARKERS AND REFLECTIVE ELEMENTS THEREFOR Donald C. Rideout, Huntingdon, Pa., assignor to Prismo Safety Corporation, Huntingdon, Pa., a corporation of Pennsylvania Filed Feb. 3, 1967, Ser. No. 613,878 10 Claims. (Cl. 94-1.5) ABSTRACT F THE DISCLOSURE The invention relates to reflective elements which are flat on their upper and lower surfaces and which have vertical side walls covered by a plurality of Small glass spheres partially embedded in the vertical side walls, the width of the flat surfaces being at least twice the thickness of the elements and the thickness being in the order of ls-l/z and the width not exceeding 1". The reflective elements can be incorporated into reflective markers for improved night-time retroreflectivity especially in rainy weather. The elements can be incorporated into a hot ...http://www.google.com/patents/US3418896?dq=7,403,220
Leg stiffness measures depend on computational method
Leg stiffness is often computed from ground reaction force (GRF) registrations of vertical hops to estimate the force-resisting capacity of the lower-extremity during ground contact, with leg stiffness values incorporated in a spring-mass model to describe human motion. Individual biomechanical characteristics, including leg stiffness, were investigated in 40 healthy males. Our aim is to report and discuss the use of 13 different computational methods for evaluating leg stiffness from a double-legged repetitive hopping task, using only GRF registrations. Four approximations for the velocity integration constant were combined with three mathematical expressions, giving 12 methods for computing stiffness using double integrations. One frequency-based method that considered ground contact times was also trialled. The 13 methods thus defined were used to compute stiffness in four extreme cases, which were the stiffest, and most compliant, consistent and variable subjects. All ...http://kth.diva-portal.org/smash/record.jsf?pid=diva2:693319
Biomechanics and Motor Control of Human Movement - David A. Winter - Google Books
The classic book on human movement in biomechanics, newly updated Widely used and referenced, David Winter's Biomechanics and Motor Control of Human Movement is a classic examination of techniques used to measure and analyze all body movements as mechanical systems, including such everyday movements as walking. It fills the gap in human movement science area where modern science and technology are integrated with anatomy, muscle physiology, and electromyography to assess and understand human movement. In light of the explosive growth of the field, this new edition updates and enhances the text with: Expanded coverage of 3D kinematics and kinetics New materials on biomechanical movement synergies and signal processing, including auto and cross correlation, frequency analysis, analog and digital filtering, and ensemble averaging techniques Presentation of a wide spectrum of measurement and analysis techniques Updates to all existing chapters Basic physical and physiological ...https://books.google.com/books?id=_bFHL08IWfwC&source=gbs_similarbooks_r&hl=en
Vicon Motion Capture Center | Facilities | Ashton Graybiel Spatial Orientation Laboratory | Brandeis University
The Vicon MX Motion Capture System provides the ability to track the movement of subjects in a variety of experiments. This system allows for a passive motion capture of reflective markers on the subject. The elimination of wires and battery packs from an individual leads to a more natural motion to be captured and analyzed.. The eight-camera array in an 8-ft x 12-ft space gives the ability for 3D video rendering and analysis; in addition the system has a real-time feedback option for the experimenter and subject.. The Vicon Motion Capture System is utilized in experiments ranging from balance studies to limb movement and gait studies. ...http://www.brandeis.edu/graybiel/facilities/vicon.html
Virtual Poster Session | Force and Motion
Altered gait biomechanics associated with pediatric obesity may increase the risk of musculoskeletal injury/pathology during physical activity and/or diminish a child's ability to engage in sufficient physical activity. The biomechanical mechanisms responsible for the altered gait in obese children are not well understood, particularly as they relate to increases in adipose tissue. The purpose of this study was to investigate the role of adiposity (i.e. body fat percentage, BF%) on lower extremity kinematics, muscle force requirements and their individual contributions to the acceleration of the center of mass (COM) during walking. We scaled a musculoskeletal model to the anthropometrics of each participant (n=14, 8-12 years old, BF%: 16-41%) and generated dynamic simulations of walking to predict muscle forces and their contributions to the acceleration of the COM. Muscle force output was normalized to muscle mass. BF% was correlated with average knee flexion angle during ...http://www.forceandmotion.org/posters/recent?page=8
NIOSHTIC-2 Publications Search - 20034332 - Breathing and biomechanical indices of musculoskeletal strain in repetitive...
Ergonomic models of musculoskeletal strain in computer work have focused primarily on biomechanical indices (e.g. key force, keystroke repetition, work posture); relatively little attention has been given to psychophysiological indices (e.g. hyperventilatory responses to mood disturbances). This report explores the relationship between psychophysiological and biomechanical factors with right-handhttps://www.cdc.gov/niosh/nioshtic-2/20034332.html
IJMS | Free Full-Text | Mechanobiology of Platelets: Techniques to Study the Role of Fluid Flow and Platelet Retraction Forces...
Coagulation involves a complex set of events that are important in maintaining hemostasis. Biochemical interactions are classically known to regulate the hemostatic process, but recent evidence has revealed that mechanical interactions between platelets and their surroundings can also play a substantial role. Investigations into platelet mechanobiology have been challenging however, due to the small dimensions of platelets and their glycoprotein receptors. Platelet researchers have recently turned to microfabricated devices to control these physical, nanometer-scale interactions with a higher degree of precision. These approaches have enabled exciting, new insights into the molecular and biomechanical factors that affect platelets in clot formation. In this review, we highlight the new tools used to understand platelet mechanobiology and the roles of adhesion, shear flow, and retraction forces in clot formation.http://www.mdpi.com/1422-0067/12/12/9009
Effect of dog breed and body conformation on vertical ground reaction forces, impulses, and stance times - Zurich Open...
TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents ...http://www.zora.uzh.ch/id/eprint/49770/
Static Equipment Mechanical Design Engineer - Dubai
I am Sharma Rajendran having 6+ years Experience in Mechanical Design of Pressure Vessels, Silos, Reactors, Storage tanks, Receivers and Columns as per ASM...http://gulfnews-jobs.com/item/static-equipment-mechanical-design-engineer-32685.html
Biomechanical, Rehabilitative, & Motor Frames by Jennifer Fortuna on Prezi
Biomechanical disability is often related to the inability to perform a specific task due to a restriction in joint ROM, strength or endurance interferes with biomechanical function. Common conditions include orthopedic injury, edema, pain, skin tightness (burns/scars), spasticity, or low muscle tone. Also, extended immobilization (disuse). OT goals are developed in regard to the task, situation, and context ...https://prezi.com/9cgj6lyohcc8/biomechanical-rehabilitative-motor-frames/
Locomotor function of forelimb protractor and retractor muscles of dogs: evidence of strut-like behavior at the shoulder |...
A well-supported model of terrestrial locomotion envisions limbs functioning as spring-loaded inverted struts (Gray, 1944; Gray, 1968; Alexander, 1984; Blickhan, 1989; Blickhan and Full, 1993). During running at constant speed on level surfaces, the ground reaction force vector is thought to be directed more or less through the point of rotation of the limb on the body such that there is little or no moment at the joint and, therefore, little or no external work done at the proximal joints during a running step (Winter, 1983; Carrier et al., 1998; Roberts and Belliveau, 2005). Instead, the muscles that extend the distal limb joints appear to produce the external work of the step. These distal muscles are thought to contract isometrically and, together with their in-series tendons, to function as springs to store and recover elastic strain energy during the support phase of a running step (Cavagna et al., 1964; Cavagna et al., 1977; Alexander, 1984; Roberts et al., 1997). In this way, the cost of ...http://jeb.biologists.org/content/211/1/150
Patent US7822513 - System and method for monitoring a mobile computing product/arrangement - Google Patents
Described is a mobile computing arrangement having a sensor detecting first motion data of the arrangement and a memory to store second motion data, the second motion data including a threshold value. A comparison module compares the first motion data to the second motion data and an actuation module initiates an action for the arrangement when the first motion data exceeds the threshold value.http://www.google.com/patents/US7822513?dq=6106459
Biomechanical aspects of aquatic therapy: A literature review on application and methodological challenges - Kaenz
The application of aquatic therapy for health and rehabilitation purposes has been promoted for centuries, below we show the biomechanical fundamentals.https://www.kaenz.com/biomechanical-aquatic-therapy/
Patent US20120259431 - Terrain adaptive powered joint orthosis - Google Patentsuche
A powered device augments a joint function of a human during a gait cycle using a powered actuator that supplies an augmentation torque, an impedance, or both to a joint. A controller estimates terrain slope and modulates the augmentation torque and the impedance according to a phase of the gait cycle and the estimated terrain slope to provide at least a biomimetic response. The controller may also modulate a joint equilibrium. Accordingly, the device is capable of normalizing or augmenting human biomechanical function, responsive to a wearer's activity, regardless of speed and terrain, and can be used, for example, as a knee orthosis, prosthesis, or exoskeleton.http://www.google.de/patents/US20120259431