نتایج جستجو برای: dynamometer

تعداد نتایج: 2510  

2015
Valérie Decostre Aurélie Canal Gwenn Ollivier Isabelle Ledoux Amélie Moraux Valérie Doppler Christine Anne Mary Payan Jean-Yves Hogrel

BACKGROUND Wrist movements become impaired with disease progression in various neuromuscular disorders. With the development of new therapies, thorough measurement of muscle strength is crucial to document natural disease progression and to assess treatment efficacy. We developed a new dynamometer enabling wrist flexion and extension torque measurement with high sensitivity. The aims of the pre...

Journal: :Journal of applied physiology 2011
Dimitrios E Tsaopoulos Vasilios Baltzopoulos Paula J Richards Constantinos N Maganaris

The purpose of this study was to determine the effect of dynamometer and joint axis misalignment on measured isometric knee-extension moments using inverse dynamics based on the actual joint kinematic information derived from the real-time X-ray video and to compare the errors when the moments were calculated using measurements from external anatomical surface markers or obtained from the isoki...

Journal: :journal of modern rehabilitation 0
zeinab mohammadjannataj msc student, department of physical therapy, school of medical sciences, tarbiat modares university, tehran, iran sedigheh kahrizi assistant professor, department of physical therapy, school of medical sciences, tarbiat modares university, tehran, iran noshin bayat associate professor, department of rheumatology, school of medical sciences, baqiyatallah hospital, baqiyatallah university of medical sciences, tehran, iran

introduction: according to the importance of the back extensor muscle strength in postmenopausal women, this study aimed to determine the relationship between strength and changes in the thickness of back extensor muscles during isometric contraction in healthy and osteoporotic postmenopausal women. material and methods: 42 volunteer postmenopausal women according to their bone mineral density ...

2017
Nor Zainah Mohamad Nur Azah Hamzaid Glen M. Davis Ahmad Khairi Abdul Wahab Nazirah Hasnan

A mechanomyography muscle contraction (MC) sensor, affixed to the skin surface, was used to quantify muscle tension during repetitive functional electrical stimulation (FES)-evoked isometric rectus femoris contractions to fatigue in individuals with spinal cord injury (SCI). Nine persons with motor complete SCI were seated on a commercial muscle dynamometer that quantified peak torque and avera...

Journal: :Medicine and science in sports and exercise 2006
Cornelis J de Ruiter Daniel Van Leeuwen Arjan Heijblom Maarten F Bobbert Arnold de Haan

PURPOSE We hypothesized that the initial rate (first 40 ms) of unilateral knee extensor torque development during a maximally fast isometric contraction would depend on the subjects' ability for fast neural activation and that it would predict bilateral jumping performance. METHODS Nine males (21.8 +/- 0.9 yr, means +/- SD) performed unilateral fast isometric knee extensions (120 degrees knee...

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