نتایج جستجو برای: maximal voluntary contraction mvc

تعداد نتایج: 170421  

Journal: :Journal of applied physiology 2005
Sandra K Hunter Ashley Critchlow Roger M Enoka

The purpose was to compare the time to task failure for a sustained isometric contraction performed at a submaximal intensity with the elbow flexor muscles by young and old men who were matched for strength. Eight young men (18-31 yr) and eight old men (67-76 yr) sustained an isometric contraction at 20% of maximal voluntary contraction (MVC) torque until the target torque could no longer be ac...

Journal: :Journal of neurophysiology 2006
Julien Gondin Julien Duclay Alain Martin

The aim of the study was to use combined longitudinal measurements of soleus (SOL) and gastrocnemii evoked V-wave and H-reflex responses to determine the site of adaptations within the central nervous system induced by 5 wk of neuromuscular electrical stimulation (NMES) training of the plantar flexor muscles. Nineteen healthy males subjects were divided into a neuromuscular electrostimulated gr...

2014
Yagesh Bhambhani Jui-Lin Fan Nicolas Place Javier Rodriguez-Falces Bengt Kayser

This study examined the electromyographic, cerebral and muscle hemodynamic responses during intermittent isometric contractions of biceps brachii at 20, 40, and 60% of maximal voluntary contraction (MVC). Eleven volunteers completed 2 min of intermittent isometric contractions (12/min) at an elbow angle of 90° interspersed with 3 min rest between intensities in systematic order. Surface electro...

Journal: :The online journal of recreation and sport 2023

In the present study, we aimed to investigate whether positive emotional stimuli may affect high and low neuroticism individuals’ maximal voluntary contraction (MVC) level of biceps brachii muscle, which is considered a motor representation approach behavior. The sample consisted 36 right-handed individuals (12 females) ranging in age from 18 27 (M= 23.516 [2.120]). Participants completed items...

Journal: :Journal of applied physiology 1997
M D Fowler T W Ryschon R E Wysong C A Combs R S Balaban

A critical requirement of submaximal exercise tests is the comparability of workload and associated metabolic stress between subjects. In this study, 31P-magnetic resonance spectroscopy was used to estimate metabolic strain in the soleus muscle during dynamic, submaximal plantar flexion in which target torque was 10 and 15% of a maximal voluntary contraction (MVC). In 10 healthy, normally activ...

Journal: :Journal of applied physiology 2000
K Roeleveld B G van Engelen D F Stegeman

In this study, the initiation and development of muscle cramp are investigated. For this, we used a 64-channel surface electromyogram (EMG) to study the triceps surae muscle during both cramp and maximal voluntary contraction (MVC) in four cramp-prone subjects and during cramp only in another four cramp-prone subjects. The results show that cramp presents itself as a contraction of a slowly mov...

Journal: :Acta odontologica Scandinavica 2012
Taro Arima Akio Tomonaga Wataru Yachida Tomohiro Tanosoto Morten Haugland Noboru Ohata Peter Svensson

OBJECTIVE To evaluate variation of electromyographic (EMG) activity and sensitivity between different sites of anterior temporalis (AT) muscle. MATERIALS AND METHODS Sixteen healthy subjects (eight men: 28.8 ± 5.2 year old and eight women: 29.1 ± 3.9) participated in one experimental session. EMG activity during masticatory muscle contraction was recorded from nine sites at the AT muscle in a...

2018
Jonathan I Quinlan Constantinos N Maganaris Martino V Franchi Kenneth Smith Philip J Atherton Nathaniel J Szewczyk Paul L Greenhaff Bethan E Phillips James I Blackwell Catherine Boereboom John P Williams John Lund Marco V Narici

Background The ability to rapidly generate and transfer muscle force is essential for effective corrective movements in order to prevent a fall. The aim of this study was to establish the muscle and tendon contributions to differences in rate of torque development (RTD) between younger (YM) and older males (OM). Method Twenty-eight young males (23.9 years ± 1.1) and 22 old males (68.5 years ±...

Journal: :Neuromuscular disorders : NMD 2003
J Visser E Mans M de Visser R M van den Berg-Vos H Franssen J M B V de Jong L H van den Berg J H J Wokke R J de Haan

Context. Maximal voluntary isometric contraction, a method quantitatively assessing muscle strength, has proven to be reliable, accurate and sensitive in amyotrophic lateral sclerosis. Hand-held dynamometry is less expensive and more quickly applicable than maximal voluntary isometric contraction. Objective. To investigate if hand-held dynamometry is as reliable and valid as maximal voluntary i...

Journal: :Crescent Journal of Medical and Biological Sciences 2022

Objectives: The purpose of this work was to explore cervical position sense and electromyographic (EMG) responses muscles during head repositioning movements in students with without upper trapezius muscle trigger points. Materials Methods: Forty-six right-handed men women subjects extremity disorders participated study. maximal voluntary contraction (MVC) measured three time before the fatigue...

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