The Effect of Voluntary and Electrically Stimulated Quadriceps Muscle Fatigue on Postural Control

Purpose: The present study aimed to investigate the effect of voluntary and electrically stimulated quadriceps muscle fatigue on postural control. Methods: Sixteen healthy young males participated in this quasi-experimental study. All subjects performed two fatiguing exercises with equal intensity o...

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Main Authors: Mostafa Sirousi, Mohammad Akbari, Zahra Teymuri, Asghar Akbari
Format: Article
Language:English
Published: Negah Institute for Scientific Communication 2018-01-01
Series:Physical Treatments
Subjects:
Online Access:http://ptj.uswr.ac.ir/article-1-339-en.html
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author Mostafa Sirousi
Mohammad Akbari
Zahra Teymuri
Asghar Akbari
author_facet Mostafa Sirousi
Mohammad Akbari
Zahra Teymuri
Asghar Akbari
author_sort Mostafa Sirousi
collection DOAJ
description Purpose: The present study aimed to investigate the effect of voluntary and electrically stimulated quadriceps muscle fatigue on postural control. Methods: Sixteen healthy young males participated in this quasi-experimental study. All subjects performed two fatiguing exercises with equal intensity of isometric maximal voluntary contraction: Voluntary (VOL) and Electrical Stimulation (ES). The Centre of Pressure (CoP) displacement in the VOL and ES exercises were measured before and after conducting each protocol. The CoP displacement variables were analyzed by repeated measures ANOVA in SPSS. The Newman-Keuls post hoc test was used to determine the mean score differences.  Results: The VOL and ES fatiguing exercises had significant effects on mean scores of sway area, mean velocity, anteroposterior, and mediolateral displacements. There was a significant difference between VOL and ES fatigue on postural control (P<0.05). Conclusion: The VOL fatiguing exercise impaired postural control more significantly than the ES fatiguing exercise. The disturbance of postural control in quadriceps muscle fatigue is related to the nature of the muscle contractions rather than the magnitude of strength loss.
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spelling doaj.art-d405dfad6f6c43d1b58036c5ebfa5be02022-12-22T01:41:21ZengNegah Institute for Scientific CommunicationPhysical Treatments2423-58302018-01-0174225232The Effect of Voluntary and Electrically Stimulated Quadriceps Muscle Fatigue on Postural ControlMostafa Sirousi0Mohammad Akbari1Zahra Teymuri2Asghar Akbari3 Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran. Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran. Department of Physiotherapy, Faculty of Rehabilitation Sciences, Zahedan University of Medical Sciences, Zahedan, Iran Department of Physiotherapy, Faculty of Rehabilitation Sciences, Zahedan University of Medical Sciences, Zahedan, Iran; Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran. Purpose: The present study aimed to investigate the effect of voluntary and electrically stimulated quadriceps muscle fatigue on postural control. Methods: Sixteen healthy young males participated in this quasi-experimental study. All subjects performed two fatiguing exercises with equal intensity of isometric maximal voluntary contraction: Voluntary (VOL) and Electrical Stimulation (ES). The Centre of Pressure (CoP) displacement in the VOL and ES exercises were measured before and after conducting each protocol. The CoP displacement variables were analyzed by repeated measures ANOVA in SPSS. The Newman-Keuls post hoc test was used to determine the mean score differences.  Results: The VOL and ES fatiguing exercises had significant effects on mean scores of sway area, mean velocity, anteroposterior, and mediolateral displacements. There was a significant difference between VOL and ES fatigue on postural control (P<0.05). Conclusion: The VOL fatiguing exercise impaired postural control more significantly than the ES fatiguing exercise. The disturbance of postural control in quadriceps muscle fatigue is related to the nature of the muscle contractions rather than the magnitude of strength loss.http://ptj.uswr.ac.ir/article-1-339-en.htmlpostural controlquadriceps fatiguevoluntary contractionelectrical stimulation
spellingShingle Mostafa Sirousi
Mohammad Akbari
Zahra Teymuri
Asghar Akbari
The Effect of Voluntary and Electrically Stimulated Quadriceps Muscle Fatigue on Postural Control
Physical Treatments
postural control
quadriceps fatigue
voluntary contraction
electrical stimulation
title The Effect of Voluntary and Electrically Stimulated Quadriceps Muscle Fatigue on Postural Control
title_full The Effect of Voluntary and Electrically Stimulated Quadriceps Muscle Fatigue on Postural Control
title_fullStr The Effect of Voluntary and Electrically Stimulated Quadriceps Muscle Fatigue on Postural Control
title_full_unstemmed The Effect of Voluntary and Electrically Stimulated Quadriceps Muscle Fatigue on Postural Control
title_short The Effect of Voluntary and Electrically Stimulated Quadriceps Muscle Fatigue on Postural Control
title_sort effect of voluntary and electrically stimulated quadriceps muscle fatigue on postural control
topic postural control
quadriceps fatigue
voluntary contraction
electrical stimulation
url http://ptj.uswr.ac.ir/article-1-339-en.html
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