Physical Treatments - Specific Physical Therapy
فصلنامه فیزیک درمانی
PTJ
Medical Sciences
http://ptj.uswr.ac.ir
1
admin
2423-5830
2423-5830
10.29252/nrip.ptj
en
jalali
1396
10
1
gregorian
2018
1
1
7
4
online
1
fulltext
en
The Effect of Voluntary and Electrically Stimulated Quadriceps Muscle Fatigue on Postural Control
آسیب شناسی ورزشی و حرکات اصلاحی
Sport injury and corrective exercises
پژوهشي
Research
<div style="text-align: justify;"><strong>Purpose: </strong>The present study aimed to investigate the effect of voluntary and electrically stimulated quadriceps muscle fatigue on postural control.<br>
<strong>Methods:</strong> 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. <br>
<strong>Results: </strong>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).<br>
<strong>Conclusion: </strong>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.</div>
Postural control, Quadriceps fatigue, Voluntary contraction, Electrical Stimulation
225
232
http://ptj.uswr.ac.ir/browse.php?a_code=A-10-353-1&slc_lang=en&sid=1
Mostafa
Sirousi
مصطفی
سیروسی
Pt_Sirousi@yahoo.com