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، جلد ۹، شماره ۱، صفحات ۳۵-۵۱
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| عنوان فارسی |
تأثیر خستگی عملکردی بر الگو و شروع فعالیت الکترومایوگرافی منتخبی از عضلات کمری- لگنی و پرونئال تکواندوکاران زن نخبه |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
The Effect of Functional Fatigue on Pattern and Onset of Electromyography Activation of Selective Lumbo-Pelvic and Peroneal Muscles in Elite Female Taekwondo Athletes |
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| چکیده انگلیسی مقاله |
Fatigue causes afferent feedback disorder, muscle timing disorder and injury in organs. In this study, the effect of a functional fatigue protocol on pattern and onset of electromyography activity of selective lumbo-pelvic and peroneal muscles. 13 healthy female taekwondo athletes (mean age 20.92±1.25 years, weight 53.69±4.17 kg, height 166.92±5.00 m and activity experience 7.92±1.75 years) took part voluntary in this study. Firstly, the onset of EMG activity of erector spinae, quadratus lumborum, gluteus medius and peroneus lunges muscles was recorded during single leg jump-landing. Then, subjects participated in the fatigue protocol and EMG activity of muscles was recorded again. The analysis of variance showed significant differences in onset of muscle activity in pretest and posttest (P≤0.0005), but this pattern showed no significant differences in pretest and posttest. Paired t test showed a faster onset of each four muscles after fatigue; that was significant in quadratus lumborum, gluteus medius and peroneus lunges. But it was not significant in erector spine. As a result, central nervous system is more sensitive in fatigue condition when it predicts more injury risk and employs muscles sooner so that it can protect joints in high-risk conditions. So it attempts to recall motor strategies to prevent probable injuries sooner. |
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| کلیدواژه‌های انگلیسی مقاله |
elite taekwondo athlete,functional fatigue,lumbo-pelvic muscles,onset of muscle activity,peroneal muscles |
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| نویسندگان مقاله |
Mona Mirjani |
MCs of Sport Injury and Corrective Exercises, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
Foad Seidi |
Associate Professor, Department of Sport Medicine, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran.
Hooman Minoonejad |
Assistant Professor, Department of Sport Medicine, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran.
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| نشانی اینترنتی |
https://sshr.ut.ac.ir/article_62870_c418f9d4a77bc6f7a4415344f120c817.pdf |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
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