Effect of L-Glutamine Supplementation on Electromyographic Activity of the Quadriceps Muscle Injured By Eccentric Exercise

Publish Year: 1392
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_IJBMS-16-6_012

تاریخ نمایه سازی: 4 آبان 1400

Abstract:

  Objective(s): The purpose of the present study was to examine the effects of L-glutamine on electromyographic (EMG) activity of the quadriceps muscle injured by eccentric exercise (EE).   Materials and Methods: Seventeen healthy men (age: ۲۲.۳۵±۲.۲۷ yr; body mass: ۶۹.۹۱±۹.۷۸ kg; height: ۱۷۷.۰۸±۴.۳۲ cm) were randomly and double-blind study with subjects assigned to either an L-glutamine supplementation (n=۹) or placebo (n=۸) group. The subjects in two groups were asked to take three times during a week for ۴ weeks. Each subject was screened for dietary habits before inclusion into the study. Participants performed ۶ set to exhaustion eccentric leg extensions at ۷۵% of ۱RM and rest intervals were ۳ min among sets. Pain Assessment Scale (PAS), EMG activity and range of motion (ROM) measurements were taken before exercise protocol and ۲۴ and ۴۸ hr afterwards. Results: There was no statistically significant difference between groups in perceived muscle soreness (SOR), ROM and EMG activity (P < ۰.۰۵). Conclusion: The results indicate that L-glutamine supplementation has no significant effect on muscle injury markers in between groups, although glutamine supplementation attenuated delayed onset muscle soreness (DOMS) effects in sup group.

Keywords:

Eccentric exercise Electromyographic activity L- glutamine Muscle injured

Authors

Farhad Rahmani Nia

Department of Exercise Physiology Faculty of Physical Education and Sport Science, University of Guilan, Rasht, Iran

Esmail Farzaneh

Departments of Physical Education and Sport Sciences, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran

Arsalan Damirchi

Department of Exercise Physiology Faculty of Physical Education and Sport Science, University of Guilan, Rasht, Iran

Ali Shamsi Majlan

Department of Exercise Physiology Faculty of Physical Education and Sport Science, University of Guilan, Rasht, Iran

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