نوع مقاله : مقاله پژوهشی Released under (CC BY-NC) license I Open Access I
نویسندگان
1 گروه آموزشی و حرکات اصلاحی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه علامه طباطبائی
2 کارشناس ارشد فیزیولوژی ورزش، دانشکده علوم ورزشی و تندرستی، دانشگاه شهید بهشتی تهران
3 دانشکده علوم ورزشی و تندرستی، دانشگاه شهید بهشتی تهران
چکیده
هدف: تحقیق حاضر طراحی گردید تا تاثیر مصرف مکمل ال-آرژنین بر متابولیسم چربی و کربوهیدرات حین فعالیت تناوبی با شدت بالا در افراد دارای اضافه وزن را بررسی نماید. روش ها: ده دانشجوی پسر دارای اضافه وزن دو جلسه فعالیت تناوبی شامل ۱۰ تناوب سه دقیقه ای شامل یک دقیقه دویدن با شدت ۱۰۰ درصد VO2max و دو دقیقه ریکاوری فعال با شدت ۴۰ درصد VO2max را با و بدون مکمل اجرا نمودند. هر جلسه ۹۰ دقیقه قبل از فعالیت تناوبی، آزمودنی ها مکمل ال- آرژنین یا دارونما را مصرف نمودند. در هر جلسه قبل، بعد از مصرف مکمل و بلافاصله بعد از اتمام فعالیت ورزشی اسید چرب غیر استریفه، گلوکز، انسولین و تری گلیسرید اندازه گیری شدند. میزان اکسیژن مصرفی و دی اکسید کربن جهت محاسبه اکسیداسیون چربی و کربوهیدرات اندازه گیری شد. نتایج: بین پاسخ گلوکز، انسولین، اسید چرب غیر استریفه، تری گلیسرید و اکسیداسیون چربی به فعالیت ورزشی و مکمل در دو جلسه تفاوت معنی داری وجود نداشت (۰۵/۰P>). با این حال، بین پاسخ اکسیداسیون کربوهیدرات در دو جلسه تفاوت معنی داری مشاهده گردید (۰۵/۰p <). همچنین اکسیداسیون کربوهیدرات و مقدار گلوکز در پاسخ به فعالیت تناوبی بطور معنی داری افزایش داشتند (۰۵/۰p <). نتیجه گیری: بر اساس یافته های تحقیق حاضر می توان نتیجه گیری نمود که در افراد دارای اضافه وزن مکمل دهی ال- آرژنین منجر به افزایش اکسیداسیون کربوهیدرات حین فعالیت ورزشی تناوبی می گردد، اما بر اکسیداسیون چربی تاثیری ندارد.
کلیدواژه‌ها
عنوان مقاله [English]
Effects of L-Arginine supplementation on fat and carbohydrate metabolism during high intensity interval exercise in overweight individuals
نویسندگان [English]
- Minoo Bassami 1
- Banipal Tataroo 2
- Sajad Ahmadizad 3
1 Faculty of Sports Sciences, Allameh Tabataba&#039;i University, Tehran, Iran
2 1. MSc in Exercise physiology, Faculty of Sports Sciences, Shahid Beheshti University, Tehran, Iran
3 Faculty of Sports Sciences, Shahid Beheshti University, Tehran, Iran
چکیده [English]
Purpose: The present study was designed to investigate the effects of L-Arginine supplementation on fat and carbohydrate metabolism during high intensity interval exercise (HIIE) in overweight individuals. Methods: Ten male overweight students performed two HIIE trials including 10 intervals of 3 min encompassed 1 min running at 100% of vVO2max and 2 min active recovery at 40% of vVO2max. In each session subjects consumed either supplement or placebo 90 min prior to exercise. Before and after supplementation and immediately after exercise glucose, insulin, non-esterified free fatty acid (NEFA) and triglyceride were measured. Oxygen consumption and exhaled carbon dioxide were collected to calculate fat and carbohydrate oxidation. Results: There were no significant differences between two trials for glucose, insulin, NEFA, triglyceride and fat oxidation (P>0.05). However, carbohydrate oxidation rate was significantly different between two sessions (p < 0.05). In addition, glucose and carbohydrate oxidation were significantly increased following HIIE irrespective of L-Arginine supplementation (p < 0.05). Conclusions: Based on the findings of present study it could be concluded that L-Arginine supplementation leads to increases in carbohydrate oxidation during HIIE in overweight men, but has no effect on resting at metabolism.
کلیدواژه‌ها [English]
- high intensity interval exercise
- L-Arginine
- fat metabolism
- carbohydrate metabolism
- Lipolysis
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