نوع مقاله : مقاله پژوهشی Released under (CC BY-NC) license I Open Access I
نویسندگان
1 فیزیولوژی ورزشی، تربیت بدنی و علوم ورزشی، دانشگاه تبریز، تبریز، ایران
2 گروه آموزشی فیزیولوژی ورزشی، دانشکده تربیت بدنی ، دانشگاه تبریز
3 گروه آموزشی فیزیولوژی ورزشی، دانشکدد تربیت بدنی ، دانشگاه تبریز
4 مدیریت تربیت بدنی، دانشگاه علوم پزشکی تبریز
چکیده
هدف: هدف از مطالعة حاضر تعیین تأثیر دو هفته فعالیت ورزشی تناوبی با و بدون محدودیت جریان خون بر سطوح سرمی هورمون رشد،1 IGF- و لاکتات پسران فوتبالیست نوجوان آماتور است.
روش‌شناسی:در یک طرح نیمه تجربی 24 پسر فوتبالیست نوجوان آماتور با میانگین و انحراف معیار سن 79/0± 79/17 سال، قد 37/3± 41/175 سانتی‌متر و وزن 49/4± 12/69 کیلوگرم به صورت داوطلبانه انتخاب و براساس VO2max به دو گروه12 نفره تمرین تناوبی با و بدون محدودیت جریان خون تقسیم شدند. پروتکل تمرینی تحقیق حاضر با شدت 75-60 درصدMHR چهار جلسه در هفته (در هفته اول سه تکرار و هفته دوم چهار تکرار مسافت400 متر) اجرا شد. استراحت بین تکرارها 80-60 ثانیه بود. فشار کاف برای پایین تنه در وهله های فعالیت 140 تا 180 میلی‌متر جیوه تنظیم شد. نمونه‌های خونی به میزان 5 سی سی در دو مرحله قبل از شروع پروتکل تمرینی و 48 ساعت بعد از آخرین جلسه تمرینی برای اندازه گیری شاخصهایGH ، IGF-1 سرمی اخذ شد. مقادیر لاکتات نیز بلافاصله بعد از آزمون رست گرفته شد. از آزمون تی مستقل و وابسته در سطح معناداری 05/0≥α استفاده شد.
یافته‌ها: نتایج تحقیق افزایش معنی‌دار GH (p=0/016) و لاکتات (p=0/000) سرمی را در گروه تمرین تناوبی با BFR در مقایسه با گروه تمرین بدون BFR نشان داد. اما در شاخص IGF-1 سرمی بین دو گروه تفاوت معنی داری مشاهده نشد (05/ 0
نتیجه‌گیری: اجرای تمرینات تناوبی با BFR در مقایسه با تمرینات صرف تناوبی احتمالاً می تواند در افزایش شاخصهای آنابولیکی پسران نوجوان فوتبالیست موثرتر باشد.
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
The effect of two weeks of intermittent training with and without blood flow restriction on some anabolic indices in amateur adolescent football players
نویسندگان [English]
- Javad Vakili 1
- Saeed Nikookheslat 2
- Mohammad Tanhaei 3
- maryam akbari 4
1 Sports Physiology, Physical Education and Sport Sciences, University of Tabriz, Tabriz, Iran
2 Department of exercise physiology, Faculty of physical education and sport sciences, University of Tabriz, Tabriz, Iran
3 Department of exercise physiology, Faculty of physical education and sport sciences, University of Tabriz, Tabriz, Iran
4 , physical education office, Tabriz university of medicine sciences. Tabriz, Iran
چکیده [English]
Objective: Training with blood flow restriction likely have a profound effect on growth related hormonal indices. The purpose of this study was to determine the effect of two weeks intermittent training with and without blood flow restriction on serum levels of growth hormone, IGF-1 and Lactate in amateur adolescent football players.
Methodology: Therefor 24 amateur adolescent football players with age of 17/79±0/79 years-old, height of 175/41 ± 3/37 cm and weight of 69/12±4/49 kg were voluntarily selected and divided based on VO2max into two groups of control and experimental groups. The training protocol was performed in treadmill with intensity of 60-75% MHR, four sessions per week, in 400 meters, three sets in first week and four sets in second week. Recovery intervals was 60-80 seconds between exercise intervals. The thigh cuff pressure was set between 140 and 180 mmHg. Blood samples were gathered in two phases before of training protocol and 48h after last session of training for analyses of serum GH, IGF-1 levels and lactate immediately after the RAST anaerobic test. Independent and dependent T-test was used for data analyzing and significant level was set at p<0/05.
Results: There was a significant increase in serum GH (p=0/016) and lactate (p=0/000) in BFR group. But there weren’t any difference between two group in serum IGF-1 after BFR and nonBFR training (P >0/05).
Conclusion: it is concluded that intermittent trainings with BFR probably be more effective in enhancing adolescent’s growth indicators than intermittent training.
کلیدواژه‌ها [English]
- Blood Flow Restriction
- Growth Hormone
- IGF-1
- Interval training
- amateur adolescent football players
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