نوع مقاله : مقاله پژوهشی Released under CC BY-NC 4.0 license I Open Access I
نویسندگان
1 دانشجوی دکتری فیزیولوژی ورزش دانشگاه تربیت دبیر شهید رجایی تهران، دانشکدة تربیت بدنی و علوم ورزشی، تهران، ایران
2 دانشیار فیزیولوژی ورزش دانشگاه تربیت مدرس تهران، گروه فیزیولوژی ورزش تهران، ایران
3 کارشناس ارشد تربیت بدنی و علوم ورزشی دانشگاه خوارزمی تهران، دانشکدة تربیت بدنی و علوم ورزشی تهران، ایران
چکیده
هدف تحقیق پیش رو تعیین اثر کافئین بر بازگشت به حالت اولیه در فعالیت ارگومتر روئینگ بود. به همین منظور، 9 پاروزن نخبۀ مرد (سن 1/1±3/18سال، قد 1/7±7/185سانتی‌متر، وزن 6/8±9/77 کیلوگرم و چربی بدن 5/1±4/8 درصد) پس از فعالیت 2000 متر ارگوروئینگ، 3 یا 6 میلی‌گرم بر کیلوگرم وزن بدن (mg.kg-1) کافئین یا دارونما مصرف کردند. آنها فعالیت را 24 ساعت بعد تکرار کردند. کافئین اثری بر توان (18/307 برای 6mg.kg-1، 00/301 برای 3mg.kg-1و 25/319 برای دارونما) و زمان (5/418 ثانیه برای 6mg.kg-1، 12/421 ثانیه برای 3mg.kg-1و 27/413 ثانیه برای دارونما) نداشت. تفاوت لاکتات در دو دوز مصرف کافئین و دارونما تفاوت معناداری نشان نداد. همچنین تفاوت معناداری در کراتین کیناز در دو دوز کافئین و دارونما پس از پیش‌آزمون و پیش از پس‌آزمون مشاهده نشد. بررسی نتایج فردی بهبود زمان اجرا در پنج نفر و تخریب آن را در چهار نفر پس از مصرف 6mg.kg-1 کافئین نشان داد. همچنین دو ورزشکار بهبود اجرا و هفت ورزشکار تخریب آن را پس از مصرف mg.kg-1 3 کافئین به ازای مصرف دارونما نشان دادند. نتایج نشان داد که کافئین بر بازگشت به حالت اولیه در فعالیت ارگومتر در شرایط تحقیق حاضر اثری ندارد.
کلیدواژه‌ها
عنوان مقاله [English]
Effect of Caffeine on Recovery from Ergometer Rowing
نویسندگان [English]
- Mohammad Ali Gharaat 1
- Hamid Agha Alinejad 2
- Leila Eidi Abarghani 3
- Yaeghoub Mehri Alvar 1
1
2
3
چکیده [English]
The purpose of this study was to determine the effects of caffeine on recovery in 2000-m rowing ergometer performance. Nine elite male rowers (age18.3 ± 1.1 year, height 185.7 ± 7.1 cm, weight 77.9 ± 8.6 kg, and body fat 8.4 ± 1.5 %) in three different trials consumed 3mg.kg-1, 6mg.kg-1of caffeine and placebo, in random order after performing 2000m ergo rowing and repeated the same trial 24hours later. There were no significant differences among the two caffeine doses and placebo in stroke rate, power, and time. Also the Values of ∆ blood lactate concentration in three treatments did not show significant differences. Creatine Kinase levels did not show significant difference in three treatments (placebo: 873.3±210.7 U.l-1, 3mg: 905.9±191.2 U.l-1, and 6mg: 933.6±228.5 U.l-1). Individual evaluation showed worse time in 5 athletes and better time in 4 athletes for 6mg.kg-1 ingestion compared to Placebo. Also 2 athletes were better and 7 of them were worse after ingesting 3mg.kg-1. It was concluded that caffeine ingestion had no effect on recovery (according to observeing no differences between CK and LT levels and performance in different ingestions) between training or trials for 2000m ergo rowing under the conditions of this study
کلیدواژه‌ها [English]
- caffeine
- Ergogenic
- Junior Rowers
- Muscle Endurance
- recovery
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