نوع مقاله : مقاله پژوهشی Released under (CC BY-NC) license I Open Access I
نویسندگان
1 دانشگاه کاشان
2 تربیت بدنی - دانشگاه کاشان
چکیده
هدف: هدف مطالعه حاضر تعیین تأثیر دوزهای مختلف مصرف حاد آب چغندر بر عملکرد بی‌هوازی در افراد تمرین کرده بود.
روش شناسی: در یک طرح آزمایشی تصادفی (هدفمند و در دسترس) متقاطع، دوسوکور و کنترل شده با دارونما، 9 فرد تمرین کرده که حداقل 150 دقیقه در هفته و دست کم به مدت 6 ماه فعالیت بدنی داشتند (سن: 33/1±44/20 سال، شاخص توده بدنی: 27/3± 55/20 کیلوگرم بر متر)، طی 3 هفته به صورت تک جلسه (با دوره پاکسازی یک هفته ای)، داوطلب شرکت در پروتکل شدند. شرکت کنندگان 2 ساعت پس از مصرف70 میلی‌لیتر یا 140 میلی‌لیتر آب چغندر و یا 70 میلی‌لیتر دارونما به صورت حاد، آزمون توان بی‌هوازی مبتنی بر دویدن، آزمون پرش سارجنت، آزمون چابکی ایلی‌نویز و آزمون 36 متر سرعت را با فاصله استراحت 10 دقیقه‌ای تکمیل کردند.
یافته‌ها: نتایج تحلیل داده‌ها نشان داد، مصرف حاد دوزهای 70 و 140 میلی‌لیتر از آب چغندر تاثیر معنی داری بر توان بی‌هوازی، اوج توان، میانگین توان، حداقل توان، اوج نسبی توان، ظرفیت بی‌هوازی و شاخص خستگی نداشت. به علاوه، مصرف حاد مقادیر 70 و 140 میلی‌لیتر از آب چغندر بر سرعت، چابکی و توان انفجاری افراد تمرین کرده نیز تاثیر معناداری نداشت.
نتیجه گیری: نتایج نشان داد که مصرف حاد دوزهای 70 و 140 میلی‌لیتر آب چغندر هیچ مزیت عملکردی برای توان بی‌هوازی و مؤلفه‌های آن، چابکی، سرعت و توان انفجاری در افراد تمرین کرده ایجاد نمی‌کند.
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
The effect of different doses of acute consumption of beet juice supplement on anaerobic performance in trained individual
نویسندگان [English]
- Nafiseh Hassanpour 1
- amir ghanbarpour 1
- Mohammad javad Pourvaghar 2
- Mousa Khalafi 1
1 university of kashan
2 University of kashan
چکیده [English]
Objective: The aim of the present study was to determine the effect of different doses of acute consumption of beetroot juice on anaerobic performance in trained individuals.
Methodology: In a randomized (purposive and accessible) cross-over, double-blind, placebo-controlled experimental design, 9 subjects who were physically active for at least 150 minutes per week and for at least 6 months (age: 20.44±1.33 years, body mass index: 20.55±3.27 kg/m) volunteered to participate in the protocol during 3 weeks in a single session. 2 hours after consuming 70 mL or 140 mL of beetroot juice or 70 mL of placebo, participants completed the anaerobic power test based on running, Sargent jump test, Illinois agility test and the 36-meter speed test with a 10-minute rest interval.
Findings: The results of data analysis showed that acute consumption of 70- and 140-ml doses of beet juice had no significant effect on anaerobic power, peak power, average power, minimum power, relative peak power, anaerobic capacity, fatigue index. In addition, acute consumption of 70 and 140 ml of beetroot juice did not have a significant effect on the speed, agility and explosive power of trained people.
Conclusion: The results showed that the acute consumption of 70- and 140-ml doses of beet juice does not create any functional advantage for anaerobic power and its components, agility, speed and explosive power in trained people.
کلیدواژه‌ها [English]
- red beetroot juice
- nitrate
- acute consumption
- anaerobic performance
- trained subjects
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