اثر تمرین اختصاصی در شرایط هایپوکسی و نورموکسی بر تغییرات عامل القایی هایپوکسی (HIF-1α) گویچه‌های سفید دوندگان استقامت تیم ملّی

نوع مقاله : علمی - پژوهشی

نویسندگان

1 دانشگاه مازندران- دانشکده تربیت بدنی و علوم ورزشی

2 دانشگاه مازندران

چکیده

هدف پژوهش حاضر بررسی اثرات تمرین­های اختصاصی در شرایط هایپوکسی و نورموکسی بر تغییرات عامل القایی هایپوکسی دوندگان استقامت تیم ملّی بود.8 دونده مرد (سن1/3±4/24سال،قد2/4±5/180سانتی-متر،وزن4/3±7/66کیلوگرم، BMI0/1±5/20کیلوگرم بر متر مربع) همراه با تمرین­های اختصاصی به روش R2M در ارتفاع بالا و پایین به صورت داوطلبانه در این پژوهش شرکت کردند. از آزمودنی­ها آزمون 3000متر و نمونه­های خونی قبل و 24ساعت بعد از هر مسابقه انجام شد. برنامه تمرینی شامل تمرینات تداومی، تناوبی، هوازی و مقاومتی بود. دوندگان، به طور میانگین 16جلسه در هفته به مدت 81 روز زندگی در ارتفاع، تمرین در ارتفاع و تمرین در پایین در تمرینات حضور یافتند. برای سنجش میزان تغییرات HIF-1α، هر بار از ورید آنتی­کوبیتال هر یک از آزمودنی­ها در حالت ناشتا، به صورت نشسته و حین استراحت 5 سی­سی خون گرفته شد. برای تحلیل داده­ها از تحلیل واریانس اندازه­گیری مکرر در سطح معنی­داریP≤0.05 استفاده شد. اثر زمان منجر به کاهش معناداری زمان دوی 3000متر از قبل تا بعد از تمرین شد. تغییرات معناداری در HIF-1α مشاهده نگردید (P≤0.05). به طور کلی به نظر می­رسد استفاده از تمرین­های اختصاصی در شرایط هایپوکسی و نورموکسی از طریق تغییرات مستقل از بیان­ژن HIF-1 α در طول تمرین با تغییر در متابولیسم سلولی، موجب کاهش زمان دوی 3000 متر در ارتفاعات پایین­تر می­گردد.    

عنوان مقاله [English]

The Effect specific trainings in condition Hypoxia and normoxy on hypoxia induce factor (HIF1- α) changes in the White blood cells Distance national Team Athletics

چکیده [English]

The aim of this study was to investigate the Effect specific trainings in condition Hypoxia and normoxy on changes HIF in the White blood cells Distance national Team Athletics. eight endurance male runners (age: 24.4±3.1yrs, height: 180.5±4.2cm, weight: 66.7±3.4 kg, Body mass index: 20.5±1.0) with specific training R2M method in high and low altitude were volunteered to participate in present study. Exhaustive testing 3000 m, blood sample were taken before and 24hour after compotation. Training program was include same continues, interval, aerobic and resistance training. Runners performed 16 training session per week at long time 81 days live high-train high and low participate in period training. For calculate change level HIF1- α, each time take was 5cc blood from the antecubital vein in the fasting, sitting and resting state. Data were analyzed by analysis of variance (P≤0.05). the time effect due to significant decrease in 3000 m running time, but the differences in HIF were not significant (P≤0.05). This study suggests that using specified training in hypoxia and normoxy with changes independed of HIF expression in the long training with change cells metabolism led to decreases 3000 m running time in lower altitude.

کلیدواژه‌ها [English]

  • hypoxy induce factor
  • Hypoxia
  • normoxia
  • Endurance performance
  • endurance runner

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سابقه مقاله

  • تاریخ دریافت: 28 مرداد 1395
  • تاریخ بازنگری: 30 خرداد 1403
  • تاریخ پذیرش: 11 دی 1399
  • تاریخ اولین انتشار: 11 دی 1399
  • تاریخ انتشار: 01 آذر 1396

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