اثر پیش آماده سازی ایسکمی برعملکرد بی هوازی دختران ورزشکار

نوع مقاله : علمی - پژوهشی

نویسندگان

1 دانشکده تربیت بدنی و علوم ورزشی، دانشگاه حکیم سبزواری، سبزوار، ایران

2 دانشکده تربیت بدنی و علوم ورزشی، دانشگاه صنعتی شاهرود، شاهرود، ایران

چکیده

هدف: پیش آماده سازی ایسکمی، ممکن است اثرات مثبت بر عملکرد افراد داشته باشد که منجر به افزایش ظرفیت اجرا
در ورزش شود. لذا هدف از این پژوهش، بررسی اثر پیش آماده سازی ایسکمی بر عملکرد بی هوازی دختران ورزشکار بود.
روش ها: شانزده دختر )میانگین سن 60 / 0± 78 / 20 سال و وزن 03 / 10 ± 94 / 55 کیلوگرم( در یک طرح متقاطع تصادفی
در دو گروه تجربی )پیش آماده سازی شامل چهار دور پنج دقیقهای انسداد با پنج دقیقه جریان مجدد، سپس اجرای دو
آزمون وینگیت( و کنترل )پیش آماده سازی نمایشی شامل چهار دور پنج دقیقهای بستن کاف بدون اعمال فشار، سپس
اجرای دو آزمون وینگیت( قرار گرفتند. میزان درک فشار، بلافاصله پس از آخرین مرحله ایسکمی و هر آزمون وینگیت
اندازه گیری شد. دادهها با استفاده از آزمون تحل ل وار انس با اندازه گ ریهای مکرر و آزمون تعقیبی LSD در سطح معنی ی ی ی
داری 05 / p>0 تحلیل شد.
نتایج: نتایج نشان داد که توان اوج در گروه تجربی نسبت به کنترل در آزمون دوم وینگیت به طور غیرمعنی دار بیشتر
بود ) 05 / p>0 (. بین شاخصهای میانگین و حداقل توان و ضربان قلب تمرین، بین دو گروه مختلف کنترل و تجربی تفاوت
معنی داری وجود نداشت ) 05 / p<0 (. درک فشار در گروه تجربی، به طور معنی داری نسبت به گروه کنترل کمتر بود
.)p>0/05(
نتیجه گیری: بر اساس نتایج این پژوهش، اجرای پیش آماده سازی ایسکمی، با شدت و مدت اعمال شده در این پژوهش،
تأثیری بر برونده توان بی هوازی در دختران ورزشکار نداشت. به نظر میرسد که پیش آماده سازی ایسکمی، قبل از
حرکات توانی در دانشجویان دختر ورزشکار باید با شدت و مدت بیشتر و در اندامهای با حجم عضلانی بزرگتر اعمال شود،
تا اثرات بیشتری به دنبال داشته باشد.

کلیدواژه‌ها


عنوان مقاله [English]

The effect of ischemic preconditioning on the of anaerobic performance in female student's athletes

نویسندگان [English]

  • Akram Sharifi Moghadam 1
  • Faezeh Naserkhani 2
1 1Faculty of Physical Education and Sports Science, Hakim Sabzevari University, Sabzevar, Iran
2 Faculty of Physical Education and Sports Science, Shahroud University of Technology, Shahrood, Iran
چکیده [English]

Abstract
Purpose: Recently, effect of ischemic preconditioning (IPC) in sports as an ergogenic aid is taken into consideration. IPC may have positive effects on the athletic performance of individuals, which leads to increased capacity in exercise. So, the aim of this study was to investigate the effect of IPC on anaerobic performance of female student›s athletes.
Methods: For this purpose, in a randomized crossover design, sixteen females with a mean age of 0.60±20.78 years and weight 10.03±55.94 kg assigned into two conditions: Experiment (preconditioning included four set of five-minute occlusion-reperfusion, with five minutes reperfusion, then performing two Wingate tests) and Control (sham preconditioning included four set of five-minutes closing cuff without pressure, then performing two Wingate tests). The rest period between two Wingate tests was two minutes. Borg scale were measured immediately after the last stage of ischemia and Wingate test. Data were analyzed using repeated measures analysis of variance and LSD test significance level was P <0.05.
Results: The results showed that the peak power increased in experimental condition compared to the control, but this increase was not statistically significant (P>0.05). Also, there was no significant difference in average power, mean power and heart rate between control and experimental condition (P>0.05). IPC lead to significant decrease in the perceived exertion in experimental condition (p˂0.05).
Conclusion: Results showed that the IPC has no effect on power output in female student›s athletes. It seems, IPC before power tasks in female student›s athletes, must be with more intensity and time and in big organs with a larger muscle size to have more effects.


کلیدواژه‌ها [English]

  • Post-Activation Potentiation
  • Ischemia
  • Athlete female
  • Anaerobic performance
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