نشریه علوم زیستی ورزشی

تأثیر یک دورۀ تمرین اینتروال و تیپر پلکانی بر شاخص‌های عملکردی رت‌های نر در حال بالیدگی

نوع مقاله : مقاله پژوهشی

نویسندگان

شادمهر هریجانی میردار 1
اکرم ارزانی 2
احسان عرب زاده 2
فروغ نیستانی 2
مینا باغبانی 2
سجاد احمدی 2

1 دانشیار گروه فیزیولوژی ورزشی، دانشکدۀ تربیت بدنی و علوم ورزشی دانشگاه مازندران-مازندران-ایران

2 کارشناسی‌ارشد فیزیولوژی ورزشی، دانشکدۀ تربیت بدنی و علوم ورزشی دانشگاه مازندران-مازندران –ایران

https://doi.org/10.22059/jsb.2015.57287
چکیده
هدف این پژوهش بررسی تأثیر یک دورۀ تمرین اینتروال و تیپرپلکانی بر تغییرات وزنی و عملکرد استقامتی رت‌های نر در حال بالیدگی بود.
در این مطالعۀ تجربی، 40 سر موش­ صحرایی ویستار نر سه‌هفته­ای به‌طور تصادفی به گروه­های کنترل و تمرین تقسیم شدند. گروه تمرین پس از پایان دورۀ شش‌هفته­ای تمرین اینتروال فزاینده به سه گروه تیپر سه‌هفته­ای کاهش شدت، تواتر و تکرار تقسیم شدند. وزن و شاخص­های عملکردی ارزیابی شدند. یافته­های پژوهش با استفاده از آنالیز واریانس دوطرفه و آزمون LSD در سطح 05/0α≤ تجزیه‌وتحلیل شد.
نتایج نشان داد تفاوت معنا­داری بین زمان­ خستگی گروه­های مختلف تیپر با یکدیگر (001/0P≤) و هفته­های تیپر با دورۀ اینتروال (008/0P≤) وجود دارد. تیپر شدت با کاهش 57/28 درصدی در شدت تمرین، بهترین میانگین زمان خستگی، مسافت طی‌شده در آزمون و عملکرد (Pri) را نسبت به سایر گروه­­ها داشت. همچنین مسافت طی‌شده در آزمون و زمان واماندگی در هفتۀ دوم تیپر به حداکثر خود رسید.
براساس نتایج پژوهش حاضر، تیپر پلکانی شدت موجب افزایش 13/52 درصدی عملکرد استقامتی می­شود. همچنین دو هفته کاهش بار تمرینی آثار هم‌افزایی مؤثرتری با مداخله بر تغییرات وزنی و زمان واماندگی در پی دارد.
 

کلیدواژه‌ها

تیپر پلکانی
تمرین اینتروال
عملکرد استقامتی

عنوان مقاله English

The Effect of a Period of Interval Training and Step Taper on Performance Indexes in Male Rats during Puberty

نویسندگان English

Shadmehr Harijani Mirdar 1
Akram Arzani 2
Ehsan Arabzadeh 2
Forough Neyestani 2
Mina Baghbani 2
Sajad Ahmadi 2
1 Associate Professor, Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Mazandaran, Mazandaran, Iran
2 MSc of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Mazandaran, Mazandaran, Iran
چکیده English

The aim of this study was to investigate the effect of a period of interval training and step taper on weight changes and endurance performance in male rats during puberty. In this experimental study, 40 male Wistar rats (3 weeks old) were randomly divided into exercise and control groups. After 6 weeks of incremental interval training, exercise group was divided in to 3 groups of 3-week taper with Intensity, frequency and repetition. Weight and performance indexes were evaluated. Data were analyzed using two-way ANOVA and LSD test at α≤0.05. The results showed a significant difference in fatigue time among all different taper groups (P≤0.001) and also between taper weeks and interval period (P≤0.008). Intensity taper with 28.57% reduction in intensity had the best average fatigue time, distance traveled in the test and performance (Pri) compared with other groups. Also, the distance traveled in the test and exhaustion time reached their maximum in the second week of taper. The results of the present study suggested that intensity step taper increased endurance performance by 52.13%. Also, 2 weeks of reduction in exercise load can have more effective synergic effects through an intervention in weight changes and exhaustion time.   
 

کلیدواژه‌ها English

endurance performance
interval training
step taper

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  • تاریخ دریافت 09 آذر 1392
  • تاریخ بازنگری 05 شهریور 1393
  • تاریخ پذیرش 15 دی 1393

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