تأثیر 8 هفته تمرین تناوبی با شدت متوسط بر ترکیب بدنی و استقامت قلبی-تنفسی دانش آموزان دختر نوجوان چاق
محورهای موضوعی : فیزیولوژی ورزش و علم تمرین
1 - اداره آموزش و پرورش، منطقه جواد آباد، ورامین، تهران، ایران.
کلید واژه: توان هوازی, ترکیب بدن, تمرین تناوبی, چاقی, دختران نوجوان,
چکیده مقاله :
هدف از این تحقیق، مطالعه تأثیر هشت هفته تمرینات تناوبی با شدت متوسط بر ترکیب بدنی و استقامت قلبی- تنفسی دانش آموزان دختر چاق دوره متوسطه دوم بود. بنابراین 20 دختر دانش آموز چاق، به طور داوطلبانه در این تحقیق شرکت کردند. پس از کسب رضایتنامه از والدین، آزمودنی ها به صورت تصادفی در دو گروه تمرین (10 نفر) و کنترل (10 نفر) قرار گرفتند. آزمودنی های گروه کنترل به زندگی عادی خود ادامه داده و گروه تمرینی تحت مداخله تمرین تناوبی با شدت متوسط قرار گرفتند. دوره تمرینی به مدت هشت هفته و با توالی سه جلسه در هفته انجام گرفت. پروتکل تمرینی شامل دو نوبت با شش تکرار بود. آزمودنی ها در نوبت اول 6 زمان 30 ثانیه ای را با 70 درصد ضربان قلب بیشینه اجرا کردند و بین وهله ها، 30 ثانیه استراحت فعال (دویدن با 50 درصد ضربان قلب بیشینه) داشتند. قبل و پس از هشت هفته، ترکیب بدنی با دستگاه آنالیز بدن و توان هوازی از طریق آزمون 1600 یارد اندازه گیری شد. تمام تحلیل‌ها با آزمون کواریانس و با در نظر گرفتن معنی‌داری کمتر از 05/0 انجام گرفت. نتایج نشان داد که درصد چربی و شاخص توده بدن در گروه تمرین کاهش معنی‌داری؛ و در مقابل، توان هوازی و توده خالص بدنی افزایش معنی‌داری داشت. با توجه به نتایج به نظر می رسد تمرین تناوبی با شدت متوسط در بهبود ترکیب بدنی و توان هوازی دختران نوجوان چاق موثر باشد.
The purpose of this research was to study the effect of eight weeks of moderate intensity interval training on the body composition and cardio-respiratory endurance of obese adolescent female students. Therefore, 20 obese female students voluntarily participated in this research. After obtaining consent from the parents, the subjects were randomly assigned to two equal training (n=10) and control groups (n=10). The subjects of the control group continued their normal life and the training group underwent moderate intensity interval training intervention. The training course was conducted for eight weeks with three sessions per week. The training protocol consisted of two sessions with six repetitions. In the first round, the subjects performed 6 times of 30 seconds with 70% of the maximum heart rate and had 30 seconds of active rest (running with 50% of the maximum heart rate) between the times. Before and after eight weeks, body composition was measured with a body analyzer and aerobic power through a 1600-yard test. All the analyzes were done with the covariance test and considering significance less than 0.05. The results showed that the percentage of fat and body mass index in the training group decreased significantly; on the other hand, aerobic power and lean body mass increased significantly. According to the results, it seems that intermittent training with moderate intensity is effective in improving the body composition and aerobic capacity of obese adolescent girls.
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