نوع مقاله : مقاله پژوهشی
نویسندگان
1 .دانشجوی کارشناسی ارشد فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه حکیم سبزواری، سبزوار، ایران
2 استادیار گروه فیزیولوژی ورزشی،دانشکده علوم ورزشی، دانشگاه حکیم سبزواری، سبزوار، ایران
3 استاد فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه حکیم سبزواری، سبزوار، ایران
چکیده
زمینه و هدف: در مطالعه حاضر تأثیر دو شیوه تمرینی استقامتی تناوبی شدید و مقاومتی دایره‌ای بر عملکرد ریوی و ترکیب بدن در دختران دارای اضافه وزن بررسی شد. روش تحقیق: از بین دختران داوطلب واجد شرایط 45 نفر انتخاب و به صورت تصادفی در سه گروه تمرین مقاومتی دایره‌ای، تناوبی شدید و کنترل جای گرفتند. گروه‌های تمرینی 8 هفته، هفته‌ای 3 جلسه به تمرین پرداختند. تمرین مقاومتی در 7 ایستگاه، 2 نوبت، 15-8 تکرار و شدت 85-65 درصد یک تکرار بیشینه و تمرین تناوبی به صورت دویدن‌های 2 دقیقه‌ای با شدت 95-85 درصد ضربان قلب بیشینه، 11-8 تکرار و استراحت فعال (40-30 درصد ضربان قلب بیشینه) اجرا گردید. قبل و بعد از دوره تمرینی، شاخص‌های تنفسی، ترکیب بدن، قدرت و استقامت عضلانی و حداکثر اکسیژن مصرفی اندازه‌گیری شدند. نتایج با آزمون‌های تحلیل واریانس یک‌سویه، تعقیبی LSD و t وابسته استخراج گردید و سطح معنی‌داری 0/05>p در نظر گرفته شد. یافته‌ها: بین تأثیر دو نوع تمرین بر بازدم با فشار در اولین ثانیه (FEV1) ، ظرفیت حیاتی با فشار (FVC)، نسبت بازدم با فشار در ثانیه اول بر ظرفیت حیاتی با فشار (FEV1/FVC) و جریان بازدمی 75- 25 درصد (FEF 25- 75%)، وزن، شاخص توده بدن و محیط کمر به لگن؛ تفاوت معنی‌داری وجود نداشت (0/05<p)؛ اما FVC در گروهتمرین مقاومتی نسبت به حالت پایه بهبود یافت (0/03=p). توده بدون چربی تنها در گروه مقاومتی افزایش معنی‌داری داشت (0/03=p)، اما درصد چربی در دو گروه تمرین مقاومتی و تناوبی (به ترتیب با 0/008=p و 0/01=p) کاهش معنی‌داری پیدا کرد. نتیجه‌گیری: انجام یک دوره تمرینات تناوبی شدید یا مقاومتی دایره‌ای تأثیر معنی‌داری بر اغلب شاخص‌های تنفسی پویا نداشتند؛ اما به نظر می‌رسد تمرین مقاومتی به بهبود بیشتری در FVC و ترکیب بدنی شرکت‌کنندگان منجر می شود.
کلیدواژه‌ها
عنوان مقاله [English]
The effect of high intensity interval training and circuit resistance training on respiratory function and body composition in overweight females
نویسندگان [English]
- Azam Behrad 1
- Roya Askari 2
- Mohammad Reza Hamedinia 3
1 MS.c in Exercise Physiology, Faculty of Exercise Science, University of Hakim Sabzevari, Sabzevar, Iran
2 Assistant Professor, Faculty of Exercise Science, University of Hakim Sabzevari, Sabzevar, Iran
3 Full Professor, Faculty of Exercise Science, University of Hakim Sabzevari, Sabzevar, Iran
چکیده [English]
Background and Aim: In the present study two types of endurance training as, high intensity interval training and
circuit resistance training on pulmonary function and body composition were studied among some overweight
females. Materials and Methods: In this research forty-five qualified females volunteered and were randomly divided
into three groups including circuit resistance, high-intensity interval and control groups. Subjects in the training group
were trained for 8 weeks with 3 time intervals. The resistance group practiced 2 circles, each consisting of 7 stations;
each station included 2 sets of 8-15 repetitions, with an intensity of 65-85% 1RM. In the interval group subjects performed training at intensity of 85-95% of maximum heart rate with 8-11 repetitions including 2 minutes running and 2 minutes active resting time between intervals (30-40% HRmax). Before and after the end of the training sessions,spirometry, body composition, muscular strength and endurance and VO2max were taken. Data were analyzed byone-way ANOVA, LSD post hoc and dependent t-test. Results: The results showed no significant difference between study groups concerning forced expiratory volume (FEV1), force vital capacity (FVC), FEV1/FVC, forced expiratory flow 25-75% (FEF25-75%), body weight, body mass index and wait to hip ratio (p< 0.05). Lean body mass significantly increased in the resistance group (p< 0.04) and only resistance training group showed a significant development in FVC compared to baseline values (p< 0.03). Resistance and interval training groups showed a significant decrease in percent body fat (p< 0.008 and poverweight females.
کلیدواژه‌ها [English]
- overweight
- Body composition
- Pulmonary function
- high-intensity interval training
- Circuit Resistance Training
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