تأثیر 8 هفته تمرین تناوبی با شدت متوسط بر مقادیر امنتین و شاخص مقاومت به انسولین در دختران نوجوان چاق

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار فیزیولوژی ورزشی، گروه تربیت بدنی و علوم ورزشی، دانشکدۀ علوم انسانی، واحد تهران شرق، دانشگاه آزاد اسلامی تهران، ایران

2 کارشناس‌ فیزیولوژی ورزشی، گروه تربیت بدنی و علوم ورزشی، دانشکدۀ علوم انسانی، واحد تهران شرق، دانشگاه آزاد اسلامی تهران، ایران

چکیده

 
امنتین آدیپوکاینی است که اغلب از بافت چربی احشایی ترشح می‌شود و عملکرد متابولیکی آن افزایش انسولین با تحریک انتقال گلوکز است. هدف از این پژوهش بررسی تأثیر 8 هفته تمرین تناوبی با شدت متوسط بر مقادیر امنتین و شاخص مقاومت انسولین در دختران چاق بود. ۱۸ دانش‌آموز دختر چاق ۱۴-۱۲ سال (۳۰ ≤BMI) داوطلبانه انتخاب شدند و به‌صورت تصادفی به دو گروه تمرین (۹=n) و گروه کنترل (۹=n) تقسیم‌ شدند. گروه تمرین ۸ هفته تمرین و هر هفته 3 جلسه به مدت ۲۰ دقیقه با شدت۷۰ تا ۷۵ درصد ضربان قلب هدف به‌صورت تناوبی را انجام دادند. نمونۀ خونی ۲۴ ساعت قبل از اولین جلسۀ تمرینی و ۴۸ ساعت بعد از آخرین جلسۀ تمرینی و پس از ۱۲ ساعت ناشتایی گرفته شد. داده‌ها با استفاده از روش آماری تحلیل کوواریانس و سطح معنا‌داری (05/0 > P) ارزیابی شد. نتایج حاکی از افزایش معنا‌دار امنتین در گروه تمرین نسبت به گروه کنترل و افزایش معنادار حداکثر اکسیژن مصرفی و کاهش معنادار وزنو شاخص تودۀ بدن بود (05/0 > P). ازاین‌رو می‌توان تمرین تناوبی با شدت متوسط را به‌عنوان یک شیوۀ غیردارویی که موجب کاهش وزن و افزایش حداکثر اکسیژن مصرفی در دختران نوجوان می‌شود، استفاده کرد.

کلیدواژه‌ها

عنوان مقاله [English]

The Effect of 8 Weeks of Moderate Intensity Interval Training on Omentin Levels and Insulin Resistance Index in Obese Adolescent Girls

نویسندگان [English]

  • Shahin Riyahi Malayeri 1
  • Mahdiyeh Mirakhorli 2
1 .Assistant Professor of Exercise Physiology, Department of Physical Education and Sport Sciences, Faculty of Humanities, East Tehran Branch, Islamic Azad University, Tehran, Iran
2 MSc of Exercise Physiology, Department of Physical Education and Sport Sciences, Faculty of Humanities, East Tehran Branch, Islamic Azad University, Tehran, Iran
چکیده [English]

Omentin is an adipokine that is primarily secreted from visceral adipose tissue and its metabolic function is enhancement of insulin with stimulated glucose transport. The aim of this study was to investigate the effect of eight weeks of moderate intensity interval training on omentin levels and insulin resistance index in obese girls. 18 female obese students (12-14 years old, BMI≥30) were voluntarily selected and randomly divided into experimental (n=9) and control (n=9) group. The training group performed 8 weeks of interval training for 8 weeks, 3 sessions each week, 20 minutes every session with 70-75% of target heart rate. Blood samples were collected 24 hours before the first training session and 48 hours after the last training session and after 12 hours of fasting. Data were analyzed by covariance analysis and significant level (P<0.05). The results showed a significant increase in the omentin in the experimental group compared with the control group and a significant increase in the maximum oxygen consumption and a significant reduction in weight and body mass index (P<0.05). Hence, moderate intensity interval training can be used as a non-pharmacological method that reduces weight and increases the maximum oxygen consumption in adolescent girls.

کلیدواژه‌ها [English]

  • Omentin
  • Moderate Intensity Interval Training
  • Obese Girls

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پژوهش های فیزیولوژی و مدیریت در ورزش
دوره 10، شماره 2
مرداد 1397
صفحه 59-68

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