نشریه علوم زیستی ورزشی

تأثیر یک دوره تمرینات مقاومتی بر سطح سرمی مایونکتین (CTRP15) و شاخص‌های آنتروپومتریک مرتبط با کاهش وزن در نوجوانان چاق

نوع مقاله : مقاله پژوهشی

نویسندگان

محمدجواد پوروقار 1
محمد ابراهیم بهرام 2

1 دانشیار فیزیولوژی ورزشی، گروه تربیت بدنی و علوم ورزشی، دانشکدة علوم انسانی، دانشگاه کاشان، کاشان، ایران

2 دانشجوی دکتری فیزیولوژی ورزشی، گروه تربیت بدنی و علوم ورزشی، دانشکدة علوم تربیتی و روان‌شناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

https://doi.org/10.22059/jsb.2022.334590.1497
چکیده
مایونکتین یک مایوکاین درگیر در فرایندهای متابولیکی است که با چاقی مرتبط است. اما نقش ورزش روی مایونکتین نوجوانان چاق مشخص نشده است. هدف از تحقیق حاضر بررسی اثر 10 هفته تمرین مقاومتی بر سطح سرمی مایونکتین و شاخص‌های آنتروپومتریک مرتبط با کاهش وزن در نوجوانان چاق بود. در این تحقیق نیمه‌تجربی، 16 نفر از نوجوانان پسر چاق با میانگین سن 61/0±94/17 سال و شاخص تودة بدنی بین 30 تا 35kg/m2 ، به‌صورت هدفمند انتخاب شدند و به‌طور تصادفی، به تساوی در دو گروه تجربی و کنترل قرار گرفتند. گروه تمرین، برنامة تمرین مقاومتی را با شدت 40 تا 85 درصد 1RM، 3 جلسه در هفته، به مدت 10 هفته اجرا کردند. پیش از شروع برنامة تمرینی و 48 ساعت پس از آخرین جلسه تمرین، مقادیر سرمی مایونکتین و شاخص‌های مرتبط با ترکیب بدنی آزمودنی‌ها اندازه‌گیری شد. تحلیل داده‌ها با استفاده از آزمون t وابسته و تحلیل کوواریانس در سطح معنا‌داری 05/0 P<انجام گرفت. تحلیل داده‌ها نشان داد که 10 هفته تمرین مقاومتی، موجب افزایش معنا‌داری سطح سرمی مایونکتین (0001/0P=) در گروه تجربی نسبت به گروه کنترل شد. همچنین مقادیر وزن (015/0P=)، شاخص تودة بدن (020/0P=) و درصد چربی (0001/0P=) در گروه تجربی کاهش معنا‌داری داشت (05/0>P). هرچند بین گروه تجربی و کنترل در میزان درصد چربی بدن (0001/0P=)، اختلاف معنا‌داری به‌دست آمد. اما، بین وزن و شاخص تودة بدن اختلاف معنا‌داری مشاهده نشد (05/0>P). نتایج این تحقیق نشان داد ورزش از نوع مقاومتی با اثر بر میزان مایونکتین، می‌تواند شاخص‌های تن‌سنجی مرتبط با اضافه وزن و چاقی را تحت تأثیر قرار دهد و  در کاهش خطر بالقوة ابتلا به برخی بیماری‌های مرتبط با چاقی مؤثر باشد.

کلیدواژه‌ها

چاقی و اضافه وزن
شاخص‌های آنتروپومتریک
مایوکاین
مایونکتین
موضوعات

عنوان مقاله English

The Effect of a Period of Resistance Training on Serum Myonectin Level (CTRP15) and Anthropometric Indices Related to Weight loss in Obese Adolescents

نویسندگان English

Mohammad javad Pourvaghar 1
Mohammad ebrahim Bahram 2
1 Associate Professor, Department of Physical Education and Sport Sciences, Faculty of Humanities, University of Kashan, Kashan, Iran
2 Ph.D, Candidate of Sports Physiology, Department of Physical Education and Sport Sciences, Faculty of Education and Psychology, University of Mohaghegh Ardabili, Ardabil,Iran
چکیده English

Myonectin is a myokine involved in metabolic processes associated with obesity. But the role of exercise on myonectin in obese adolescents has not been determined. The aim of this study was to investigate the effect of ten weeks of resistance training on the serum myonectin level and anthropometric indices related to weight loss in obese adolescents. In this quasi-experimental study, 16 obese male adolescents with mean age of 17.94±0.61 years and a body mass index between 30 and 35 kg/m2 were targeted selected and randomly divided into two equal experimental and control groups. The training group performed a resistance training program with an intensity of 40-85% of 1RM, for 10 weeks and 3 sessions per week. Before starting the training program and 48 hours after the last training session, serum myonectin levels and indices related to subjects' body composition were measured. Data analysis was performed using dependent t-test and analysis of covariance at a significance level of P=0.05. Data analysis showed that 10 weeks of resistance training significantly increased serum myonectin level (P=0.0001) in the experimental group compared to the control group. Also, the values ​​of weight (P=0.015), body mass index (P=0.020) and fat percentage (P=0.0001) were significantly decreased in the experimental group (P<0.05). However, there was a significant difference between the experimental and control groups in the percentage of body fat (P=0.0001). However, no significant difference was observed between weight and body mass index (P<0.05). The results of this study showed that resistance training with an effect on the amount of myonectin can affect anthropometric indices related to overweight and obesity and can be effective in reducing the potential risk of some obesity-related diseases.

کلیدواژه‌ها English

Anthropometric indices
Myokine
Myonectin
obesity and overweight
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نشریه علوم زیستی ورزشی
دوره 14، شماره 1
بهار 1401
صفحه 85-100

  • تاریخ دریافت 05 آذر 1400
  • تاریخ بازنگری 08 اسفند 1400
  • تاریخ پذیرش 12 اسفند 1400

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