پاسخ سطوح سرمی آتروژین-1 و عامل رشد شبه انسولین-1 به مصرف شیر کم ‌چرب متعاقب انجام یک جلسه فعالیت ورزشی تناوبی شدید در وضعیت ناشتایی در مردان جوان دارای اضافه وزن

نوع مقاله : مقاله های پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد، گروه علوم ورزشی، دانشکده‌ی علوم ورزشی، دانشگاه بیرجند، بیرجند، ایران

2 دانشیار، گروه علوم ورزشی، دانشکده‌ی علوم ورزشی، دانشگاه بیرجند، بیرجند، ایران

3 استادیار، گروه علوم ورزشی، دانشکده‌ی علوم ورزشی، دانشگاه بیرجند، بیرجند، ایران

چکیده

مقدمه: هدف از انجام مطالعه‌ی حاضر، بررسی پاسخ سطوح سرمی آتروژین-1 و عامل رشد شبه انسولین-1 به مصرف شیر کم ‌چرب به دنبال انجام یک جلسه فعالیت ورزشی تناوبی شدید در وضعیت ناشتایی در مردان جوان بود.روش‌ها: 10 مرد جوان دارای اضافه وزن با میانگین سنی 71/1 ± 50/20 سال و شاخص توده‌ی بدنی 80/2 ± 08/28 کیلوگرم بر مترمربع، به صورت تصادفی انتخاب شدند. آزمودنی‌ها در دو جلسه‌ی فعالیت ورزشی در دو روز نامتوالی شرکت نمودند. فعالیت ورزشی هر جلسه، شامل چهار نوبت اجرای آزمون Wingate ۳۰ ثانیه‌ای با 5/4 دقیقه استراحت فعال بین نوبت‌ها بود. با این تفاوت که در جلسه‌ی دوم، بلافاصله پس از انجام تمرین، آزمودنی‌ها 500 میلی‌لیتر شیر کم ‌چرب نوشیدند. نمونه‌گیری خون، قبل از تمرین، 5، 90 و 180 دقیقه پس از انجام فعالیت ورزشی انجام گرفت. داده‌ها با استفاده از آزمون Repeated measures ANOVA و آزمون تعقیبی Bonferroni correction تحلیل شد. 05/0 > P به عنوان سطح معنی‌داری در نظر گرفته شد.یافته‌ها: سطح سرمی آتروژین-1 به دنبال فعالیت ورزشی در هر دو جلسه تغییر معنی‌داری نداشت (05/0 < P). سطح سرمی عامل رشد شبه انسولین-1 پس از 90 دقیقه (04/0 = P) و 180 دقیقه (02/0 = P) پس از فعالیت ورزشی در جلسه بدون مصرف شیر کاهش معنی‌داری یافت؛ در حالی که مصرف شیر با جلوگیری از کاهش سطح عامل رشد شبه انسولین-1، باعث عدم تغییر معنی‌دار این متغیر به دنبال فعالیت ورزشی شد (05/0 < P).نتیجه‌گیری: به نظر می‌رسد مصرف شیر کم ‌چرب بلافاصله پس از فعالیت ورزشی در حالت ناشتایی، با جلوگیری از کاهش عوامل رشد، می‌تواند به حفظ توده‌ی عضلانی کمک نماید.

کلیدواژه‌ها

عنوان مقاله [English]

The Response of Plasma Levels of Atrogin-1 and Insulin-Like Growth Factor-1 to Low-Fat Milk Consumption after One Session of High-Intensity Interval Exercise in Fasting State among Overweight Young Men

نویسندگان [English]

  • Samira Hasanabadi 1
  • Marziyeh Saghebjoo 2
  • Mohsen Mohammadnia-Ahmadi 3
1 MSc Student, Department of Sport Sciences, School of Sport Sciences, University of Birjand, Birjand, Iran
2 Associate Professor, Department of Sport Sciences, School of Sport Sciences, University of Birjand, Birjand, Iran
3 Assistant Professor, Department of Sport Sciences, School of Sport Sciences, University of Birjand, Birjand, Iran
چکیده [English]

Background: The aim of this study was assessing the response of plasma levels of atrogin-1 and insulin-like growth factor-1 to low-fat milk consumption after one session of high-intensity interval exercise in fasting state among overweight young men.Methods: Ten overweight young men (mean age: 20.50 ± 1.71 years and body mass index: 28.08 ± 2.80 kg/m2) were randomly selected. They were participated in two exercise sessions of two non-consecutive days. The exercise program in each day included 4 sets of 30-second Wingate test with 4.5 minutes active rests between sets. The difference was that in the second session, immediately after exercise, participants drank 500 ml of low-fat milk. Blood samples were taken before exercise and 5, 90 and 180 minutes after it. Data were analyzed using analysis of variance with repeated measures and Bonferroni test (P < 0.05).Findings: The plasma level of atrogin-1 was not significantly different after exercise in both sessions (P > 0.05). The plasma level of insulin-like growth factor-1 significantly reduced after 90 and 180 minutes post-exercise in the sessions without milk consumption (P = 0.04 and 0.02, respectively); while milk consumption caused no significant change in this variable after exercise by prevention of reducing in insulin-like growth factor-1 levels (P > 0.05).Conclusion: It seems that consumption of low-fat milk, immediately after exercise in the fasting state, can help to maintain muscle mass by avoid reducing growth factors.

کلیدواژه‌ها [English]

  • High intensity interval exercise
  • Fasting
  • Low-fat milk
  • Atrogin-1
  • Insulin like growth factor-1

مراجع

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مجله دانشکده پزشکی اصفهان
دوره 34، شماره 408 - شماره پیاپی 408
آذر و دی 1395
صفحه 1406-1413

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سابقه مقاله

  • تاریخ دریافت: 07 مهر 1395
  • تاریخ بازنگری: 11 آبان 1403
  • تاریخ پذیرش: 17 فروردین 1401

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