اثر تمرین تناوبی شدید با تواتر کم و مکمل سیترولین بر میوستاتین و برخی شاخص‌های فیزیولوژیکی مردان سالمند غیرفعال

نوع مقاله : مقاله پژوهشی

نویسندگان

1 . کارشناس ارشد فیزیولوژی ورزش، واحد ساری، دانشگاه آزاد اسلامی، ساری، ایران

2 استادیار فیزیولوژی ورزش، واحد ساری، دانشگاه آزاد اسلامی، ساری، ایران

چکیده

سالمندی اغلب با کاهش پیش‌روندة قدرت عضلاتی و افزایش تودة چربی همراه است. تمرینات تناوبی شدید ممکن است قدرت عضلانی را بهبود بخشد، اما تأثیرات آن در افراد سالمند تا حد زیادی روشن نیست. بنابراین، هدف از تحقیق حاضر، بررسی اثر 8 هفته تمرین تناوبی شدید کم‌تواتر و مکمل ال- سیترولین بر میوستاتین، توان هوازی، قدرت و استقامت عضلانی و درصد چربی مردان سالمند بود. 30 مرد سالمند غیرفعال انتخاب شدند و به‌طور تصادفی در سه گروه تمرین تناوبی شدید (HIIT)، سیترولین (CIT) و تمرین تناوبی شدید + سیترولین ( HIIT + CIT) قرار گرفتند. پروتکل HIIT به مدت 8 هفته و 2 جلسه در هفته و شامل فعالیت 30 ثانیه‌ای رکاب زدن روی دوچرخة ارگومتر (شدت 85 تا 90 درصد ضربان قلب ذخیره) بود. مکمل سیترولین یک روز در میان به مقدار شش گرم مصرف شد. از آزمون تحلیل واریانس یکطرفه استفاده شد. نتایج نشان داد که میوستاتین در گروه HIIT +CIT نسبت به CIT و درصد چربی بدن در گروه‌های HIIT + CIT و HIT نسبت به CIT کاهش معناداری داشت. قدرت و توان هوازی در گروه‌های HIIT + CIT و HIT نسبت به CIT افزایش معناداری داشت. گروه HIIT + CIT افزایش معناداری در استقامت عضلانی نسبت به CIT داشت. براساس نتایج تحقیق، HIIT به‌تنهایی و در تعامل با مکمل ال سیترولین به بهبود شاخص‌های قدرت و حجم عضلانی و عملکرد هوازی مردان سالمند غیرفعال منجر شد. بنابراین، تمرینات تناوبی شدید کم‌تواتر و ال-سیترولین می‌تواند روش مؤثری برای پیشگیری یا کاهش سارکوپنیا در سالمندان باشد.
 

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effects of low-frequency High-Intensity Interval training combined with L-Citrulline supplementation on myostatin and some physiological parameters in inactive elderly men

نویسندگان [English]

  • faramarz hosein zade 1
  • Amin Farzaneh 2
1 . MSc of Exercise Physiology, Sari Branch, Islamic Azad University, Sari, Iran
2 Assistant Professor of Exercise Physiology, Sari Branch, Islamic Azad University, Sari, Iran
چکیده [English]

Aging is often associated with a progressive loss of muscle strength and an increase in fat mass. High-intensity interval training may improve muscle strength, but remains largely unstudied in ageing participants. Therefore, the purpose of this study was to determine the effects of eight weeks of low-frequency high-intensity interval and L-citrulline supplementation on myostatin, aerobic power, muscular strength and endurance and body fat in older men. 30 inactive old men randomly divided into three groups: high-intensity interval training (HIT), citrolin (CIT) and high-intensity interval training+citrolin (HIT+CIT). HIIT was performed for 8 weeks and 2 sessions per week that included 30 seconds cycling exercise on ergometer (intensity of 85-90% HR reserve). CIT supplement consumed in single 8 g-dose alternateve day. Results showed that there was significant decrease for myostatin in HIT+CIT and for body fat in HIT+CIT and HIT than CIT. Muscular strength and aerobic power significant increase in HIT+CIT and HIT than CIT. HIT+CITgroup showed significant increase compared to CIT. In conclusion, low-frequency HIIT alone and combined with L-citrulline seems to induce greater improvements in muscular strength and mass factors and aerobic performance in inactive elderly men. Therefore, low-frequency HIIT+CIT can be considered as effective program to prevent or reduce sarcopenia among elderly.

کلیدواژه‌ها [English]

  • high-intensity interval training
  • citrolin
  • aerobic power
  • sarcopenia
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