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اثر شش هفته تمرین عملکردی همراه با محدودیت جریان خون بر نسبت مایواستاتین به فولیستاتین و آمادگی بدنی مردان سالمند | ||
پژوهشنامه فیزیولوژی ورزشی کاربردی | ||
مقاله 15، دوره 15، شماره 30، دی 1398، صفحه 227-243 اصل مقاله (852.68 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22080/jaep.2019.17016.1901 | ||
نویسندگان | ||
زهرا شیخی پیرکوهی1؛ پریسا ذاکری1؛ محمد رضا دهخدا2؛ زهرا میراخوری3؛ صادق امانی شلمزاری* 4 | ||
1دانشجوی کارشناسی ارشد فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه خوارزمی، تهران | ||
2دانشیار گروه فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه خوارزمی، تهران | ||
3استادیار فیزیولوژی ورزشی، گروه تربیت بدنی، دانشگاه صنعتی امیرکبیر، تهران | ||
4استادیار گروه فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه خوارزمی، تهران | ||
تاریخ دریافت: 05 شهریور 1398، تاریخ بازنگری: 25 شهریور 1398، تاریخ پذیرش: 03 مهر 1398 | ||
چکیده | ||
سابقه و هدف: سالمندی با کاهش توده عضلانی همراه است و مشخص شده فعالیت بدنی میتواند با آن مقابله کند. لذا بررسی تاثیرات تمرینات عملکردی با و بدون محدودیت جریان خون (BFR) بر نسبت مایواستاتین به فولیستاتین و شاخصهای آمادگی بدنی مردان سالمند هدف پژوهش حاضر بود. مواد و روشها: 30 مرد سالمند سالم(8/3±7/68 سال، شاخص تودهی بدنی 1/2±6/25) به صورت تصادفی در دو گروه تجربی تمرین عملکردی(FT) و تمرین عملکردی با محدودیت جریان خون(FBFR) و یک گروه کنترل(C) قرار گرفتند. یازده تمرین عملکردی با تاکید بر قابلیتهای حرکتی، 3 روز درهفته، به مدت 6 هفته، با 30 الی 40 درصد یک تکرار بیشینه انجام شد. کاف بادی با فشار 110 و 70 درصد فشار انسداد شریانی برای پایینتنه و بالاتنه بهترتیب استفاده شد و هر دو هفته، فشار آن 10 درصد افزایش یافت. قبل و پس از اتمام پروتکل، علاوه بر خونگیری، یک مجموعه آزمون برای تعیین سطح آمادگی از آزمودنیها بعمل آمد. برای بررسی متغیرها از آزمون تحلیل کوواریانس و تی زوجی استفاده شد. یافتهها: در مقایسه با گروه کنترل، بهبود معنیدار در قدرت، تعادل ایستا و پویا پس از شش هفته تمرین در دو گروه تجربی مشاهده شد(001/0p=). اختلاف معناداری بین دو گروه تجربی در این شاخصها مشاهده نشد. بدنبال انجام پروتکل تحقیق، غلظت مایواستاتین و فولیستاتین در دوگروه تجربی به ترتیب کاهش و افزایش یافت. نسبت فولیستاتین به مایواستاتین تنها در گروه FBFR اختلاف معنیدار با گروه کنترل داشت(05/0p<). نتیجه گیری: سازگاریهای عصبی تمرینات عملکردی موجب بهبود معنیداری شاخصهای امادگی بدنی شده است و اضافه نمودن BFR به این تمرینات در کوتاه مدت، تنها تاثیرات اندکی در متغیرهای بیوشیمیایی ایجاد میکند. | ||
کلیدواژهها | ||
سارکوپنیا؛ قدرت عضلانی؛ تمرین انسدادی؛ تعادل ایستا؛ تعادل پویا | ||
عنوان مقاله [English] | ||
The Effect of Six Weeks of Functional training with Blood Flow Restriction on Myostatin to Folistatin Ratio and Physical Fitness in Elderly Men | ||
نویسندگان [English] | ||
Zahra Shikhi pir kohi1؛ Parisa Zakeri1؛ Mohammadreza Dehkhoda2؛ Zahra Mirakhori3؛ Sadegh Amani -Shalamzari4 | ||
1Department of Exercise Physiology, Faculty of Sport Science, Kharazmi University, Tehran, Iran | ||
2Department of Exercise Physiology, Faculty of Sport Science, Kharazmi University, Tehran, Iran | ||
3Department of Sport Science, Amir Kabir Industry University, Tehran, Iran | ||
4Department of Exercise Physiology, Faculty of Sport Science, Kharazmi University, Tehran, Iran | ||
چکیده [English] | ||
Background&Purpose: Aging is associated with decreased muscle mass and it is known physical training can counteracts it. Therefore, this study was aimed to evaluate the effects of functional training with and without blood flow restriction (BFR) on Myostatin to Follistatin ratio (M: F) and physical fitness indices in elderly men. Methodology:Thirty healthy elderly men (age 68.7±3.8years, BMI 25.6±2.1 kg/m2), were randomly divided into two experimental groups, Functional training(FT) and Functional training with Blood Flow Restriction(FBFR) and control group(C). Eleven functional exercises with focus on motor skills were performed 3 days per week, 6 weeks with 30-40% of one maximum repetition. Inflatable cuff with 110 and 70% arterial occlusion pressure was used for lower and upper body respectively and, the pressure was increased by 10% every two weeks. In addition to blood sampling, a set of tests was performed to determine the fitness level of the subjects, before and after the protocol. Covariance analysis and paired t-test were applied to evaluate the variables. Results: Compared to the control group, following training interventions significant improvements in muscle strength, static and dynamic balance were observed in the two experimental groups (p= 0.001); without significant differences between the two experimental groups. Following the study protocol, the concentration of myostatin and follistatin decreased and increased in the two experimental groups, respectively. The M:F ratio only in the FBFR group was significantly different from the C group(p<0.05). Conclusion: Neurological adaptations of functional training caused to significantly improve in physical fitness indices, and the adding BFR to the training in the short term has only a small effect on biochemical variables. | ||
کلیدواژهها [English] | ||
Sarcopenia, Muscular Strength, Occlusion Training, Static Balance, Dynamic Balance | ||
مراجع | ||
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