Exercise Physiology
amir khosravi; Vahid Valipour Dehnou; Rima Shayan Nasab; sakine Jafarian
Abstract
Aim: One of the complications of menopause that plays an important role in reducing the quality of life is the reduction of body fat-free mass. The aim of this study was to determine the effect of a period of whole body vibration course on myostatin and follistatin Serum in Postmenopausal Women. Methods: ...
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Aim: One of the complications of menopause that plays an important role in reducing the quality of life is the reduction of body fat-free mass. The aim of this study was to determine the effect of a period of whole body vibration course on myostatin and follistatin Serum in Postmenopausal Women. Methods: In this semi experimental study, 20 postmenopausal women with hypothyroidism were selected and divided into two groups of 10: control (C) and whole body vibration training (V). Group V performed these exercises for 12 weeks and three times a week, with a frequency of 30 to 50 Hz, applying on upper and lower limb training. At the beginning and end of the study, blood serum myostatin and follistatin levels were measured using the ELISA method, , body fat percentage, body mass index, and body weight. Due to the normality of data distribution, independent t and covariance statistical methods were used for analysis at a significance level of 0.05. Results: 12 weeks of whole body vibration training in group V significantly increased the serum levels of follistatin (P=0.001), and decreased myostatine (P=0.018) compared to the control group. There was also a significant decrease in body fat percentage (P=0.041), body mass index (P=0.044) and weight (P=0.047).Conclusions: It seems that whole body vibration training increases serum levels of follistatin and decreases myostatin in postmenopausal women, and these positive changes may play an important role in improving lean mass of postmenopausal women.
Exercise Physiology
Solmaz Babaei; Morteza Fattahpour Marani
Abstract
Aim: Myostatin and follistatin proteins are important proteins in the regulation of muscle tissue. Therefore, the aim of this study was to investigate the effect of 8 weeks of HIIT training on the serum levels of myostatin and follistatin in inactive young women.Method: The present study was conducted ...
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Aim: Myostatin and follistatin proteins are important proteins in the regulation of muscle tissue. Therefore, the aim of this study was to investigate the effect of 8 weeks of HIIT training on the serum levels of myostatin and follistatin in inactive young women.Method: The present study was conducted in a semi-experimental manner with two experimental and control groups on 30 inactive young women in the age range of 30-35 years. The experimental group performed HIIT exercises for 8 weeks, and three sessions per week for 60 minutes with an intensity of 65-75% of the maximum heart rate, and during this period, the control group had no physical activity. Blood samples were taken after 48 hours before and after exercise intervention in order to measure myostatin and follistatin variables. Data were analyzed using covariance test.Result: The results of this research showed that the serum level of myostatin decreased significantly in the experimental group compared to the control group after 8 weeks of HIIT exercises (P<0.001), while the serum level of follistatin increased significantly in the experimental group compared to the control group in the post-test. You have shown (P<0.001).Conclusion: HIIT exercises can decrease the expression of myostatin and increase the expression of follistatin in human samples and can lead to muscle hypertrophy and can be used as an exercise intervention in the rehabilitation program of inactive women. be placed.Keywords: HIIT; Myostatin, follistatin, young women