Effect of resistance and TRX training on serum level of myostatin and follistatin and the ratio of follistatin/myostatin in young sedentary women
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Authors
1گروه تربیت بدنی و علوم ورزشی، دانشکده علوم انسانی، دانشگاه آزاد اسلامی واحد بجنورد
2گروه تربیت بدنی و علوم ورزشی، دانشگاه آزاد اسلامی واحد بجنورد، بجنورد، ایران
Abstract
Introduction: The aim of this study was to investigate the effect of resistance and TRX training on serum myostatin and folistatin levels and folistatin/myostatin ratio in sedentary young women.
Materials and Methods: In this semi experimental study, 24 sedentary young women with range of 20-30 years and BMI 22-25 kg/m2 were selected by convenience sampling. Then, the volunteers were randomly assigned into 3 groups, [resistance training group (60-70% of one repetition maximum), TRX group (Similar to resistance training) and control group]. The selected training included: 8 weeks, 3 times a week. Blood samples were obtained at baseline, 24 hours before and 48 hours after at the end of the study. Data analysis was performed using
SPSS software (version 22 SPSS). To make intra and between groups’ comparison, paired T test and covariance test were used. For all statistical comparisons, the level of significance was considered at P<0.05.
Results: The results of this study showed that serum both resistance and TRX group lower Percent Body Fat (PBF) and increase fat free mass (FFM) (P<0.05). The levels of myostatin and folistatin decreased and increased respectively, after eight weeks of resistance training (P<0.05), but despite increase in folistatin and decrease in myostatin levels in TRX group, these changes were not significant (P>0.05). Eight weeks of resistance training and TRX had no significant effect on folistatin/myostatin ratio in young women (P>0.05).
Conclusion: These results suggest that the resistance training with moderate intensity can improve the levels of myostatin and folistatin in sedentary young women and then improve their fat free mass index.
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