Volume 19, Issue 7 (10-2016)                   AMUJ 2016, 19(7): 56-65 | Back to browse issues page

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Attarzadeh Hosseini S R, Motahari Rad M, Moien Neia N. The effect of two different intensities resistance training on muscle growth regulatory myokines in sedentary young women. AMUJ. 2016; 19 (7) :56-65
URL: http://amuj.arakmu.ac.ir/article-1-4375-en.html
Professor, Department of Sport Physiology, Ferdowsi University of Mashhad, Mashhad, Iran. , attarzade@um.ac.ir
Abstract:   (3118 Views)

Background:  The aim of this study was to investigate the effect of resistance training with different intensities on serum myostatin and follistatin levels in sedentary young women.

Materials and Methods: In this practical and 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 two groups, [resistance training group with low intensity (40-60% of one repetition maximum) and high intensity (70-90% of one repetition maximum)]. The training protocols included: 8 weeks, 3 times a week. Blood samples (5cc) were obtained at baseline and 48 hours after at the end of the study; Also Serum levels of myostatin and follistatin were measured by ELISA methods. Data were analyzed using analysis of variance of repeated measures test by SPSS at the significant level (p<0.05).

Results: There was a significant increase in the levels of follistatin and follistatin to myostatin ratio in high intensity group (p≤0.05). Also there was a significant decrease in the levels of myostatin in high intensity group (p≤0.05); however, there was no significant change in the levels of follistatin, myostatin and follistatin to myostatin ratio in low intensity group (p≥0.05). Also there was no significant change in these variables in high intensity group compared to low intensity group (p≥0.05).

Conclusion: It’s seems that the activation of important myogenic and myostatic factors in sedentary young women need to do high intensity resistance training.

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Type of Study: Original Atricle | Subject: General
Received: 2016/04/23 | Accepted: 2016/09/24 | Published: 2016/09/24

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