نوع مقاله : مقاله پژوهشی
نویسندگان
1 اداره آموزش و پرورش بجنورد، بجنورد، ایران
2 گروه تربیت بدنی و علوم ورزشی، دانشگاه حکیم سبزواری، سبزوار، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Objective: Increasing energy expenditure is necessary in the treatment of obesity and its disorders.Myostatin can weaken this mechanism, while exercise is an inhibitor of myostatin.The present study investigated the effect of 12weeks of interval training with three intensities of low, medium and high on serum myostatin of inactive-obese and overweight women.
Materials and Methods: In the present study, 47inactive, obese and overweight women (40.2±3.25 years old) were randomly assigned to four groups: low, moderate, high intensity and control. A 12 week interval training program with three sessions per week and intensities of 50-63, 64-76 and 77-93% of the maximum heart rate was implemented. Sampling was done in the fasting state. Statistical data was analyzed by ANOVA for repeated measures at a significant level of p<0.05.
Results: 12 weeks of interval training in different intensities did not cause a significant change in the serum myostatin in inactive obese and overweight women and between the exercise groups (P>0.05). In three intensities, there were significant differences in the indicators of body composition and VO2max compared to the before training. Significant differences in the waist to hip ratio and bodymass index between the high intensity and control group, in the body fat percentage index between three exercise intensities with control group and inVO2max between high intensity and three other groups and between the moderate intensity and control group was observed.
Conclusion: Despite the lack of change in serum myostatin after12 weeks of interval training with three different intensities, there were favorable changes in the body composition and VO2max indices with the superiority of the high intensity group compared to other training groups. Therefore,this training intensity can be used to improve the body composition and increase theVO2max of obese and overweight inactive women.
کلیدواژهها [English]