Physical Education
Amir Delshad; maryam dashti
Abstract
Background and Objective: Obesity and overweight have become a global problem. Obesity is increasing sharply, especially in Iranian women. Experts believe that diet and drugs alone are not enough to treat and control sugar and blood fat metabolism of patients, but physical and sports activities should ...
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Background and Objective: Obesity and overweight have become a global problem. Obesity is increasing sharply, especially in Iranian women. Experts believe that diet and drugs alone are not enough to treat and control sugar and blood fat metabolism of patients, but physical and sports activities should also be added to the daily schedule.Materials and Methods: The current research is a semi-experimental type with a pre-test and post-test design. 40 overweight women were randomly assigned to four groups of combined exercise, combined exercise-supplement , supplement and control. Aerobic training was performed for 8 weeks and three sessions per week with 50-75% of the maximum heart rate and TRX training in the range of 12 to 17 pressure perception on the Borg scale. 24 hours before the start of training and 48 hours after the end of the last session, blood was taken to measure leptin and visfatin. Then, analysis of covariance (Ancova) test was used for inter-group changes and paired correlation T-test for intra-group comparison. Data analysis was done by SPSS version 25 software at a significance level of P<0.05.Results: The results show a significant decrease in leptin (p=0.001) and visfatin (p=0.001) values, and the changes for the exercise and exercise-supplement group were more than the cinnamon supplement group.Conclusion: According to the results of the current research and since combined exercise has a beneficial effect on leptin and visfatin compared to supplements, it can be recommended that overweight people use combined exercise to lose weight.
Physical Education
Rahimeh Moosavi; Fahimeh Kazemi; Parvaneh Nazarali
Volume 28, Issue 1 , January and February 2021, , Pages 41-47
Abstract
Introduction: It is known that the total-body resistance exercise (TRX) is a new training method to improve muscle strength and muscle mass, but, the impact of TRX training on the hormones involved in regulating muscle mass remains unknown. Therefore, the purpose of this study was to determine the effects ...
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Introduction: It is known that the total-body resistance exercise (TRX) is a new training method to improve muscle strength and muscle mass, but, the impact of TRX training on the hormones involved in regulating muscle mass remains unknown. Therefore, the purpose of this study was to determine the effects of one period of TRX training on serum concentration of myostatin and follistatin in inactive women. Materials and methods: In an experimental study with pre- and post-test design, 27 inactive women aged 20 to 40 years were randomly divided into two groups of control (n=12) and TRX (n=15). The TRX group performed for eight weeks and three sessions a week on selected TRX trainings, which included 6 main movements for 60 minutes. Blood samples were collected at baseline and 48 hours after the last exercise session and serum concentration of myostatin and follistatin was measure. Independent sample t-test and paired sample t-test was used for analyzing data. Results: The results showed that TRX training resulted in a significant reduction in serum myostatin (TRX: 42.53 ± 8.64 pg/ml versus control: 52.77 ± 12.90 pg/ml) when compared to the control group (P= 0.021). Also, TRX training resulted in a significant increase in serum follistatin (TRX: 1865.93 ± 209.78 pg/ml versus control: 1651.41 ± 164.92 pg/ml) when compared to the control group (P= 0.008). Conclusion: According to the present findings, it seems that one period of TRX training may be result in decrease of myostatin and increase of follistatin hormones in inactive women