Exercise Physiology
Zohreh Shanazari; Mohammad Faramarzi; ZAHRA HEMATI FARSANI; Mohammad Soleimani
Abstract
Introduction: Body weight is adjusted through the balance between receiving food and energy. The ghrelin hormone increases appetite and food intake. The aim of this study was to examine the order effect of combined training on ghrelin levels and energy expenditure in overweight women. Methods: 30 overweight ...
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Introduction: Body weight is adjusted through the balance between receiving food and energy. The ghrelin hormone increases appetite and food intake. The aim of this study was to examine the order effect of combined training on ghrelin levels and energy expenditure in overweight women. Methods: 30 overweight female (aged 32-18 years, body mass index ≥ 25 kg m) was selected and randomly divided into three groups, endurance – resistance (E+S), resistance –endurance (S+E) and control group. Participants performed eight,weeks, threesessions per week combined training.. 24 h before and 48 h after training program Ghrelin levels and energy expenditure were measured by ELISA kit and Harris-Benedict formula. The statistical analysis was performed using ANOVA test and LSD post hoc test and SPSS statistical software with significance level of (P <0.05).Results: E+S and S+E intervention was caused increase on energy expenditure than control group (p<0.05) and There was no significant effect on ghrelin(p>0.05) . Also, there was no significant difference between strength - endurance and endurance-strength intervention on the ghrelin levels and energy expenditure in overweight women.Conclusion: Without attention to order of training, combined exercises has significant effect on and energy expenditure and There is no significant effect on ghrelin levels .it seems appropriate training methods for weight loss of overweight women.
Negin Kazemipour; Mohammad Faramarzi; Ebrahim Banitalebi
Abstract
Purpose: Myostatin, its inhibitor follistatin have been proposed as factors that could potentially modify biological aging. The purpose of this study was to investigate the effect of 12 weeks elastic-band resistance training on myostatin, follistatin levels in elderly women with osteosarcopenic obesity. ...
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Purpose: Myostatin, its inhibitor follistatin have been proposed as factors that could potentially modify biological aging. The purpose of this study was to investigate the effect of 12 weeks elastic-band resistance training on myostatin, follistatin levels in elderly women with osteosarcopenic obesity. Methodology: In this randomized, single blind randomized clinical trial, 48 elderly women with osteosarcopenic obesity (based on the results of the DEXA test, age 64.63 ± 3.68 (years), fat percentage 45.4 ± 6.6 (%), BMI 33.1 ± 3.71 (kg/m2), T score of bone minerals density of femur and 1-4 lumbar spine -1.86 ± 1.42) were randomly divided to control (n = 22) and exercise (n = 26). The training group performed 12 weeks and three sessions a week elastic-band resistance training for all major muscle groups. 48 hours before and after 12 weeks of intervention, blood sampling intervention was performed. Paired-sample t-test was used for intra-group comparisons and Ancova was used for comparison between groups. Results: The between groups comparison showed the a mount of significant difference in Follistatin (P=0.002) in training group, weight (P = 0.001), fat percentage (P = 0.001) increased and the ratio of follystatin to myostatin (P = 0.018) decreasedsignificantly.incontrol groups. However, there were no significant difference in body mass index (P = 0.054), myostatin (P=0.095) between groups. Conclusion: Resistance training with elastic band seems to be an appropriate exercise strategy that can improve body composition and muscle mass in elderly people with osteosarcopenic obesity by modulating follistatin and myostatin levels.
