Elastic resistance training has positive influence on the functional capacity and appetite hormone in overweight men

Purpose: Exercise training may influence on appetite hormones and energy homeostasis. Aims: The purpose of the current study was to investigate the effect of resistance training with elastic band (ERT) on ghrelin (GHRL) and Obestatin (OBST) hormone concentration changes in overweight men. Methods: 20 male overweight (25<BMI≤29.5 kg/m 2 ) voluntary participated in the current study and randomly assigned in the resistance training with elastic bands (ERT; n=10), and control (Con; n=10). Elastic resistance training was done three sessions in week in nonconsecutive for eight weeks. Blood sample was gathered before ERT and was repeated 48 hour interval with the last session of exercise training. GHRL and OBST were assessed in the plasma. Also, functional capacity (Push UP: PU; Squat: SQ) was assessed, and body fat percentage (BF %) were estimated. Results: We found that there was a significant difference in GHRL in the ERT than control [time× group (p=0.045; F=4.38)], however, there was no significant difference in OBST (p˃0.05). It was also seen that the interactive effect of time in the ERT (time× group) was significant for PU and SQ [(p=0.004; F=8.02), and SQ (p=0.011; F=8.1], respectively. Also, a decrease was seen in BF% in the ERT than control (p≤0.001). Conclusion: Finally, it can be concluded elastic resistance training with elastic bands have an positive impact on the functional capacity and appetite hormones and should be taken into consideration in the design of weight control protocols.