Effect of non-linear resistance exercise and glycyrrhizic acid supplementation on muscular function and perceived muscular pain in overweight young men

One of the important issues of sport rehabilitation in individuals with overweight syndrome is increase muscular function and modulate responses of muscular pain subsequent physical activity with consumption of medicinal plants. Therefore, the aim of this study was to investigate the effects of non-linear resistance exercise and glycyrrhizic acid supplementation on muscle function and perceivedmuscular pain in overweight young men. In this semi - experimental trials, 32 subjects (mean age: 21.99 ± 1.46 years, and body mass index: 26.86 ± 0.64 kg/m2) voluntarily participated in this study and divided randomly into 4 equal (n=8) groups including non-linear resistance exercise+supplementation, supplementation, non-linear resistance exercise+placebo and control groups. The training program performed for 8 weeks and 3 sessions per week. The muscular performance indicators and perceived muscle pain were measured respectively by one repetition maximum and McGill pain perception scale, before and after 8 weeks.The repeated measures, two-way and one-way analysis of variance (ANOVA) and Pearson correlation coefficient test were used for extraction of results at p The results showed that perceived muscular pain at intervals immediately, 24, 48 and 72 hours after the last training session decreased significantly than pre-test and control group (p=0.0001); wherase muscular performance increased significantly than pre-test (p=0.0001). Moreover, it is observed significant inverse relationship between perceived muscular pain with body mass index and lean body mass (p=0.02). In order to attain desire and beneficial results, non-linear resistance exercise along with glycyrrhizic gcid supplementation can be placed as an important part of sports rehabilitation program in overweight individuals.