Oral / Poster Presentation File
1Department of sport sciences, Khavaran Institute of Higher Education, Mashhad,Iran
22. Assistant Professor of Exercise Physiology, Department of Sport Sciences, Sadjad University, Mashhad, Iran.
In this study 20 obese adolescents were divided into two groups based on their aerobic power: 1) HIT and placebo (n=10) and HIT and arginine supplementation (n=10). The interventions were performed for eight weeks. Before intervention of exercise protocol and 48 hours after the last training session, body composition indices (fat mass, fat-free mass, body mass index) and serum levels of magnesium, copper and zinc were evaluated in both groups. The collected data were analyzed by analysis of variance and regression tests (P≤0.05). The SPSS software version 16 was used.
The results showed that the values of body mass index and fat mass in both intervention groups had a significant decrease and fat-free mass increased significantly in both groups. However, there was no significant difference between body composition indices between the two groups. The results also showed that there is a negative significant correlation between changes in zinc, magnesium with fat mass. There is a significant positive correlation between serum copper and magnesium levels with fat-free mass.
According to the results of the present study and the negative significant relationship between zinc and magnesium levels with fat mass. Serum magnesium and zinc may be involved in the regulation of body size. Obese and overweight may be at a greater risk of developing imbalance (mainly deficiency) of trace elements, which may be playing an important role in the pathogenesis of obesity and related metabolic risk factors. Due to the increasing prevalence of obesity and the high prevalence of endocrine and metabolic disorders in obese people, it is necessary to carefully examine the micronutrient status in obese children.
