Arezoo Eskandari Shahrabi; Hamid Agha Alinejad; Reza Gharakhanlo; Mohammad Fashi
Abstract
Background and Aim: Exercise in warm weather can lead to a change in stress hormones and immune factors as compare to normal conditions. The present study aimed to investigate the effects of a bout of resistance exercise in a warm weather on Immune and hormonal responses. Materials and Methods: Eight ...
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Background and Aim: Exercise in warm weather can lead to a change in stress hormones and immune factors as compare to normal conditions. The present study aimed to investigate the effects of a bout of resistance exercise in a warm weather on Immune and hormonal responses. Materials and Methods: Eight male students with an average of 27±2 years participated in this study. The exercise program was performed for two conditions, at the first week it done in a normal temperature (20° C) and then it performed in a warm temperature (35°C) in the following week. Blood samples were taken one hour before, immediately after and one hour after of about a resistance exercise including 10 repetition, 3 sets up to 70 percent of 1 repetition moximum. In both environments, body temperature was measured from the axillary area. The serum concentration of Interleukin-15 (IL-15), heat shock protein 70 (HSP70), testosterone and cortisol were measured by ELISA method. The ANOVA test for repeated measures and Bonferoni tests were applied for reslts extraction. Results: Resistance training in warm wether significantly increased the cortisol (p=0.04), HSP70 (p= 0.007), IL-15 (p=0.03), and testosterone (p=0.02) values. Conclusion: Assuming that cortisol elevation due to warm condition induce IL-15 suppression and IL-15 dropping limit muscle hypertrophy; it can be suggested that a bout of resistance exercise in a warm weather colud attenuate exercise –induced hypertrophy .
