The aim of the present study was to determination the effect of eight weeks exercise combined with glutamine supplement on aerobic capacity, anaerobic power (peak, mean and maximum) and body composition of soccer players. It is hypotheses that the glutamine supplement has effect on the aerobic capacity, anaerobic power and body composition (total body mass, lean body mass and body fat percentage) of football players. The study was semi-experimental that done in pre and post-test phases on control (n=10) and training (n=10) groups on 2010 in boushehr, Iran. One day before beginning of the study protocols, subjects accomplished aerobic and anaerobic power and body composition testes. Afterwards, the subjects underwent exercise protocol for 8 weeks, 3 sessions per week, and 90 minutes per session of training. Half hour before each training session, the training group consumed glutamine supplement (0.1 g. glutamine saluted in 300 mg water and 300 mg sugar for 1 kg of body weight) and the control group consumed placebo (0.1 g. sugar per 300 mg water for 1 kg of body weight). Data were analyzed through independent t test. The results showed that there were significant differences in post-test of aerobic and anaerobic capacity and body composition of football players. These results indicated that consumption of glutamine supplement combined with exercise leads to increase in aerobic power, anaerobic power, total body math, lean body math and decrease in body fat percentage.
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