This study was performed to investigate the effects of 10 weeks of aerobic training on glycemic control and body composition in obese patients with type 2 diabetes. Twenty one males with type 2 diabetes (40 to 50 years old) were randomly assigned to the training (n=11) and control (n=10) groups. The training group participated in an aerobic training program (three sessions per week and 45-60 min per session) for 10 weeks with the intensity of 50-65% of heart rate reserve (HRR). Weight, body mass index (BMI), percentage of body fat, glucose, insulin, hemoglobin A1c (HbA1c) and insulin resistance were measured in both groups before and after training. Ten weeks of aerobic training resulted in a significant decrease in weight, BMI, percentage of body fat, glucose, HbA1c and insulin resistance in the training group while no significant change was observed in the serum concentrations of insulin. The control group did not demonstrate any significant changes in the measured variables. There was a significant relationship between change in percentage of body fat and changes in glucose and insulin resistance. This study showed that 10 weeks of moderate intensity aerobic training can improve glycemic control and body composition in obese patients with type 2 diabetes. Our findings suggest that the improvement in glycemic control with aerobic training is associated with a decrease in percentage of body fat in these patients.C
