The aim of this study was to compare three modes of training on VO2peak in obese/overweight men. Accordingly, thirty obese/overweight men were divided into three groups, high intensity interval training (HIT; n=10), continuous training (CON; n=10) and resistance training (RES; n=10). The training was performed three time per week for 12 weeks. The HIT group performed 6-10 ´ 1 min intervals at 85-95% maximal heart rate, each interval separated by 1 min active recovery. The continuous group exercised continuously at 60-70% maximal heart rate. The resistance training group performed three exercises for upper body, two exercises for lower body and one exercise for trunk that performed with 70-80% 1RM. Body weight and BMI significantly decreased in all groups. After 12 weeks, peak oxygen uptake significantly increased in all groups (HIT:10%, CON: 8% and RES: 7.4%)(all P£ 0.001). When the improvement of VO2peak adjusted on basis of weight changes, the maximum and minimum net increase observed in RES and HIT groups, respectively. There was no significant difference among groups. The results showed that all three types of trainings could be effective in improvement of VO2peak, weight loss and BMI in obese/overweight men.
