The purpose of the study was to find out the effectiveness of aerobic training on selected physiological variables among children prone to obesity. To achieve the purpose twenty five schools boys were selected from Fathima Higher Secondary School, Karuvadikuppam, Puducherry and their age range between 14 to 16 years. The physiological variables confined to this study were maximum oxygen consumption and percent body fat were selected as criterion variables were assessed using Cooper’s twelve minutes run/walk test and skin fold measurements, before and after the experimental treatment for six weeks. The data collected thereof on maximum oxygen consumption and percent body fat were statistically analysed using paired ‘t’ ratio. The result of this study showed that significant improvement on maximal oxygen consumption and significant reduction on percent body fat. This study showed that six week of aerobic exercise significantly minimizes the cardiovascular risk among obese school children.
