Balance is the ability to maintain a state of equilibrium and is one of the critical underlying elements of movement that facilitates the performance of functional skills. The physical therapist must determine if the child possesses adequate functional balance to safely meet the demands of everyday life at home, in school, and within the community. There is a need to measure balance toquantify balance ability in adolescents. Sport is the leading cause of injury requiring medical attention among adolescents and with reduced balanced there is even more chances of occurance of injuries. Research has concluded that Pediatric Reach Test is a valid and reliable tool to measure balance and that sports training reduces incidence of injuries due to falls. The objectives of this study are: To assessthe effect of PRT values in sedentary school children. To assess the effect of PRT values in non sedentary school children. To compare the Paediatric Reach Test values in sedentary and athletic school children.