Aim of the study is to compare strength, balance and mobility between obese and non-obese adolescents. Weight, height and BMI for age are parameters for assessment of nutritional status in children. In obese children, skeletal muscle changes and development of muscle function are seen. A sample of 40 adolescents 20 obese and 20 non-obese is collected from random population. Participants were assessed for height and weight for calculating their body mass index. Balance was assessed with Star Excursion Balance Test and Timed up & go test (TUG) for mobility and Standing Long Jump Test for strength. Present study conducted between obese and non-obese among the age group 11-16 years shows hardly any significant associations between variables of balance, mobility, and lower extremity muscle strength. The children with increased BMI affects the balance, strength and speed i.e. mobility. There is not much significant correlation between obese and non-obese adolescents.