Resistance training is gaining importance in weight loss programmes. The objective was to assess the effect of 12-24 weeks of resistance training on the body composition in both males and females. The cross sectional analytical study was performed on 286 participants including 244 males and 42 females in the age range of 18-49 years. All participants took part in a supervised resistance training program (4 - 6 d/week) for the duration of up to 6 months. The anthropometric and body composition parameters (height, weight, fat% & BMI) were measured at base line and periodically. The body composition parametes were measured by bioelectric impedence method. The mean values for each parameter were compared at 0 weeks, 12 week & 24 weeks using one way annova & post hoc test. There was significant decrease in weight, fat% and BMI (p values 0.004, 0.000, 0.001 respectively) in males after 12 weeks of resistance training and the change was more significant after 24 weeks of training (p values 0.001, 0.000, 0.000 respectively for weight, fat % and BMI). In females the change in body weight was not significant after 12 weeks but was significant after 24 weeks of training (p0.048). In case of fat % significant change seen after 12 as well as 24 weeks of training (p0.000, 0.000).With respect to BMI significant change was observed after 24 weeks of training (p0.022).From our study it is evident that 24 weeks of resistance training significantly alter body composition in males as well as female participants.
