The purpose of the study was to find out the effect of progressive resistance training and Plyometric training on explosive strength, cardiovascular endurance and body composition among teen age boys. To achieve this purpose, 60 male students were randomly selected. The age of the subjects were ranged from 15 to 18 years. The subjects were further classified at random into three equal groups of 20 subjects each. Group - I acted as control, group - II underwent resistance training for three days per week and group - III underwent Plyometric training for three days per week for twelve weeks. The selected criterion variables namely speed, muscular endurance and body composition were assessed before and after the training period. The collected data were statistically analyzed by using Analysis of Covariance (ANCOVA). When the F ratio of the adjusted post test mean was found to be significant, Scheffe's post hoc test was employed to find out the paired mean difference. All the data were analyzed using SPSS statistical package. From the results of the study it was found that there was a significant improvement on explosive strength, cardiovascular endurance, and significant reduction in body weight, BMI percent body fat among the experimental groups when compared with the control group