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Background: Training is a means to improve physical condition. Many kinds of training can improve physical conditions, including plyometric training.This study aims to test the effectiveness of the plyometric training model to increase the power and reactive agility of karate athletes in the kumite category. Methods: This study utilized an experimental method using a one-group Pretest-Posttest Design. The research sampling used was purposive sampling. The data collection technique in this study consisted of power and reactive agility, which was a standing broad jump test and a standardized reactive agility test. The instrument was given twice to the sample as a pre-test and post-test. The treatment given in this study is in the form of plyometrics modification exercises arranged in an exercise program. Treatment is given for four consecutive weeks with a frequency of 3 sessions/per week. Data analysis in this study used Two Way Anova, which was processed using SPSS version 26. Conclusions:The results of the study were diverse, for the increase in limb power showed no significant differences, and the plot diagram concluded that an interaction effect occurred. As for the increase in reactive agility, there were four items of significant differences, and the plot diagram concluded that there was an interaction effect that occurs.