This research aims to determine the effect of circuit training on increasing VO2 Max in extracurricular football students at SMA Negeri 5 Soppeng. The population of this study were all students of SMA Negeri 5 Soppeng with a research sample of 20 students selected as a total population and a group division system using ordinal maching. The data analysis techniques used are descriptive, data normality tests, homogeneity tests and t-tests using the SPSS program. The research results show that; There is an influence of circuit training on increasing VO2 Max in extracurricular football students at SMA Negeri 5 Soppeng. Increase in VO2 Max in extracurricular football students at SMA Negeri 5 Soppeng with an increase from an average score of 30.2500 to 44.3100.
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