The effect of circuit training program on physical fitness level in volleyball club athletes IPK Kuamang

Abstract

The aim of the study is to determine how circuit training affects the fitness of volleyball players. This research employs an experimental approach using a "one-group pretest-posttest design". The research instrument is the TKJI (Indonesian Physical Freshness Test) tailored for the age group of 16-19 years. The study population comprises volleyball players from the IPK Kuamang club, with a total of 20 individuals. Sampling was conducted using a targeted sampling technique, and the sample consisted of 10 individuals. Data analysis was carried out using the Liliefors normality test and t-test with a significance level of α = 0.05. The results indicated a significant effect of circuit training on physical fitness, as evidenced by an average pre-test score of 12.3 and an average post-test score of 15.2. This conclusion is supported by the finding that t_count = 13.1 > t_table = 1.833 after completing the t-test. Therefore, H0 is rejected, and H1 is accepted. Hence, circuit training significantly impacts physical fitness.