The effect of bench press and resistance band exercises on increasing arm muscle power and gyaku tsuki's punching speed results

The aim of the research is to determine the effect of bench press and resistance band training on increasing arm muscle power and the results of gyaku tsuki punch speed in Lemkari Dojo karate athletes at Junior High School No 4 Medan in 2023. This research uses quantitative experimental methods. The population is 40 people and the research sample is 10 people. Dojo Lemkari karate athletes at Junior High School No 4 Medan by taking samples using purposive sampling technique. Data analysis techniques for normality test, homogeneity test and t-test. Based on the results of the push up test, the hypothesis test obtained a t test value = 60.902 > 1.894, the results of the Gyaku Tsuki punch speed test for the hypothesis test obtained a t test value = 78.125 > 1.894. The results of the research show that there is a significant effect of bench press and resistance band training on increasing arm muscle power and the results of gyaku tsuki punching speed, which is supported by consistent implementation of training with appropriate intensity levels, so as to increase muscle power and punching speed periodically.