The Relationship between Arm Muscle Explosive Strength, Leg Muscle Explosive Strength, and Abdominal Muscle Strength on Volleyball Smash Performance in High School Students

Abstract

The purpose of this research is to establish the extent to which the explosiveness of the arm muscles, the explosiveness of the leg muscles, and the strength of the abdominal muscles have an impact on the results of volleyball smashes at SMA Negeri 8 Medan. Quantitative route analysis is the method that is utilized in this research approach. All the students that are enrolled at SMA Negeri 8 Medan make up the study population, whereas the research sample is comprised of students who have satisfied the criteria, which can number up to eighty individuals. The methodologies that were utilized in this study for the purpose of data gathering included two hand medicine ball put tests, vertical leap, sit-ups, and volleyball smash tests. To the data analysis method, the t test was utilized with the assistance of the SPSS application. It was discovered, based on the findings of the study, that the degree of influence that arm muscle explosiveness had on volleyball smash in students from SMA Negeri 8 Medan was 18.9%. 26.4% of the students at SMA Negeri 8 Medan believe that leg muscle explosiveness has a significant impact on their ability to smash while playing volleyball. 16.4% of the students at SMA Negeri 8 Medan indicate that the strength of their abdominal muscles has a significant impact on their ability to smash the volleyball.