Differences in the effects of plyometric squat jumps and bileg band training on leg strength increases in volleyball players of different gender

Abstract

Background and purpose This study aims to determine differences in the effects of plyometric jumps, squats, and double leg band training on leg muscle strength gains in volleyball players of different genders. Material and methods This study was conducted at SMP Negeri 3 Karanganyar, Jalan Lawu No. 86, Ngarjosari, Karanganyar Regency, Central Java. This study was conducted over a six-week period, beginning February 5, 2024, and ending March 16, 2024, with meetings occurring three times per week on Mondays, Wednesdays, and Fridays. The experimental method is chosen to identify certain symptoms through an intervention carried out on a test sample. An experiment is a design that allows researchers to simultaneously study the effects of two or more types of experimental variables. Results After the analysis in the group of men, an increase in leg strength indicators was obtained as a result of the experiment by 2.468%. Meanwhile, in the group of women, an increase in leg strength indicators was obtained as a result of the experiment by 2.892%. Comparing the two female groups, there is a higher percentage increase than the male groups, which is 2.892% in females compared to 2.468% in males. Thus, the female group showed a more pronounced increase in results than the male group, with a significance of p < 0.05. Thus, hypothesis 2 «there is a difference in the growth of leg muscle strength as a result of training using plyometric exercises in male and female students» is accepted. Conclusions Significant differences in the indicators of leg muscle strength increase in male and female volleyball players as a result of the use of special training were revealed. This is evidenced by the average increase in leg muscle strength in men by 2.468%, and in women by 2.892% at p < 0.05.