The Relationship Between Isokinetic Knee Strength andJumping inYoung Male Volleyball Players

Authors : Barbaros ÇELENK, Elif ÖZ, Akif Gökhan ÖNER, Elvan ÖZ

Pages : 12-15

Doi:10.15314/tsed.521569

View : 43 | Download : 10

Publication Date : 2019-04-30

Article Type : Research Paper

Abstract :Volleyball is a dynamic physical game that does not have a definite match duration but is based on high tempo, quickness, strength, flexibility, endurance and jumping. The aim of this study is to research the relationship between isokinetic knee strength and jumping height in young male volleyball players. 8 male volleyball players aged between 18-22 participated in the research voluntarily. In the study, the physical characteristics of the subjects insert ignore into journalissuearticles values(body height, body weight, body mass index); were determined, vertical jump heights were measured and at low insert ignore into journalissuearticles values(60 0 /sec); and high insert ignore into journalissuearticles values(300 0 /sec); speeds, the right and left knee flexion/extension concentric isokinetic strength test was applied. Data was analyzed with paired sample t-test and Spearman correlation coefficient test was used to determine the relationship between vertical jump and isokinetic strength insert ignore into journalissuearticles values(p<0.05);. The right and left knees peak torque of the athletes were compared at low and high angular speeds and no significant difference was found. A significant positive correlation was detected between the jumping height and the right knee peak torque at low angular speed insert ignore into journalissuearticles values(r =.817, p<0.05);. This result can be explained by the fact that quadriceps femoris, which is the biggest muscle of the lower extremity, is in the foreground during the jumps that volleyball players perform frequently. It may be advisable to give importance to leg strength training to increase the jump height. 
Keywords : volleyball, vertical jump, isokinetic strength, peak torque

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