The Relationship Between Isokinetic Knee Strength andJumping inYoung Male Volleyball Players

Year 2019, Volume: 21 Issue: 1, 12 - 15, 30.04.2019

Barbaros Çelenk Elif Öz Akif Gökhan Öner Elvan Öz

https://doi.org/10.15314/tsed.521569

Cited By: 3

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 (body height, body weight, body mass index)
were determined, vertical jump heights were measured and at low (600/sec)
and high (3000/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 (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 (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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