The Relation between Isokinetic Strength, Shoulder Mobility and Ball Velocity at Elite Male Volleyball Players

Yasin Arslan,Faruk Albay

doi:10.13189/ujer.2019.070326

Abstract

The working group of the current study which aims at investigating the relation of isokinetic strength, shoulder mobility and ball velocity at elite male volleyball players was made up of 20 male volleyball team players having the age, body weight and height means; 28,40±3,32 age, 83,25±7,80 kg, 192,54±4,20 cm and volunteering in the study. The data obtained in the study was analysed in the package program of SPSS (Statistical Package for Social Sciences) for Windows 22.0. For all variables in the study, Pearson correlation test was applied. In the research, 60˚/sec. dominant and non-dominant, internal and external isokinetic strength values (nm) were found as 70,07±6,20, 66,57±6,12, 40,57±7,90, 39,23±8,49, respectively. Dominant internal rotation values of the players were found as 60,18°±7,58, dominant external rotation values were found as 105,00°±8,47, non-dominant internal rotation values were found as 56,00°±4,07, non-dominant external rotation values were found as 100,71°±8,70. Service speed (km/h) was 70,55±3,66. As a conclusion, upon the investigation of the correlation values between isokinetic strength, shoulder joint mobility and ball velocity at elite male volleyball players, a statistically direct relation was not found between them at the level of significance.

Highlights

Today, volleyball is a sport branch which is in a continual development and comprising complex movements
When considered that a volleyball player spikes about 40.000 times in a competition season [9], it is clearly understood how shoulder strength and mobility are important in volleyball
It was found that the mean age of the elite male volleyball players was 28.40±3.32 age, body weight was 83.25±7.80kg and height was 192.54±4.20 cm in the current study which investigates the relation between the ball velocity and shoulder mobility and the shoulder strength which has a direct effect on the game in volleyball

Summary

Introduction

Volleyball is a sport branch which is in a continual development and comprising complex movements. A total 250-300 movements that requires high level strength are applied in a match with five sets [1]. Strength which is one of the most significant components of a sport in order both to prevent injuries and for a high performance has been a very important motoric feature for volleyball. The mechanism of shoulder joint allows us to align the position of hand in front of the body. In this sense, it controls the elbow joint and helps us with fulfilling the motor functions [2]

Objectives

Methods

Results

Discussion

Conclusion