Do Isokinetic Strength and Shoulder Mobility Influence Ball Velocity? A Study of Female Badminton Players

The working group of the current study which aims at investigating the relation of isokinetic strength, shoulder mobility and ball velocity at elite female badminton players was made up of 28 female badminton players having the age, body weight and height means; 21,17±3,42 years, 62,47±8,60 kg, 164.31±5.88 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 37.05 ± 7.12, 36.95 ± 6.72, 26.87 ± 7.63, 22.27 ± 7.60 respectively. Dominant internal rotation values of the players were found as 57.37 ± 7.20, dominant external rotation values were found as 103.00 ± 8.08, non-dominant internal rotation values were found as 52.00 ± 4.92, non-dominant external rotation values were found as 97.35 ± 7.88. Shuttlecock velocity (km/h) was 238.45 ± 3.20. As a conclusion, upon the investigation of the correlation values between isokinetic strength, shoulder joint mobility and Shuttlecock velocity at elite female badminton players, a statistically direct re-lation was not found between them at the level of significance.