Effect Of Scapular Dyskinesis On Scapular Functionality And Back Endurance In Elite Women Handball Players

Abstract

PURPOSE: In professional handball players, accurate scapulohumeral rhythm is crucial for the prevention of overhead shoulder injuries. Additionally low back strength and endurance transfer power to scapular and upper part of body via posterior fascia chain. The aim of this study was to investigate the difference between handball players with scapular dyskinesis and without scapular dyskinesis regarding to functionality and back endurance. METHODS: Forty-one elite female handball players were included in the study. Sixteen women (mean age: 22.5±6.4yrs BMI: 22.5±2.7kg/m2) who has scapular dyskinesis according to lateral scapular slide test (LSST) as Group 1, 25 women (mean age: 22.5±6.4yrs, BMI:21.8±2.0kg/m2) who has no scapular dyskinesia according to LSST as Group 2 divided into groups. Davies Test and Closed Kinetic Chain Upper Extremity Stability Test (CKCUEST) were used for the measurement of scapular functionality and Sorensen Test for the measurement of back extensor endurance. Mann-Whitney U test was used to compare the mean values between the groups. RESULTS: There were no statistically significant differences in CKCUEST and Davies tests between both groups (p> 0.05). There was statistically significant difference in favor of Group 2 according to Sorensen test between both groups (p = 0.026). CONCLUSION: Endurance of the trunk extensor muscles seems to have influence in scapular dyskinesis in elite female handball players. Besides, functionality of upper extremity in scapular dyskinesis needs to future studies for handball players.