Three-dimensional analysis of scapular kinematics during arm elevation in baseball players with scapular dyskinesis: Comparison of dominant and non-dominant arms

摘要

Background: The knowledge of 3-dimensional (3D) scapular kinematics is essential for understanding the pathological lesions of shoulder and elbow in throwing athletes. To date, a number of studies about alterations of static scapular position, dynamic scapular motion, or scapular dyskinesis have been conducted, yet none of them have identified a consistent pattern of altered scapular kinematics in throwing athletes. The purpose of this study is to analyze the 3D scapular kinematics of dominant and non-dominant arms in baseball players with a pathological condition of shoulder or elbow.