Methodological considerations in the assessment of shoulder function

Abstract

Introduction: Normal shoulder function requires primarily the efficient and coordinated action of the glenohumeral joint and scapulothoracic articulation. The mobility and partially the stability of the scapula on the thoracic wall and the humeral head on the glenoid fossa depend on the synchronous action of the surrounding musculature. Strength imbalance, muscle weakness or uncoordinated function of these muscles, are some of the factors that have been proposed as possible causes for shoulder pathology. The purpose of this study was to investigate methodological aspects in the assessment of shoulder function.