The scapula plays a very important role in shoulder function and efficient movement.
The main stabiliser:
- levator scapulae
- serratus anterior
of the scapula must dynamically position the glenoid, so that efficient glenohumeral movement can occur.
When dysfunction is present in the scapular musculature, shoulder function is inefficient, and in further consequence the subacromial space is decreased, which is called “shoulder impingement”.
That can result not only in decreased performance but also may predispose to shoulder injury.