04/26/2024
As in orthopedic Massage Therapist, ( www.comfortmassagela.com )
who works with swimmers, this is a valuable topic to be educated on. ✏️📚
I encourage all who swim, to schedule an appointment for an assessment and massage work to help promote HEALTHY “scapulohumeral rhythm” and ! learn why it can PREVENT major injuries of the shoulder joint.
READ BELOW
——————
The Scapulohumeral Rhythm
Introduction
The scapulohumeral rhythm is a critical component of shoulder mechanics, enabling the shoulder to have the greatest range of motion of any joint. The scapulohumeral rhythm is the coordinated movement between abduction at the glenohumeral joint and upward rotation at the scapulocostal (also called scapulohumeral) articulation. The scapulocostal articulation, while not an actual synovial joint, is the area where the scapula articulates with the posterior rib cage.
The scapula and humerus must move in a coordinated pattern during shoulder abduction. With full abduction of approximately 180 degrees, there will be about 120 degrees of glenohumeral abduction and 60 degrees of scapular upward rotation. These combined movements result in a 2:1 ratio between the glenohumeral joint and the scapulocostal articulations. This combined movement allows the glenoid fossa to maintain an optimal position for the humerus to fully abduct without hitting the underside of the scapula’s acromion process.
