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Scapulohumeral Rhythm Blog Post 3

Scapulohumeral Rhythm

Scapulohumeral Rhythm is clinically important because it is the optimal function of the shoulder by allowing optimal length tension relationships. Scapulohumeral Rhythm is the ratio of movement between the scapula and the humerus.  Every time the scapula moves one degree the humerus moves 2 degrees. The humerus must coordinate with the scapula to provide a smooth ROM, which is 180 degrees without compromising the stability of the joint.  Without Scapulohumeral Rhythm there would be impingements in flexion and abduction. Also, allowing for synchronic measurements. These measurements can help you when you’re measuring a clients ROM to see if there are abnormalities.  

http://www.geocities.ws/ptexas9/scap-rhythm.html

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