How To Fix Your Rotator Cuff

Quick Overview

To fix anterior shoulder pain often caused by weakness in the subscapularis muscle, the key is to improve internal rotation mobility by specifically strengthening the subscapularis muscle, which is frequently neglected, using a cable external rotation exercise performed in a half-kneeling position.

Key Points: Front shoulder pain is frequently linked to weakness in the subscapularis, a key internal rotator muscle that is often neglected. A proper assessment for internal rotation involves lying on your back with the elbow at shoulder level and measuring the angle; a score of 60 degrees or less suggests a limitation, while 80 degrees or more is considered normal. Tightness in muscles that pull the shoulder forward into a rounded, compensatory position (like the Lats attaching to the humerus) contributes to this lack of internal rotation space. An effective technique to open up space involves using a cable machine attachment set as high as possible while in a half-kneeling position. The exercise requires pinning the backside of the arm against the cable pull, ensuring the elbow starts at shoulder height. Perform the movement by rotating the forearm toward the body, stopping just before the shoulder starts moving forward or you lose core tension, and aim for 8 to 10 sets of 8 to 10 breaths/repetitions. If internal rotation is severely limited (e.g., less than 60 degrees on the test), perform the cable exercise only to the point where you can maintain core tension and avoid forward shoulder movement.

Context: This video addresses the common issue of anterior shoulder pain, identifying a primary underlying cause as weakness in the subscapularis muscle, which is responsible for internal rotation of the humerus. The instructor uses anatomical models (a 3D rendering and a physical skeleton) to locate the subscapularis, which runs on the underside of the shoulder blade and attaches to the humerus, and then demonstrates a specific exercise to improve the limited internal rotation often associated with this pain.