Shawn Brock on Instagram: "Subscapularis release — this deep rotator cuff muscle originates on the anterior surface of the scapula (subscapular fossa) and inserts onto the lesser tubercle of the humerus. It’s a primary internal rotator and key stabilizer of the glenohumeral joint, helping keep the humeral head centered during movement. When it’s tight, it can limit external rotation and contribute to anterior shoulder tension. I work it with the client supine, accessing the anterior scapula, tak