[7–9] Specifically, several researchers [10–13] hypothesized that the stiffness of specific muscles (rotator cuff) may contribute to posterior shoulder stiffness. These potential mechanisms ...

Repeat. Despite the name, this deltoid muscle workout is done on land. Dr. Krupa says you'll feel it most in the posterior delts. "It trains the rotator cuff to stabilize the shoulder," Dr. Krupa ...

Impingement symptoms may be the result of rotator cuff pathology, shoulder instability, scapular dyskinesis or muscle dysfunction, biceps pathology, SLAP lesions and chronic stiffness of the posterior ...