You know that stabbing pain you feel in your shoulder every time you try to lift your arm above your head to reach for something? It’s likely the result of impingement. Impingement is a term used to describe when a rotator cuff or bicep tendon is compressed during shoulder movements, especially with overhead motions. Shoulder instability is the lack of optimal support around the shoulder joint, which is typically caused by an imbalance of shoulder muscle strength or previous injury and can lead to impingement. Programs often include manual hands on techniques to increase blood flow to the affected area, stretching to improve flexibility of the tight muscles, strengthening to restore the balance of rotator cuff muscle strength, and stabilization exercises to ensure the shoulder is secure in various positions to prevent further injury.