Anybody that repeatedly performs an overhead motion during the course of their job or during the day is susceptible to a rotator cuff injury.
The risk of rotator cuff injury also increases as you get older. While rehabilitative therapy itself cannot heal a torn rotator cuff tendon, it does strengthen the shoulder muscles and restoring shoulder mechanics. By strengthening all the surrounding muscles, therapy can help compensate for the damaged tendons and improve the mechanics of the shoulder joint.