What is rotator cuff?
The rotator cuff is a band of muscles that surround the joint formed by the upper arm bone or humerus that connects to the shoulder blade or scapula. The rotator cuff is stiff enough to hold the joint together, but is also flexible enough to allow the arm to reach and lift. Rotator cuff injuries are common among baseball pitchers, tennis players and other athletes who frequently exert an overhand throwing or swinging motion. Non-athletes who engage in frequent lifting or reaching activities, such as stacking cans on a high shelf, can also develop rotator cuff problems.
