The shoulder is a ball-and-socket joint that connects the upper arm bone to the shoulder blade. Four muscles attach to the bones of the shoulder joint, and these form the rotator cuff. Performing certain rotator cuff exercises can help prevent injury to this part of the body.The rotator cuff has many functions. The muscles do the following:. center the upper arm bone in the socket of the shoulder joint and hold it there. power arm and shoulder movementsThe shoulder is the most mobile joint in the body.

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This degeneration naturally occurs as we age. Rotator cuff tears are more common in the dominant arm. If you have a degenerative tear in one shoulder, there is a greater likelihood of a rotator cuff tear in the opposite shoulder - even if you have no pain in that shoulder. Several factors contribute to degenerative, or chronic, rotator cuff tears.

Iconic. It is possible to misuse or overuse the joint, which makes it very easy to injure the rotator cuff and other parts of the shoulder.People can help prevent injuries by doing exercises to keep the rotator cuff muscles strong and flexible.