WHAT IS A ROTATOR CUFF?
Your rotator cuff is a group of muscles and tendons that hold your shoulder joint in place and allow you to move your arm and shoulder. Pain and other issues can occur when part of the rotator cuff becomes irritated or damaged. This can result in tenderness, weakness and reduced range of motion.
There are four tendons that stabilize you shoulder joint and help you to lift your arms above your head. These tendons connect to the four muscles that move in your shoulder. Rotator cuff damage occurs from an acute injury or as a result of repetitive strains and wear and tear to these tendons.
Generally, injuries occur to sports players that make repetitive, overhead movements, such as tennis. Minor strain injuries can progress to a partial tear of the tendons or a complete rupture of the muscles with loss of shoulder joint function.
Sometimes a complete tear can also happen in older adults who are less active.