The bones that comprise the shoulder complex and shoulder joint are the clavicle, scapula and humerus. The Rotator Cuff Muscle that is most commonly injured is the supraspinous muscle.
Proper physical conditioning is of major importance in preventing many shoulder injuries. Proper warm up must be performed gradually before explosive arm movements are attempted.
Shoulder Strain (Rotator Cuff Injury)
Overuse and repetitive motions can cause rotator cuff injuries. Sports that involve throwing or violent arm movements (i.e. tennis) can cause shoulder strain.
The rotator cuff is a group of muscles and tendons around the shoulder joint. The injury affects muscles or tendons that attach to your shoulder bones.
A mild strain is a slight muscle pull that doesn't tear muscle or tendons. A moderate strain tears the muscle or tendon where it is attached to the bone. A severe strain ruptures the muscle-tendon-bone attachment.
Symptoms of a pulled or strained shoulder include:
- pain upon moving or stretching your shoulder
- muscle spasms and swelling
- strength loss
| 
