The shoulder muscles are responsible for maintaining the widest range of motion of any joint in your body. This flexibility is also what makes the shoulder prone to instability and injury. Muscles ...

Your deltoid muscles make up a main muscle group in your upper body. They’re connected with many other muscles and bones in your upper back , neck, and shoulder region and are extremely mobile.

The head of your upper arm bone, also called the humerus, fits into the socket of your shoulder blade, or scapula. When you extend your arm out away from your body, the rotator cuff muscles keep ...

Various theories exist regarding the mechanisms of stiff shoulder (SS). Potential etiological factors are adhesive capsulitis, [1] decreased capsular volume, [2,3] capsular contractions, [4 ...

These muscles and other tissues make your shoulder the most mobile joint in your body. They allow it to move in many different directions. Causes of Infraspinatus Pain ...

Most experts don’t think muscle knots cause irreversible damage to your body, but they can impact your ability to move comfortably and contribute to chronic pain. How do you get rid of them?