Brown University and Harvard University scientists created a 3-D model of a gliding pigeon, put alligators on a treadmill, and examined rare Chinese fossils to better understand the evolution of ...

Many people have heard the term shoulder instability but have wondered what that means. So, what is shoulder instability? Many structures are responsible for stabilizing your shoulders. This includes ...

The shoulder is a complex joint made up of ligaments, tendons, and muscles. Sustaining damage to any of these tissues can result in pain. Persistent, or chronic, shoulder pain can interfere with a ...

A hyperextension joint occurs when a joint moves beyond its typical range of motion. These injuries occur most often in the knees, ankles, elbows, shoulders, neck, and fingers. Share on Pinterest ...

Shoulder subluxation is a partial dislocation of your shoulder. Your shoulder joint is made up of the ball of your arm bone (humerus), which fits into a cup-like socket (glenoid). When you dislocate ...

Pain in the right shoulder and arm is often due to muscle, tendon, or ligament damage, or due to damage to the peripheral nerves in those areas. In some cases, it could be a sign of a heart attack.

PROVIDENCE, R.I. — Brown and Harvard scientists have learned that a single ligament at the shoulder joint stabilizes the wings of birds during flight. In an advanced online publication of Nature, they ...