For example, the elbow flexes when performing a biceps ... or in the back leg as a gymnast performs a split leap. Ball and socket joints also allow types of movement called abduction, adduction ...

The different types of movement that are permitted at each joint are described below. Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes ...

In the Netherlands, a study was conducted amongst all patients that received treatment at the emergency ward of general hospitals between 1998–2001; the injury risk was calculated for different group ...

and then the muscles that span the elbow joint. And when an abnormal force from a direct blow or fall or twisting type of mechanism, any of which could be encountered in a tackle football scenario ...