For example, the elbow flexes when performing a biceps curl ... Ball and socket joints also allow types of movement called abduction, adduction, rotation and circumduction. Abduction – movement ...

Extension – straightening a joint. This occurs when the angle of a joint increases, for example, at the elbow when putting a shot. Abduction – movement away from the midline of the body.

Demonstrated in this video is completion of the surgical treatment of a disabled throwing shoulder.According to John D. Kelly IV, MD, surgical success of the disabled throwing shoulder is realized ...