Your shoulder range of motion is ... can raise your arms over your head. Extension is a movement that increases the angle between the two parts that the joint is connecting.

Hinge joints allow flexion and extension only. Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes when performing a biceps curl.

Tendons are very strong, inelastic connective tissues that allow a muscle to pull on a bone to move it. Four of the synovial joint types are responsible for a range of sporting techniques.