It can help keep your muscles strong and your joints moving well.

In extreme cases when the joint does not move at all it is said to be ankylosed.

If this separation is lost, as in a 'frozen shoulder', the joint cannot move.

Each joint can move through an angle within fixed limits, say up to 180 degrees.

Your joint doesn't move as well as it once did.

Limited range of motion is a reduction in the normal distance and direction through which a joint can move.

Visit your health care provider if a joint does not move fully and easily in its normal way.

Exercise to help keep your muscles strong and your joints moving well.

Arthroscopy can help relieve pain for a short time and allow the joints to move better.

Regular physical activity makes muscles stronger and helps joints move more easily.