How Movement Occur
Movement occurs when a muscle contracts and pulls on a bone and another muscle relaxes to allow a bone to move.
The Six Types of Body Movements
- 1. Flexion – is a bend that decrease angle at two bones.
- 2. Extension – is a movement which straightens there by increasing the angle at a joint (opposite of flexion).
- 3. Rotation – is a movement where the bone is moved around the central axis.
- 4. Abduction – is the movement of a bone away from the center line of the body.
- 5. Adduction – is the movement of a bone towards the center line of the body
- 6. Circumduction – this is all five movements done (possible at the shoulder when we move our arm in a circle.