Rotation – The movement in a circle around a fixed point; revolve
(Note: The different between rotation and pivot - pivot is a fixed pin on the end of which a body turns - rotate turns as a screwdriver or wheel of a car.
You rotate a screwdriver around a fixed point when tightening a screw. Think of this when you think of rotation, as the same principle can be applied to the rotation of your head.
Rotation occurs in the neck. The C1 vertebrae sits atop and rotates around the C2 pivot. We therefore have a rotational movement in the neck around the midline of the body.
Rotation occurs in the leg through the hip joint. Lock out your knee and twist your leg in a straight position. The foot will move out and in to the midline point.
Rotation occurs in the shoulder joint through the arm. Lock out your elbow and twist your arm in a straight position. Your thumb will move away and towards the midline of the body.
Rotation of the body occurs through the joints of the spine. Keeping your spine inline with the mid-line of your body, rotate the top half of your body through approximately 120°.