To stretch and strengthen the muscles of the neck and to mobilise the cervical spine.
Stand with feet apart or sit on a stable chair with your head in neutral position.
Slowly and in a controlled manner push/shift your head directly backwards thereby creating a double chin. At end of range, hold for 5-10 seconds before relaxing to the starting position. Then protrude your neck & chin forwards. At end of range, hold for 5-10 seconds before relaxing to the starting position.
Consult your osteopath before performing this exercise