Start: Shoulders and head resting on a ball, with feet flat on the floor hip width apart. Knees are directly above feet. Bend your hips a little and gently turn your pelvis towards you to pause in a position where the hips are straight but the back is relaxed. Raise both arms and join your hands together.
Movement: Keeping the pelvis as level as possible, turn the upper body so that your shoulder rolls the ball underneath you. Slowly control the return movement.
