Start: Kneel behind the ball, and then roll forward over it, walking with your hands until your thighs are resting on the ball. Press out gently into the floor with your hands, and lengthen from the top of your head to your toes so that your body is in a straight line.
Movement: Maintaining a straight body line, press your right thigh down into the ball and use this to roll the ball to the left under your body. Allow your pelvis to turn with the ball's movement. Return to the centre and repeat to the other direction.
