Strengthens the flexor muscles of the hip, neck and abdominals
- Lie on a swiss ball with your lower back comfortably supported by the ball
- Draw your belly button in towards your spine and squeeze your buttocks so that your hips/pelvis lift off the ball slightly
- Keeping your buttocks tight, slowly crunch up lifting one vertebrae off the ball at a time, forcefully exhale
- Return slowly to the starting position as you inhale and repeat for twenty reps