1. Lie supine on the floor, back flat legs long, arms extended above your head
2. Place the stability ball between your feet and apply pressure creating a clamp between your legs
3. Hinging at the hips raise the ball towards your midline as you simultaneously raise your arms and upper body - keeping your legs and arms at full extension - this is your start position
4. Grab onto the ball with your hands, lower legs and arms towards the ground - this is your end position
5. Return to start position, repeat desired number of reps

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