Lie on your front on a step box / bench, wrapping your arms underneath in order to pull yourself tight onto the bench, to help protect your back.

With your legs extending back, grasp a suitable sized Swiss Ball, between your feet, lifting the ball 6 - 10 inches off the floor.

Smoothly raise the ball a further 6 - 10 inches in a slow controlled motion, focusing on keeping your legs straight, using the muscles of your glutes to lift and lower your legs.

If you feel any discomfort at anytime, stop immediately.

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