Stability Ball Crunch (Full Range Hands Behind Head)

How to do the Stability Ball Crunch (Full Range Hands Behind Head)

1. 1Lie on the stability ball with your lower back supported and feet flat on the floor.
2. 2Place your hands behind your head.
3. 3Engage your core and lift your upper body towards your knees.
4. 4Lower your upper body back to the starting position in a controlled manner.

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