1. Rest your body on the ball in a way
that your neck, head, and part of your shoulders do not
touch the ball. Hold your head up by placing both arms
behind your head.
2. While keeping your body steady on
the ball, lift your head up as if you were doing a regular
crunch.
3. Lower your head back down to starting
position.
Tip: To avoid bending your neck forward
and straining it, try keeping your eyes on the ceiling
while doing the crunches.
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