Double Ab Challenge!
Double up on your ab challenge with this crunch-plus exercise. Begin lying on your back on the floor. Hold a stability ball between your ankles and knees. Next using both legs lift the ball up off the floor and stabilize your hips and legs. ThenĀ perform a traditional abdominal crunch. Holding your legs still while performing a crunch adds an extra ab challenge.
*Consult your physician before performing exercise.