Really define your abs with a stability ball workout. Learn how to do double ab crunches on a ball in this free video clip from a personal trainer.
Expert: Sue Conrad
Contact: www.fitnesscanbfun.com
Bio: Sue Conrad is a personal trainer with a certification through the American Council on Exercise (ACE) since 2001. She currently teaches cardio kickboxing and trains clients of various ages.
Filmmaker: Patrick Eaves
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