Combine two ab-strengthening workouts into one by doing planks on a stability ball. Fitness expert Kristin McGee shows us how to plank on a stability ball for sculpted abs. Watch this video to see how it's done.
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Author Clint Nielsen
Clint is a dad and husband trying to stay in shape. He's also a highly opinionated fitness enthusiast and author of Reveal The Steel. Follow him on: Instagram, Twitter, Facebook and Google+