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. http://ift.tt/eA8V8J November 25, 2015 at 01:15AM
from Diet & Fitness - Health.com http://ift.tt/1OeaEh2
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