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2-Week Belly Flattening Routine
Don't let that big ball collect dust! Its unstable surface offers a superior workout that'll tighten up your core and tone you all over in less time than traditional strength-training moves. | Fitbie.com
Ball pull-in For core, chest, and shoulders A. Kneel with stability ball in front of you, then walk hands forward, rolling up on the ball until it’s beneath your shins and your body forms a straight line from your head to your feet. B. Keep upper body stationary, and pull ball in toward chest with both legs. Return to extended position to complete 1 rep. Do 3 sets of 10–12 reps, resting for 30 seconds between sets.