Exercise balls are a great way to shake up your workout. Roll one behind your back for a wall sit, a gentler version of a squat. Or put your feet on the ball for a push-up that seriously challenges your core.
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Exercise balls are a great way to shake up your workout. Roll one behind your back for a wall sit, a gentler version of a squat. Or put your feet on the ball for a push-up that seriously challenges your core.
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