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Hollywood's On-The-Go Fitness Tricks!

Stroller-pushing! Grocery shopping! Heidi Klum, Halle Berry and more are leaving the gym behind and getting fit on the fly

HEIDI'S READY TO ROLL

Could Klum's supermodel figure owe something to a little on-the-go cardio? Pushing a stroller gives your body a mild aerobic workout – plus it's the perfect arm-toner.