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Heidi Workout
"Day 3: run-breathe-enjoy! #HKNB"

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Heidi Klum's 5-Day Fitness Routine

June 19, 2013

From running to circuit training, Twitter photos of Heidi Klum's workout routine began streaming in last Thursday with the hashtag #HKNB as part of her New Balance collaboration. Check out these inspiring sporty snapshots to find out some of the supermodel's body secrets. -- By Erin Kim