The 30-year-old Belmont, Massachusetts, native injured both feet before the 2002 Olympics, then scored 19th place in 2006. Now the former U.S. champ, who won the World Cup in 2008, is hungry for gold.
Training schedule: Four hours a day when she's not jumping; seven when she is -- every day
Hurts-so-good move: Windshield Wipers: Hang from a bar with your hands, raise legs until toes are almost touching the bar (next to your hands); keep legs together as you twist them to the left and then to the right. Do 20 reps.
Post-workout fuel: Rice or soy-milk shake with fruit and protein-and-carb powder
On her iPod: The Black Eyed Peas' "I Gotta Feeling"
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