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Welcome to Racked's Fitness Week: five days of workout coverage, so that you can start your New Year's resolutions off right.

We've already conquered where to buy yoga pants in this city—today we're honing in on gear for the original cardio party: running. All eight stores on our list offer gait analysis (that cool thing where they video tape you running on a treadmill) and shoe fitting, as any good running store should. After the jump, find out who has the most sports bras, where to suit up for a triathlon, and who's making house calls in Brooklyn this month.