Whether you’re an amateur or a pro, choosing the right running shoe helps you avoid injuries. Here are some tips: Try on shoes in the evening, when your feet are at their largest. And bring along a pair of running socks. Make sure there’s a half inch between the longest toe and the end of the toe box. Take a “test run” in the store to make sure they’re comfortable. Replace shoes every six months or 600 miles. Physician and Sportsmedicine