PHILADELPHIA (CBS) – The Broad Street Run was last Sunday and the Susan G. Komen Race for the Cure is this Sunday. So what if you run, and your feet hurt?

Phil Clark, a Yale graduate, is training for the Olympics and has trained as an athlete at the international level. He’s been studying feet and the way people run for years. Clark will have a runner jog on a treadmill, videotape it, then study it. He says many pain problems stem from people wearing the wrong size shoe.

“Just about everybody assumes that their casual shoe size matches their running shoe size, or their athletic shoe size, and that’s not accurate. Athletic shoes run at least a half size up to a size and a half longer than any casual shoe.”

Clark operates the Training Station at the Piazza, and says he takes at least six and sometimes as many as 12 measurements of their feet. One client thought she was a size 8B. It turns out, her real size was a 7EE.

You can hear the interview with Phil Clark in the podcast below.

Reported by Kim Glovas, KYW Newsradio

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