"There has to be one best way of running. It's got to be like a law of physics." Alberto Salazar: U.S. Olympian, 3-time New York City Marathon Champ, current head of Nike elite project.

Wow. In this remarkable interview , one of America's top distance-running minds is suggesting that cushioned shoes are the cause of running injuries, not the cure. Some 85% of all runners who use running shoes land on their heels, a style of running that's impossible without cushioning, while 100% of barefoot runners land on their mid-to-forefoot. Eliminate the conditioned shoe, and you eliminate heel strike. So should you rely on shoes to fix your problems and just "run the way you run" —...