A man and woman run along a roadside bicycle path. The man wears barefoot running shoes and hence uses a fore-foot strike while the woman strikes the ground heel first since a more cushioned shoe accomodates this running technique. For more information on how the toe (aka barefoot) running shoes have changed people's running style, please read, <a href="http://www.livescience.com/8053-running-shoes-changed-humans-run.html" rel="nofollow">Running Shoes Changed How Humans Run</a>, by Rachael Rettner.
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