Wallack is coauthor of "Barefoot Running Step by Step" and "Bike for Life: How to Ride to 100." In the old days of running (that is, three years ago), figuring out what running shoe to buy was simply ...
In the old days of running (that is, three years ago), figuring out what running shoe to buy was simply a matter of determining whether you were a pronator, supinator or neutral runner. Today, however ...
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