Some runners are pronators, which means their foot to rolls inward too much.
When you run, your foot is supposed to first hit the ground slightly on the outside edge of the shoe and then roll inward slightly to the ball of your foot, allowing your foot and body to absorb the shock. All rights reserved. The material on this site may not be reproduced, distributed, transmitted, cached, or otherwise used, except with the prior written permission of Nutricise. Inc. Please read our Privacy Policy . Use of this site constitutes acceptance of our User Agreement .