A Danish study using a very large group of novice runners shows no correlation between moderate levels of pronation and an increased risk of injury, and suggests that the common practice of choosing running shoes based on foot type, is flawed. 

A Popular Myth About Running Injuries

By Gretchen Reynolds

Almost everyone who runs (or has shopped for running shoes) has heard that how your foot pronates, or rolls inward, as you land affects your injury risk. Pronate too much or too little, conventional wisdom tells us, and you’ll wind up hurt. But a provocative new study shows that this deeply entrenched belief is probably wrong and that there is still a great deal we don’t understand about pronation and why the foot rolls as it does.    Read More »