We’ve all been lead to believe that overpronation is a significant risk factor in the development of running injuries. A recent study published in the British Journal of Spots Medicine appears to contradict that view.
927 novice runners were selected and using the foot posture index (FPI), their foot posture was categorized into highly supinated, supinated, neutral, pronated and highly pronated. Participants were all given a neutral running shoe (Adidas Supernova Glide 3) and Garmin Forerunner GPS watch and followed for 1 year. A running-related injury was defined as any musculoskeletal complaint of lower extremity or back causing restricted running for at least 1 week. 252 participants sustained injury with 63 bilateral injuries.
The study found no significant difference in distance to first running-related injury between different foot postures compared to neutral feet and actually, pronated feet sustained significantly fewer injuries per 1000 km of running than neutral feet
More research is needed, however this is an interesting finding. From: Nielsen et al., Br J Sports Med 48 (2014) 440-447. Copyright BMJ Publishing Group Ltd.