The effectiveness of motion control systems in preventing running-related injuries.

Introduction
Foot pronation is believed to be a strong risk factor for running-related injuries (RRIs) (Richards, Magin, & Callister, 2009). Consequently, runners with pronated feet are usually advised to wear shoes with motion control systems (MCSs). However, a recent prospective cohort study on more than 900 novice runners suggested that pronation is actually not a risk factor for RRI (Nielsen et al., 2014). In addition, a systematic review concluded that the prescription of specific shoe types to distance runners is not evidence- based (Richards et al., 2009). In fact, very few studies have investigated the association between MCS and the risk of RRI. Therefore, until now, a clinical consensus as to whether or not MCS is protective against RRI has not yet been reached.
Purpose of the study
The purpose of this study was to determine if runners using shoes with MCS have a lower risk of injury than those using standard neutral shoes, regardless of their foot type. Additionally, this study investigated if the association between MCS and RRI depends on foot morphology.