Efficacy of motion control shoes for reducing excessive rearfoot motion in fatigued runners

Abstract Objectives Excessive foot pronation and fatigue in running are possible risk factors for injuries. Motion control footwear was designed to limit excessive foot motion in runners, but its clinical efficacy has not been well reported. This study investigated the rearfoot kinematics in runners when running with different footwear before and after fatigue of the lower leg muscles. Design Within subjects repeated measures. Setting University gait laboratory. Participants 25 female recreational runners. Main outcome measures A Vicon three-dimensional motion analysis system was used to capture the rearfoot motions of 25 recreational runners who had excessive foot pronation, when running with motion control shoes and neutral shoes before and after fatigue of the lower leg muscles. Results The findings with neutral shoe testing revealed a significant increase in rearfoot angle of 6.5° (95% CI 4.7–8.2°) ( p p =0.06) in subjects before and after muscle fatigue. Moreover, rearfoot motion when running with neutral shoes was higher than that with motion control shoes in both pre- ( p p Conclusions Motion control shoes can control excessive rearfoot movements in runners with over-pronation regardless of the state of leg muscle fatigue.

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