Effects of Varying Amounts of Pronation on the Mediolateral Ground Reaction Forces During Barefoot Versus Shod Running

Authors

Joanna B. Morley, University of Nebraska at Omaha
Leslie M. Decker, University of Nebraska at Omaha
Tracy Dierks, Indiana University
Daniel Blanke, University of Nebraska at OmahaFollow
Jeffrey French, University of Nebraska at OmahaFollow
Nikolaos Stergiou, University of Nebraska at OmahaFollow

Document Type

Article

Publication Date

5-2010

Abstract

Despite extensive research on running mechanics, there is still a knowledge gap with respect to the degree of relationship between mediolateral ground reaction forces (ML-GRF) and foot pronation. Our goal was to investigate whether differences exist in ML-GRF among runners that exhibit different degrees of pronation. Seventeen male and 13 female recreational runners ran with and without shoes while ML-GRF and frontal kinematics were collected simultaneously. Subjects were divided into groups based upon their peak eversion (low pronation, middle pronation, high pronation). Discrete parameters from the ML-GRF were peak forces, respective times of occurrence, and impulses. No significant differences were found between groups regarding the magnitude of ML-GRF. Based upon the relative times of occurrence, the peak medial GRF occurred closer to the peak eversion than the peak lateral GRF. Findings support the idea that the ML-GRF have less to do with pronation than previous research suggested.

Journal Title

Journal of Applied Biomechanics

Volume

26

Issue

2

First Page

205

Last Page

214

Recommended Citation

Morley, Joanna B.; Decker, Leslie M.; Dierks, Tracy; Blanke, Daniel; French, Jeffrey; and Stergiou, Nikolaos, "Effects of Varying Amounts of Pronation on the Mediolateral Ground Reaction Forces During Barefoot Versus Shod Running" (2010). Journal Articles. 11.
https://digitalcommons.unomaha.edu/biomechanicsarticles/11