Investigation of the relationship between arch height and maximum pronation angle during running.

A three-dimensional motion analysis study is performed on 8 subjects running on a treadmill. Medical and lateral longitudinal arch height is measured from a weight-bearing x-ray. A statistical analysis is performed to search for a relationship between arch height and maximum angle of pronation. The data analysis showed a significant relationship (sig. level = 0.0252) between the medial longitudinal arch height and the maximum eversion angle. The data analysis also showed a significant relationship between the lateral longitudinal arch height and the maximum eversion angle (sig. level = 0.0358).