Forefoot Plantar Pressure Distribution Character during Inversion Position

Abstract

This study analyzed the plantar pressure distribution character as the foot position between normal to inversion. Eight healthy male volunteers have participated in the test with the foot position from normal to 20 inversion angles which controlled by wedges. The results of this test showed that the centre of the pressure was clearly transferred from centre to lateral side when the foot position was changed from normal to inversion. In addition, the contact area varied largely between the normal and inversion condition, but changed a little between two inversion loading situations. The finding of this study suggests that the foot injuries could attributed to more of inappropriate foot positioning than the magnitude of loading force.

Peroneal muscle activity during different types of walking

“…1a ). The ground reaction force (GRF) is distributed on the lateral side of the inverted foot [ 25 ], therefore only a small peroneal muscle force is needed to keep the foot in equlibruium. When the lateral part of the foot is elevated, the foot effectively touches the inclined ramp only with the medial part (Fig.…”