方向転換動作における足部アーチ変形の定量化

Abstract

In order to improve performance and prevent foot disorders, it is necessary to understand the characteristics of the foot deformation and to study the relationship between mechanical properties. However, most studies regarding the foot deformation and mechanical properties during movement have focused on walking and running along a straight line, and there are no studies on lateral movements such as cutting maneuver, which are usually seen in ball games. The aim of this study was to investigate the effect of changes of direction angle on foot arch deformation by quantifying foot arch deformation during cutting maneuver, which are expected to have different deformation characteristics compared to walking and straight running. The results of this study suggest that: 1. they have different deformation patterns during ground contact between the medial longitudinal arch, and midfoot and forefoot transverse arch; 2. compared with straight running, the deformation of the medial longitudinal arch increased, and the deformation of the midfoot and forefoot transverse arch decreased during cutting maneuver.