走行開始における素早い方向変更時の足圧

概要

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The purpose of this study was to investigate the movement during quick change of directions at initiation of running from plantar pressure of the first step. The subjects were instructed to run to the right (the no-change task) or to turn to the left (the change task) as rapidly as possible after the first stepping on the right foot in the direction of about diagonal 45 to the right. Both tasks performed in two conditions, the self-initiated (SF) condition in which the direction was instructed before the beginning of each trial and the visual stimulus (ST) condition presented the analyzed. The following results were obtained. The pressure of the heel (HL) and the forefoot-left (FF-L) in the change task increased compared to the no-change task. This showed that the subjects changed their running direction to increase the forward braking force in the heel and tha sideward propulsion in FF-L. In ST condition, the pressure of HL and the forefoot-right (FF-R) were greater, on the other side, the pressure of FF-L was smaller. And the duration to apply force on the whole of planta was longer than of SF condition. Moreover, in ST condition, a smaller pressure on the heel and the midfoot, and a longer duration of foot contact on the forefoot were related to quick change of directions. There results suggested how of foot of the first step to take for quick change of directions at initiation of running.
奈良女子大学の論文