仮想足圧中心位置が跳躍動作における関節トルク算出に与える影響

The culculated leg joint torque’s behavior during vaulting when the COP is assumed to be fixed.


佐野真也
Shinya SANO

Abstract

The aim of this study was to describe the culculated leg joint torque’s behavior during vaulting when the centre of pressure (COP) was assumed to be fixed. The subject vaulted on the springboard used in the vaulting of gymmnastics. The board reaction force (BRF) acting on the gymnast was calculated by subtracting the inertial force of the springboard from the ground reaction force. The ankle, knee and hip joint torque were calculated by assuming the COP was fixed in two ways. The ball of foot and the centre between toe and heel were used for the fixed COP. There were large difference between two type of calculated joint torque. This suggests that the accuracy of the COP is important for calculate the joint torque.

Keywords : 支持脚，跳躍板，体操競技，逆動力学