ランニングにおける地面反力に対する等価接地剛性行列の算出(身体・運動解析)

概要

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The purpose of this study was to calculate an equivalent stiffness matrix with respect to ground reaction force during running motion. Eight Subjects' 2-D images for the motion analysis and ground reaction forces were recorded by using a high speed camera and two forceplatforms. The angular velocities which contribute to vertical direction movement were extracted from joint angular velocities using Jacobian Matrix. Joint stiffness of each joint was calculated from a joint torque and the angular velocity. An equivalent stiffness matrix on center of pressure was transformed from the joint stiffnesses. At comparison of heel striker with forefoot striker, differences were observed at the equivalent stiffness matrix. The results of this study suggest that the equivalent stiffness matrix has a potential to quantify the characteristics of runners and running forms.
一般社団法人日本機械学会の論文
2004-11-09