Toshikazu Matsui

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So far, it has been shown that the minimum jerk model and the minimum torque change model with fixed end-point boundary condition are effective in reproducing experimental characteristics for human arm's reaching movements. However, the conventional models have no ability to reproduce the spatial variability of final hand-points in the hand trajectories.(More)
A new optimal control model of human arms has been developed to simulate two-point reaching movement characteristics for human three-joint arms (shoulder, elbow, and wrist joints) and its fundamental performance has been clarified. The new model is formulated by extending the previous two-joint modified minimum torque-change model to a three-joint model(More)
We have already formulated a dynamics-switching optimal control model that reproduces human rising movements from a chair, and clarified its effectiveness and the existence of the optimal relation between the model's two factors (input weight and switching time) indispensable for sit-to-stand movements. In order to quantitatively evaluate human sit-to-stand(More)