Hideki Sawai

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We hypothesized that weight perception (WP) due to inertia might be different from WP due to gravity for lifting an object with a power assist robot (PAR). Objects were lifted with a PAR independently under three different lifting schemes-unimanual, bimanual, and cooperative lift. Then, psychophysical relationships between actual and power-assisted weights(More)
— In this paper, we designed a 1DOF power assist system for lifting objects. Human's vertical lifting force, comprises of inertial force and gravitational force, was considered as the desired dynamics of the system. We hypothesized that human's perception of object weight due to inertial force might be different from the perceived weight due to(More)
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