Biomechanical and psychological evaluation of step ascending and descending

Abstract

For the estimation of the biomechanical and psychological factors in step ascending and descending, we measured trajectories of body markers, floor reaction force and sensory evaluation. We calculated 3-dimensional (sagittal, frontal and torsional) joint torques of lower extremes in the method of inverse dynamics. From the result of analysis, we show that not only the torsional motion has an important role in step ascending and descending, but also psychological factors is related with the biomechanical factors such as joint torque.