Kinematic analysis of driving posture of Single-Hand-Operation Wheelchair with seating angle set

Abstract

Measurements were made using a three-dimensional motion analysis device and a body pressure distribution measurement device to improve driving efficiency of a Single-Hand-Operation Wheelchair by setting the seat surface angle. The results showed that the angular change of the torso was larger on the other 5 seating surfaces than on the 0° planar surface, while the angular change of the arms tended to be smaller on the other 5 seating surfaces. In the seating pressure measurement, there was a significant difference in the wobble of the center of the pressure at the pitch down 10°. The results showed that the diagonal up-and-down direction and the pitch down 10°seating surface reduced the angular change of the arm joints, indicating that the robot may be effective for shoulder, elbow, and hand movements, which are prone to joint disorders.