In this paper, we analyzed gait motions with a prototype of a walking assist device "Raku-walk", for evaluation of the device. The Raku-walk is a new three-wheeled walker which can be used in sitting position. Using 9-axis motion sensors, normal gait motions without the Raku-walk and gait motions with the Raku-walk were measured and analyzed. From the results, differences between normal gait motions and motions with the Raku-walk were observed.
