Abstract
Moving freely is one of the most important and fundamental activities in leading everyday life. So, when walking becomes troublesome by aging, a certain technological solution must be needed. So, we developed new personal mobility device which elderly person rides on and move by pedaling similar to bicycle. The new personal mobility device has four wheels and is equipped with electric power assist system. Our conviction that the new personal mobility we developed is useful for persons of advanced age was confirmed on the basis of utility evaluation and measurement of load in operating the new personal mobility.
