Abstract
The purpose of this study is to establish a new effective process of developing assistive products. In this process, the psychological effects caused by using an assistive product are carefully examined before forming the concept of new assistive products. Here, we introduce the case study intended for the older persons located at the former stage to develop the products. To identify detrimental factors, a qualitative research approach was adopted in a study on 5 older persons who use wheelchair in daily living. The investigation revealed that older persons who use wheelchair have characteristic impression against mobility, between wheelchair and walking functions.
