ABSTRACT

Objective : This study was conducted to develop a more comfortable and convenient user interface that can be used in a front-entry sitting bathroom for wheelchair users, as determined through a usability test. It aims to promote the convenience and safety of wheelchair users and contribute to a revitalization of diffusion through associated research and policies. Methods : Forty male and female college students 20 to 24 years in age, who were divided into four groups according to their body size, were selected to monitor and measure the appropriate dimensions while using a front-entry sitting bathroom, including various components, in a convenient and safe manner. The principle of design for extreme individuals for the measured dimensions was applied to develop the final prototypes, and thereafter conduct usability tests on the subjects. Results : The front-entry sitting bathroom was developed by appling a user-centered approach to facilitate the use of wheelchair users. The results of the usability test were considerably positive in terms of convenience, appropriateness, recommendability, and applicability of the developed bathroom. Conclusion : The availability of a front-entry sitting bathroom was shown to be able to increase the convenience and safety of wheelchair users, as well as reduce the existing bathroom space. It can also improve their self-esteem by allowing wheelchair users to solve their own hygienic problems and thereby facilitate social participation. Efforts are required to adopt and distribute the developed bathroom, and it is recommended to push forward with this project on a national policy level.