The Development and Usability Evaluation of an Interactive Health Technology Solution, for Encouragement of Physical Activity in Inactive Adults Based on the User Perspective

Abstract

Physical inactivity is increasing worldwide. Technology shows good evidence for its good impact on health. Successful behavior change regarding physical activity requires user involvement and the integration of relevant behavior change techniques. The aim of this study was, based on the user perspective, to develop and later evaluate the usability of an interactive health technology solution that can encourage physically inactive adults to physical activity. A mixed methods design with a user-centered approach was used. The data collection included two workshops, technical development, and a usability evaluation (effectiveness, efficiency, satisfaction) involving 35 participants. From one workshop, four themes were identified: focus, platform, characteristics, and content. A schematic model of the first prototype was presented at the next workshop, and the feedback was positive. A behavior change application was developed (App&Move), with focus on encouraging functions. App&Move, which measures physical activity in minutes per day, has integrated behavior change techniques, is based on physical activity recommendations, relies on scientific evidence, and is strongly based on the user perspective. The usability evaluation of App&Move showed that effectiveness was acceptable, efficiency was (with one exception) high, and satisfaction was medium. The results from this study contribute to the development of a first model of a behavior change application that aims to encourage physically inactive adults to physical activity. In conclusion, the usability evaluation of App&Move showed promising usability, and App&Move seemed to encourage physical activity to some extent. Future research suggestions can be to further improve the usability, encouragement, and user demands.