Run’n’Play: promoting physical activity and intention control using an app-based game and fitness tracker

Abstract

A sedentary lifestyle is one of the main causes for obesity among youths. Crucial factors are a lack of motivation and intention control and should be addressed in intervention programs. This study aims to evaluate the efficacy of an app-based game combined with a fitness tracker in terms of participants’ physical activity, motivation for physical activity, intention control, and body-mass-index (BMI). Normal and overweighed youths aged 14 to 17 (N=60) will be randomized to (1) the experimental condition using a game-based smartphone-app and fitness tracker for step count versus (2) the control condition using a non-game-based smartphone-app and fitness tracker. In the experimental condition, feedback regarding the participants' activity will be provided by interlinking the participant's physical activity with the abilities of her/his avatar. Physical activity will be monitored by tracking step count for 4 weeks. Before and after the intervention, motivation for physical activity, intention control and BMI will be assessed. We suppose that participants in the experimental condition show a higher increase in their physical activity that is associated with a reduction in BMI when compared to the control group. By interlinking physical activity with the performance of the avatar, a raise in motivation towards physical activity and intention control is expected. The development of the app and game has been completed. Currently participants are recruited and will following be assessed. Results may help clarifying whether a target-group-specific game and app design based on concepts of health psychology may help increasing physical activity in normal and overweighed youths.