Shakra: tracking and sharing daily activity levels with unaugmented mobile phones
Mobile Networks and Applications
A behavior model for persuasive design
Proceedings of the 4th International Conference on Persuasive Technology
Mobile system to motivate teenagers' physical activity
Proceedings of the 9th International Conference on Interaction Design and Children
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This paper provides an outline of the persuasive mobile application 'Krachtvoer' (In English: PowerFood) that encourages adolescents with moderate overweight to eat more fruit and fewer snacks. The key features of this solution are dynamic goal setting, personal reminders, progress monitoring, social interaction and competition with friends. Results of the evaluation indicate that the app enhances the user's attitude and self-efficacy towards eating fruit and healthy food. In addition, social influences encourage users to eat more fruit and less unhealthy snacks.