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Mobile Phones App to Promote Daily Physical Activity: Theoretical Background and Design Process

Considering advances from research and technologies concerning physical activity and health, this chapter presents the C2S’s Project (Coaching Sport Sante). C2S is a French start-up aiming at designing a device for promoting Daily Physical Activity (DPA). Based on Self-Determination, Self-Esteem Self-Regulation theories, and on the Trans-theoretical Model of Behaviour Change, a mobile phone App was developed including pedometer technology. The app offer a five step-strategy aimed at taking in account a) initial or normal everyday steps counts, b) individual motivational factor, and c) personallyadapted feedbacks.