Task: Answer Verification
Input (English): Question: Does mobile and Wearable Device feature that Matter in Promoting Physical Activity?
Answer: Level of engagement with the Fitbit One, particularly the mobile app, was associated with increased steps. Mobile apps can instantly display summaries of PA performance and could optimize self-regulation to activate change. More research is needed to determine whether such modalities might be cost-effective in future intervention research and practice.
Output (English): yes