Research is mixed on the effectiveness of mhealth interventions in changing and maintaining health behaviors. Does just providing Fitbits (without intervention) change and maintain any health behaviors? Does this lead to improved health outcomes (BMI, BP, lipids, etc)? Provide Fitbits to a random sample (not a self-selected sample that may be motivated to change behaviors). Longitudinal comparison of those with /without Fitbits on health behavior change and maintenance, and on health outcomes.
Idea No. 332