Randomized Trial of a Fitbit-Based Physical Activity Intervention for Women

摘要: Introduction Direct-to-consumer m Health devices are a potential asset to behavioral research but rarely tested as intervention tools. This trial examined the accelerometer-based Fitbit tracker and website low-touch physical activity intervention. The purpose of this study is evaluate, within an RCT, feasibility preliminary efficacy integrating into for postmenopausal women. Methods Fifty-one inactive, women with BMI ≥25.0 were randomized 16-week web-based self-monitoring ( n =25) or comparison group =26). Web-Based Tracking Group received Fitbit, instructional session, follow-up call at 4 weeks. standard pedometer. All asked perform 150 minutes/week moderate vigorous (MVPA). Physical outcomes measured by ActiGraph GT3X+ accelerometer. Results Data collected analyzed in 2013–2014. Participants aged 60 (SD=7) years 29.2 (3.5) kg/m 2 . Relative baseline, increased MVPA 62 (108) p =0.008); steps 789 (1,979) =0.01), compared non-significant increases Pedometer (between-group =0.11, 0.28, 0.30, respectively). wore on 95% days; 96% reported liking 100% liked tracker. Conclusions was well accepted sample associated 16 Leveraging direct-to-consumer technologies aligned behavior change theories can strengthen interventions.