SMARTPHONE-BASED TRACKING AND TEXTING INTERVENTIONSFOR PROMOTION OF PHYSICAL ACTIVITYIN CARDIOVASCULAR PREVENTION

mHealth;physical activity;accelerometer;text messaging;Public Health Studies

Martin, Seth ShayCelentano, David D. ;

Johns Hopkins University

关键词: mHealth;    physical activity;    accelerometer;    text messaging;    Public Health Studies;   

Others  :  https://jscholarship.library.jhu.edu/bitstream/handle/1774.2/39246/MARTIN-THESIS-2015.pdf?sequence=1&isAllowed=y

瑞士|英语

来源: JOHNS HOPKINS DSpace Repository

【 摘 要 】

Introduction: The recent advent of smartphone-linked wearable accelerometers offers a novel opportunity to promote physical activity using mobile health (mHealth) technology.Methods: mActive was a 5-week, blinded, sequentially-randomized, parallel group, pilot trial that enrolled patients at an academic preventive cardiovascular center in Baltimore, Maryland from 1/17/14-5/20/14. Eligible patients were 18-69 year old smartphone users who reported low leisure-time activity by a standardized questionnaire. After establishing baseline activity during a 1-week blinded run-in, we randomized patients 2:1 to unblinded or blinded tracking in phase I (2 weeks), then randomized unblinded patients 1:1 to receive or not receive smart texts in phase II (2 weeks). Smart texts provided fully-automated, personalized, real-time coaching 3 times/day towards a daily goal of 10,000 steps. The primary outcome was daily step count.Results: Forty-eight patients (22 women, 26 men) enrolled with a mean (SD) age of 58 (8) years, body mass index of 31 (6), and baseline daily step count of 9670 (4350). With 100% uptake of the intervention, the phase I change in activity was non-significantly higher in unblinded patients versus blinded controls by 1024 daily steps (95% CI -580-2628, p=0.21). In phase II, smart text receiving patients increased their daily steps over those not receiving texts by 2534 (1318-3750, p<0.001) and over blinded controls by 3376 (1951-4801, p<0.001).Conclusion: In present-day adult smartphone users receiving preventive cardiovascular care in the United States, a technologically-integrated mHealth strategy combining digital tracking with fully-automated, personalized, real-time text message coaching resulted in a large increase in physical activity.