Heart Steps: Adaptive mHealth intervention for physical-activity maintenance

Heart Steps：用于维持身体活动的适应性移动健康干预

• 批准号: 9246565
• 负责人: Predrag Klasnja
• 金额: $ 24.92万
• 依托单位: KAISER FOUNDATION HEALTH PLAN OF WASHINGTON
• 依托单位国家: 美国
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-12-01 至 2019-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9246565
• 关键词: Adopted; Affect; Algorithms; Behavior; Behavior Therapy; Behavioral; Behavioral Sciences; Car Phone; Cardiac; Cardiac rehabilitation; Characteristics; Collaborations; Computational algorithm; Coronary Arteriosclerosis; Data; Development; Diet; Discipline; Equilibrium; Evaluation; Family; Goals; Grant; Habits; Health; Health Sciences; Heart; Heart Diseases; In Situ; Individual; Informal Social Control; Internet; Intervention; Learning; Life; Life Style; Maintenance; Modeling; Participant; Patients; Pattern; Phase; Physical activity; Pilot Projects; Prevention program; Process; Randomized; Recruitment Activity; Research; Research Design; Research Personnel; Risk; Risk Factors; Secondary Prevention; Smoking; Stress; Suggestion; Symptoms; System; Technology; Testing; Time; Trans Fats; Work; aged; arm; base; behavior change; computer human interaction; computer science; contextual factors; design; efficacy testing; experience; field study; follow-up; good diet; heart disease risk; innovation; insight; mHealth; news; novel; patient oriented; personalized intervention; physical inactivity; programs; public health relevance; response; success; therapy development; time use; tool; usability; user centered design

DESCRIPTION (provided by applicant): Many of the risk factors for heart disease are behavioral, such as physical inactivity, smoking, and diets high in saturated and trans-fats. Cardiac rehabilitation and other secondary prevention programs are effective at helping cardiac patients make the initial lifestyle changes needed to reduce their risks, but patients often fail t maintain those changes after the program ends. In this grant, the investigators propose to develop a novel mHealth application for supporting maintenance of physical activity after cardiac rehabilitation. By taking advantage of the frequent interactions that individuals have with their mobile phones throughout the day, the investigators will design and evaluate an adaptive, personalized application that (1) keeps patients reminded of their health goals, increasing the likelihood that they will notice opportunities to engage in physical activity; (2) provides actionable ideas for how patients can be active right now, given their current context; and (3) helps patients plan and reflect on their physical activity to enable creation of robust and sustainable physical-activity habits. In addition, the application will adapt its functioning for ech patient over time in order to minimize user burden while optimizing its ability to encourage physical activity and maintain engagement with the intervention. A user-centered design process will be used to investigate design requirements of mHealth technologies for long-term use, and the system will be evaluated in a year-long study with 60 patients with coronary artery disease who completed phase II cardiac rehabilitation. Study data will be analyzed to understand how the use of different components affect, over time, patients' physical activity levels, perceived burden, and engagement with the system. The project's innovations lie in grounding the proposed intervention in dual-process models of self-regulation, developing new algorithms to enable adaptation and personalization of how the application works over time, and using a micro-randomization study design to enable causal accounts of how the application use affects patients' physical activity, user burden, and engagement over the course of a year. The success of the project will provide cardiac patients with continuously available support for staying physically active in the midst of daily life, and deep understanding of technical and design requirements for behavior-change mHealth technologies for long-term use.

描述（由申请人提供）：许多心脏病的危险因素是行为性的，如缺乏运动、吸烟、高饱和脂肪和反式脂肪的饮食。心脏康复和其他二级预防项目在帮助心脏病患者改变最初的生活方式以降低风险方面是有效的，但在项目结束后，患者往往无法维持这些改变。在这项拨款中，研究人员建议开发一种新的移动健康应用程序，以支持心脏康复后身体活动的维持。通过利用个体之间频繁的互动