LIVE SMART: Smartphone Intervention for Weight Control

LIVE SMART：智能手机干预体重控制

• 批准号: 8475475
• 负责人: John Graham Thomas
• 金额: $ 53.52万
• 依托单位: MIRIAM HOSPITAL
• 依托单位国家: 美国
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-07-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8475475
• 关键词: Address; Adherence; Adopted; Adult; African American; Behavior; Behavior Therapy; Behavioral; Body Weight; Body Weight decreased; Communities; Control Groups; Cost Effectiveness Analysis; Diabetes prevention; Diet; Diet Monitoring; Eating; Education; Environment; Feedback; Gold; Health; Hispanics; Human; Internet; Intervention; Learning; Mediation; Methods; Modality; Monitor; Obesity; Overweight; Paper; Participant; Penetration; Persons; Physical activity; Preparation; Protocols documentation; Psychological Factors; Randomized; Research; Research Personnel; Research Project Grants; Shapes; Societies; Technology; Testing; Time; Weight; Weight maintenance regimen; base; behavioral health; community organizations; cost; diabetes prevention program; diaries; efficacy testing; improved; intervention effect; meetings; novel; primary outcome; programs; skills training; trend

DESCRIPTION (provided by applicant): The efficacy of behavioral weight loss treatment (BWL) has been demonstrated in large trials such as the Diabetes Prevention Program and LookAHEAD. However, the modality used for BWL delivery (frequent group treatment sessions over several months) has proven impractical outside the research setting. Thus, alternative methods of BWL delivery are need. Initial attempts to deliver BWL via the Internet and community organizations show promise and much has been learned about adapting BWL for delivery through non- traditional channels. However, the weight losses in these studies are often suboptimal due to poor behavioral adherence. We are therefore faced with the challenge of finding new methods of delivering empirically validated BWL that (1) are as efficacious as gold standard BWL, (2) facilitate behavioral adherence, and (3) show promise for dissemination if demonstrated efficacious. Our mobile health (mHealth) approach to delivering BWL via widely adopted smartphone technology shows promise for meeting this challenge. Smartphones are an ideal medium for delivering BWL because adherence may be improved by: (a) intervening on behaviors in real-time in the natural environment, (b) simplifying and personalizing self-monitoring, a vital weight loss strategy, (c) providing immediate personalized feedback to shape eating and physical activity behaviors, and (d) providing tailored education and skills training in frequent brief "bursts." Furthermore, 44 percent of African Americans and Hispanics own a smartphone (30% of Whites) with >50% penetration expected this year. Given these benefits, there is a clear need to examine the efficacy of a smartphone-based BWL within a large-scale trial, and to identify strengths and weaknesses of this approach. We propose to randomly assign 270 overweight/obese adults to 18 months of (a) gold standard Group- BWL, (b) mHealth-BWL, or (c) Control. Participants in Group-BWL will attend group treatment sessions focused on diet, physical activity, and behavior modification. Groups will occur weekly, biweekly, and monthly during months 1-6, 7-12, and 13-18, respectively. Self-monitoring will be conducted via paper diaries with human feedback. Participants in mHealth-BWL will receive the same intervention components delivered via smartphone. Frequent, brief, videos will be used to deliver weight loss lessons. Self-monitoring will be conducted via "apps" with automatic and human feedback. An initial session and monthly weigh-ins will be used to facilitate adherence. The Control group will receive the same initial session and monthly weigh-ins, and human feedback on paper diaries to control for contact in mHealth-BWL. Assessments will be conducted at baseline, 3, 6, 12, and 18 months, with weight loss as the primary outcome. The proposed project addresses the significant problem of obesity by exploring the benefits of popular smartphone technology for delivering empirically validated behavioral strategies. If efficacious, an mHealth approach could be used to deliver BWL for relatively low cost using widely adopted smartphone technology.

描述（由申请人提供）：行为减肥治疗（BWL）的有效性已在糖尿病预防计划和LookAHEAD等大型试验中得到证实。然而，在研究环境之外，用于BWL交付的模式（几个月的频繁小组治疗）已被证明是不切实际的。因此，需要其他的BWL传送方法。通过互联网和社区组织提供BWL的初步尝试显示出希望，并且已经从调整BWL以通过非传统渠道提供方面学到了很多东西。然而，在这些研究中，由于不良的行为坚持，体重减轻往往不是最理想的。因此，我们面临的挑战是寻找新的方法来提供经经验验证的BWL，这些方法要(1)与金标准BWL一样有效，(2)促进行为依从性，(3)如果证明有效，就有希望传播。我们的移动医疗（mHealth）方法通过广泛采用的智能手机技术提供身体健康，有望应对这一挑战。智能手机是提供BWL的理想媒介，因为依从性可以通过以下方式得到改善：(a)在自然环境中实时干预行为，(b)简化和个性化自我监控，一种重要的减肥策略，(c)提供即时个性化反馈，以塑造饮食和体育活动行为，以及(d)提供量身定制的教育和技能培训