Applying Mobile-Persuasive Technologies to Increase Physical Activity in Women

应用移动说服技术来增加女性的身体活动

• 批准号: 7946938
• 负责人: YOSHIMI FUKUOKA
• 金额: $ 72.87万
• 依托单位: UNIVERSITY OF CALIFORNIA, SAN FRANCISCO
• 依托单位国家: 美国
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-14 至 2015-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7946938
• 关键词: Adherence; Adult; Aerobic; Age; American Heart Association; Beds; Body mass index; Car Phone; Cellular Phone; Clip; Communication; Control Groups; Data; Diabetes Mellitus; Dose; Educational process of instructing; Effectiveness; Enrollment; Equilibrium; Evaluation; Feedback; Goals; Health Benefit; Heart Diseases; Hypertension; Internet; Intervention; Life; Literature; Maintenance; Malignant Neoplasms; Measures; Mediating; Methods; Monitor; Outcome; Overweight; Participant; Patient Self-Report; Physical activity; Pilot Projects; Plague; Population; Premature Mortality; Randomized; Randomized Controlled Trials; Risk; Role; Self Efficacy; Social support; Stroke; Technology; Time; United States; Woman; arm; base; comparative efficacy; design; diaries; expectation; experience; follow-up; group intervention; health related quality of life; heart disease risk; improved; innovation; insight; outreach; premature; primary outcome; programs; psychologic; public health relevance; rapid growth; response; secondary outcome; sedentary; skills

DESCRIPTION (provided by applicant): Fewer than half of adult women in the US engage in recommended levels of physical activity. As a consequence, they are at increased risk of heart disease, stroke, hypertension, diabetes, certain cancers, and premature mortality. Given the rapid growth of mobile phone technology and the increasing number of users, we developed an interactive mobile phone-based physical activity intervention for sedentary women (based on the Choose to Move program developed by the American Heart Association for sedentary women). We assessed the feasibility and acceptability of this intervention in a 3-week pre-post study in which we had rapid enrollment, no attrition, high compliance (95% compliance with a pedometer and 85% compliance with a cell phone diary), and a significantly increased step count. We now propose to conduct a randomized, controlled trial to assess the efficacy of the mobile phone-based physical activity intervention on increasing physical activity over a 3-month period. 192 sedentary women will be randomized in a 2-to-1 ratio to a 3-month mobile phone-based physical activity intervention group or to a control group. Participants in both groups will receive a pedometer and a mobile phone and will asked to wear a pedometer and to send their total number of steps through a cell phone diary before going to bed each night. Only participants in the intervention group will receive the Choose to Move program through their cell phones via daily prompts, weekly video clips, and customized feedback and self-monitoring. The primary outcome will be total steps per day (as measured by the pedometer). Secondary outcomes will be the aerobic steps per day (also measured by the pedometer) and self-reported 7-day physical activity recall. To provide insight into how best to maximize the potential for sustained physical activity after completion of the 3-month program, women in the intervention group who complete the physical activity program will be further randomized into a 6-month maintenance intervention-PLUS program (pedometer plus cell phone diary) or to a 6-month maintenance intervention-REGULAR program (pedometer only). Unlike a conventional maintenance follow-up in which all subjects continue in their respective randomization arms, re-randomizing subjects into either a maintenance intervention-REGULAR group or a maintenance intervention-PLUS group will allow us to examine the "dose-response" of the maintenance methods if the intervention is effective. We will also explore the role of potential mediating factors (physical activity, self-efficacy, social support, outcome expectation, and decisional balance) and moderating factors (BMI and age) on changes in physical activity. If proven effective, a major advantage of a mobile phone-based intervention is that it could potentially be administered to a large number of women. Public health relevance: 86% of US adults use mobile phones. Evaluating mobile persuasive technologies is critical because it could be easily administered to large number of sedentary women. PUBLIC HEALTH RELEVANCE: Despite the health benefits of regular physical activity, more than half of adult women in the United States do not engage in recommended levels of physical activity. To reach a larger population of sedentary women, we will apply cell phone technologies as a means to deliver a physical activity program, and to motivate participants, so that their physical activity goals can be achieved.

描述(由申请者提供)：在美国，只有不到一半的成年女性从事推荐的体力活动。因此，他们患心脏病、中风、高血压、糖尿病、某些癌症和过早死亡的风险增加。鉴于手机技术的快速发展和用户数量的不断增加，我们为久坐的女性开发了基于手机的交互式体力活动干预(基于美国心脏协会为久坐的女性开发的Choose to Move计划)。我们在一项为期3周的事前研究中评估了这种干预的可行性和可接受性。在这项研究中，我们的登记速度很快，没有自然减员，遵从性很高(95%遵守计步器，85%遵守手机日记)，步数显著增加。我们现在建议进行一项随机对照试验，以评估基于手机的体力活动干预在3个月期间增加体力活动的效果。192名久坐不动的女性将以2：1的比例随机分配到基于手机的3个月体力活动干预组或对照组。两组参与者都将收到一个计步器和一部手机，并被要求佩戴计步器，并在每天晚上睡觉前通过手机日记发送他们的总步数。只有干预组的参与者将通过他们的手机收到每日提示、每周视频剪辑以及定制反馈和自我监控的Choose to Move计划。主要结果将是每天的总步数(由计步器测量)。次要结果将是每天的有氧步数(也用计步器测量)和自我报告的7天体力活动回忆。为了深入了解如何在完成3个月的计划后最大限度地发挥持续体力活动的潜力，干预组中完成体力活动计划的女性将被进一步随机分为6个月维护干预加计划(计步器+手机日记)或6个月维护干预常规计划(仅限计步器)。与所有受试者在各自的随机化手臂上继续进行传统的维护随访不同，将受试者重新随机分成维护干预-常规组或维护干预+组-将允许我们检查维护方法的“剂量-反应”，如果干预有效的话。我们还将探索潜在的中介因素(身体活动、自我效能、社会支持、结果预期和决策平衡)和调节因素(BMI和年龄)对身体活动变化的作用。如果被证明有效，基于手机的干预的一个主要优势是，它可能会被应用到大量女性身上。与公共健康相关：86%的美国成年人使用手机。评估移动劝说技术至关重要，因为它可以很容易地应用于大量久坐不动的女性。 与公共健康相关：尽管定期体育锻炼对健康有好处，但在美国，超过一半的成年女性并不从事推荐水平的体育锻炼。为了接触到更多久坐不动的女性，我们将应用手机技术作为一种手段来提供体育活动计划，并激励参与者，从而实现他们的体育活动目标。