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首页> 外文学位 >A Wearable Sensor (Fitbit One) and Text-Messaging to Promote Physical Activity and Participants' Level of Engagement (A Randomized Controlled Feasibility Trial).
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A Wearable Sensor (Fitbit One) and Text-Messaging to Promote Physical Activity and Participants' Level of Engagement (A Randomized Controlled Feasibility Trial).

机译：可穿戴式传感器（Fitbit One）和短信，以促进体育活动和参与者的参与程度（随机对照可行性试验）。

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摘要

Background: Low-cost health interventions are needed to prevent disease at the population level. Advances in technology offer researchers opportunities to test new strategies and modalities. This dissertation examined the utility of a wearable device/sensor with website (Fitbit One) and SMS text messaging prompts to increase physical activity (PA) in overweight/obese adults. It also examined participants' level of engagement with intervention components and factors associated with engagement.;Methods: In a 6-week randomized controlled pilot trial, 67 participants were provided a Fitbit One for self-monitoring and half were randomized to receive daily text messaging PA prompts. Primary outcomes were objectively measured steps and minutes of PA by intensity level using Actigraph GT3X+ and Fitbit One. Self-reported baseline and follow-up surveys were analyzed to assess participants' attitudes and level of engagement with intervention components (Fitbit One and text messages), and whether self-efficacy and outcome expectations could predict level of engagement.;Secondary data were analyzed from the Women's Healthy Eating and Living (WHEL) Study to examine adherence to study protocols and dietary change by baseline depressive symptoms in women who were enrolled in a large dietary trial that focused on behavioral activation components.;Results: (1) Daily text messaging prompts were associated with short-term PA increases but only for 1 week, and Fitbit One (without text messages) was associated with an increase in MVPA at week 6. (2) Participants who used the Fitbit mobile app increased their steps at week 6. (3) Baseline depressive symptoms predicted lower adherence to study protocols, but only in control participants, and (among those furthest from recommended targets at baseline) less improvements in change in plasma carotenoid concentrations, fiber, and fat.;Conclusions: Participants' level of engagement with the study intervention was associated with health behavior change. Text messages as PA prompts were insufficient to keep participants engaged to maintain PA changes beyond 1 week. Fitbit One, particularly the Fitbit mobile app, which is both accessible and provides instant detailed feedback for self-monitoring, was helpful in increasing PA. Lastly, a dietary intervention with behavioral activation components increased level of engagement in both non-depressed and depressed women who made dietary improvements.
机译：背景：需要低成本的卫生干预措施以在人群一级预防疾病。技术的进步为研究人员提供了测试新策略和新模式的机会。本文研究了带有网站（Fitbit One）和SMS短信提示可穿戴设备/传感器在超重/肥胖成年人中增加身体活动（PA）的实用性。方法：在为期6周的随机对照试验中，为67位参与者提供了Fitbit One进行自我监测，一半的参与者随机接受了每日短信PA提示。主要结果是使用Actigraph GT3X +和Fitbit One通过强度水平客观地测量PA的步数和分钟数。分析自我报告的基线和随访调查，以评估参与者对干预成分（Fitbit One和短信）的态度和参与程度，以及自我效能和结果期望是否可以预测参与程度。;分析了辅助数据来自女性健康饮食和生活（WHEL）研究的研究，以基线抑郁症状为研究对象，研究女性对饮食习惯和饮食变化的依从性，这些女性参加了一项大型饮食试验，该试验关注行为激活成分;结果：（1）每日短信提示与短期PA升高有关，但仅持续1周，而Fitbit One（无短信）与MVPA升高在第6周有关。（2）使用Fitbit移动应用程序的参与者在第6周增加了步伐。（3）基线抑郁症状预示着对研究方案的依从性较低，但仅在对照受试者中，并且（在距基线推荐目标较远的人群中）血浆类胡萝卜素浓度，纤维和脂肪变化的改善。；结论：参与者对研究干预的参与程度与健康行为的变化有关。作为PA提示的短信不足以使参与者保持1周以上的PA变化。 Fitbit One，尤其是Fitbit移动应用程序，可以访问并提供即时详细的自我监控反馈，有助于提高PA。最后，通过行为激活成分进行饮食干预，可以使饮食改善的非抑郁和抑郁妇女的参与度增加。

著录项

  • 作者

    Wang, Julie.;

  • 作者单位

    University of California, San Diego.;

  • 授予单位 University of California, San Diego.;
  • 学科 Public health.;Behavioral psychology.
  • 学位 Ph.D.
  • 年度 2014
  • 页码 144 p.
  • 总页数 144
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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