减少肥胖老年人久坐时间：一项随机对照试验方案
Reducing Sedentary Time for Obese Older Adults: Protocol for a Randomized Controlled Trial.
作者信息
Rosenberg Dori E, Lee Amy K, Anderson Melissa, Renz Anne, Matson Theresa E, Kerr Jacqueline, Arterburn David, McClure Jennifer B
机构信息
Kaiser Permanente Washington Health Research Institute, Seattle, WA, United States.
University of California San Diego, San Diego, CA, United States.
出版信息
JMIR Res Protoc. 2018 Feb 12;7(2):e23. doi: 10.2196/resprot.8883.
BACKGROUND
Older adults have high rates of obesity and are prone to chronic health conditions. These conditions are in part due to high rates of sedentary time (ST). As such, reducing ST could be an innovative strategy for improving health outcomes among obese older adults. To test this theory, we developed a novel, technology-enhanced intervention to reduce sitting time (I-STAND) and pilot tested it to assess the feasibility, acceptability, and preliminary effects of the intervention on ST and biometric outcomes.
OBJECTIVE
The current paper aims to describe the rationale, design, and methods of the I-STAND sitting reduction pilot trial.
METHODS
Older adults with obesity (n=60) were recruited from a large health care system and randomized to receive I-STAND or a healthy living intervention. I-STAND combined personal coaching with a technology-enhanced intervention (Jawbone UP band) to cue breaks from sitting. Participants completed self-report and biometric assessments at baseline and 3 months. Additional qualitative results were collected from a subset of I-STAND participants (n=22) to further inform the feasibility and acceptability of the interventions. The primary outcome was total hours of daily sitting time measured by the activPAL device. Secondary outcomes included sit-to-stand transitions, bouts of sitting longer than 30 minutes, physical function, blood pressure, fasting glucose, cholesterol, and depressive symptoms.
RESULTS
Study enrollment has ended and data processing is underway.
CONCLUSIONS
Data from randomized trials on sitting reduction are needed to inform novel approaches to health promotion among older adults with obesity. Our trial will help fill this gap. The methods used in our study can guide future research on using technology-based devices to assess or prompt sedentary behavior reduction, or those interested in behavioral interventions targeting obese older adults with novel approaches.
TRIAL REGISTRATION
ClinicalTrials.gov: NCT02692560; https://clinicaltrials.gov/ct2/show/NCT02692560 (Archived by WebCite at http://www.webcitation.org/6wppLTWAl).
背景
老年人肥胖率较高，且易患慢性健康问题。这些状况部分归因于久坐时间（ST）过长。因此，减少久坐时间可能是改善肥胖老年人健康状况的一种创新策略。为验证这一理论，我们开发了一种新型的、技术强化的减少久坐时间干预措施（I-STAND），并进行了预试验以评估该干预措施在减少久坐时间及生物特征指标方面的可行性、可接受性和初步效果。
目的
本文旨在描述I-STAND减少久坐时间预试验的基本原理、设计和方法。
方法
从一个大型医疗保健系统招募了60名肥胖老年人，并将他们随机分为接受I-STAND干预组或健康生活方式干预组。I-STAND将个人指导与技术强化干预（Jawbone UP手环）相结合，以提示中断久坐。参与者在基线和3个月时完成自我报告和生物特征评估。从I-STAND干预组的一个子集（n = 22）收集了额外的定性结果，以进一步了解干预措施的可行性和可接受性。主要结局指标是通过activPAL设备测量的每日久坐总时长。次要结局指标包括从坐到站的转换次数、久坐超过30分钟的时长、身体功能、血压、空腹血糖、胆固醇和抑郁症状。
结果
研究招募工作已结束，数据处理正在进行中。
结论
需要来自减少久坐时间随机试验的数据，为肥胖老年人的新型健康促进方法提供信息。我们的试验将有助于填补这一空白。我们研究中使用的方法可以指导未来关于使用基于技术的设备评估或促使减少久坐行为的研究，或为那些对采用新方法针对肥胖老年人进行行为干预感兴趣的研究提供指导。
试验注册
ClinicalTrials.gov：NCT02692560；https://clinicaltrials.gov/ct2/show/NCT02692560（由WebCite存档于http://www.webcitation.org/6wppLTWAl）
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