一项针对成年人的基于活动追踪器和互联网的适应性步行计划的有效性：一项随机对照试验。
Effectiveness of an Activity Tracker- and Internet-Based Adaptive Walking Program for Adults: A Randomized Controlled Trial.
作者信息
Poirier Josée, Bennett Wendy L, Jerome Gerald J, Shah Nina G, Lazo Mariana, Yeh Hsin-Chieh, Clark Jeanne M, Cobb Nathan K
机构信息
MeYou Health LLC, Boston, MA, United States.
出版信息
J Med Internet Res. 2016 Feb 9;18(2):e34. doi: 10.2196/jmir.5295.
BACKGROUND
The benefits of physical activity are well documented, but scalable programs to promote activity are needed. Interventions that assign tailored and dynamically adjusting goals could effect significant increases in physical activity but have not yet been implemented at scale.
OBJECTIVE
Our aim was to examine the effectiveness of an open access, Internet-based walking program that assigns daily step goals tailored to each participant.
METHODS
A two-arm, pragmatic randomized controlled trial compared the intervention to no treatment. Participants were recruited from a workplace setting and randomized to a no-treatment control (n=133) or to treatment (n=132). Treatment participants received a free wireless activity tracker and enrolled in the walking program, Walkadoo. Assessments were fully automated: activity tracker recorded primary outcomes (steps) without intervention by the participant or investigators. The two arms were compared on change in steps per day from baseline to follow-up (after 6 weeks of treatment) using a two-tailed independent samples t test.
RESULTS
Participants (N=265) were 66.0% (175/265) female with an average age of 39.9 years. Over half of the participants (142/265, 53.6%) were sedentary (<5000 steps/day) and 44.9% (119/265) were low to somewhat active (5000-9999 steps/day). The intervention group significantly increased their steps by 970 steps/day over control (P<.001), with treatment effects observed in sedentary (P=.04) and low-to-somewhat active (P=.004) participants alike.
CONCLUSIONS
The program is effective in increasing daily steps. Participants benefited from the program regardless of their initial activity level. A tailored, adaptive approach using wireless activity trackers is realistically implementable and scalable.
TRIAL REGISTRATION
Clinicaltrials.gov NCT02229409, https://clinicaltrials.gov/ct2/show/NCT02229409 (Archived by WebCite at http://www.webcitation.org/6eiWCvBYe).
背景
体育活动的益处已有充分记录，但需要可扩展的项目来促进体育活动。设定量身定制且动态调整目标的干预措施可能会显著增加体育活动量，但尚未大规模实施。
目的
我们的目的是检验一个开放获取的、基于互联网的步行项目的有效性，该项目为每位参与者设定每日步数目标。
方法
一项双臂、实用的随机对照试验将干预组与未治疗组进行比较。参与者从工作场所招募，随机分为未治疗对照组（n = 133）或治疗组（n = 132）。治疗组参与者获得一个免费的无线活动追踪器，并参加步行项目Walkadoo。评估完全自动化：活动追踪器记录主要结果（步数），无需参与者或研究人员干预。使用双尾独立样本t检验比较两组从基线到随访（治疗6周后）每日步数的变化。
结果
参与者（N = 265）中66.0%（175 / 265）为女性，平均年龄39.9岁。超过一半的参与者（142 / 265，53.6%）久坐不动（每天步数<5000步），44.9%（119 / 265）活动量低至中等（每天步数5000 - 9999步）。干预组比对照组每天显著多走970步（P <.001），久坐不动的参与者（P =.04）和活动量低至中等的参与者（P =.004）都观察到了治疗效果。
结论
该项目在增加每日步数方面有效。无论参与者的初始活动水平如何都能从该项目中受益。使用无线活动追踪器的量身定制、适应性方法切实可行且可扩展。
试验注册
Clinicaltrials.gov NCT02229409，https://clinicaltrials.gov/ct2/show/NCT02229409（由WebCite存档于http://www.webcitation.org/6eiWCvBYe）
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