在学校环境中使用新技术增加身体活动：来自低收入城市社区的学龄儿童的试点研究。
Using Novel Technology within a School-Based Setting to Increase Physical Activity: A Pilot Study in School-Age Children from a Low-Income, Urban Community.
机构信息
The Miriam Hospital, Brown University Warren Alpert Medical School, 196 Richmond St., Providence, RI 02903, USA.
Butler Hospital, Brown University Warren Alpert Medical School, 345 Blackstone Blvd., Providence, RI 02906, USA.
出版信息
Biomed Res Int. 2017;2017:4271483. doi: 10.1155/2017/4271483. Epub 2017 Dec 3.
BACKGROUND
Less than half of American children meet national physical activity (PA) recommendations. This study tested the feasibility, acceptability, and preliminary effectiveness of using wearable PA monitors to increase PA in school-age children.
METHODS
In of this study, conducted in 2014, 32 fifth-grade students enrolled in a low-resource middle school were given a waist-worn Fitbit Zip monitor for 4 weeks to test its feasibility (adherence) and acceptability. Adherence, wear time of ≥8 hours per day, was examined. Feedback was solicited from parents through structured interviews. In , conducted in 2015, 42 sixth-grade students were assigned, by classroom, to one of three conditions (Fitbit + goal and incentive-based intervention, Fitbit only, or control) to test the feasibility of the wrist-worn Fitbit Charge and its preliminary effectiveness in increasing PA over 6 weeks.
RESULTS
In , average adherence was 64.1%. In , it was 73.4% and 80.2% for participants in the Fitbit + intervention and Fitbit only groups, respectively ( = .07). After controlling for baseline values, weight status, and sex, there were no significant group differences in changes in MVPA or steps from baseline to follow-up.
CONCLUSIONS
While moderately acceptable, wearable PA monitors did not increase PA levels in this sample. They may be more effective within a coordinated school-based physical activity program.
背景
不足一半的美国儿童符合国家体力活动（PA）建议。本研究旨在测试可穿戴 PA 监测器在增加学龄儿童 PA 中的可行性、可接受性和初步效果。
方法
在 2014 年进行的这项研究的 中，32 名五年级学生参加了一所资源匮乏的中学，他们佩戴了一个腰部佩戴的 Fitbit Zip 监测器 4 周，以测试其可行性（依从性）和可接受性。依从性是指每天佩戴≥8 小时。通过结构化访谈从家长那里征求反馈意见。在 2015 年进行的 中，将 42 名六年级学生按班级分配到三种条件之一（Fitbit +目标和激励干预、Fitbit 仅、或对照组），以测试腕戴 Fitbit Charge 的可行性及其在 6 周内增加 PA 的初步效果。
结果
在 中，平均依从率为 64.1%。在 中，佩戴 Fitbit +干预组和 Fitbit 仅组的参与者的依从率分别为 73.4%和 80.2%（= 0.07）。在控制基线值、体重状况和性别后，从基线到随访，MVPA 或步数的变化在组间无显著差异。
结论
可穿戴 PA 监测器在本研究中虽然具有中等可接受性，但并未提高 PA 水平。它们可能在协调一致的学校基础 PA 计划中更有效。
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