Comparison of wrist-worn and hip-worn activity monitors under free living conditions
Comparison of wrist-worn and hip-worn activity monitors under free living conditions
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DOI：
10.1080/03091902.2016.1271046
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发表时间：
2017-01-01
影响因子：
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通讯作者：
Sharpe, Lauren E.
中科院分区：
文献类型：
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作者：
Hargens, Trent A.;Deyarmin, Kayla N.;Sharpe, Lauren E.
用途：目前的建议是，每个人每周进行150分钟的中等强度或75分钟的剧烈强度体力活动（PA）。商业PA监视器在日常使用中越来越受欢迎。然而，这些设备的准确性还不清楚。我们试图在自由生活条件下检查两种商用设备（一种腕式设备和一种腰戴式设备）的准确性。方法：22名受试者在正常活动下连续7天佩戴两种商用设备和一个ActiGraph（AG）。结果：所有三种设备之间的每日平均步数差异显着。在中等至剧烈强度的体力活动（MPVA）中没有发现差异。每日能量消耗（EE）在AG和商业设备之间也有显着差异。Bland-Altman分析发现AG和商业设备之间关于步骤和EE的协议较差，但在MVPA.Conclusion良好的协议：结果表明，商业设备是不太准确的估计步骤和EE. These设备没有表现出良好的协议关于MVPA，这表明他们可能会提供有用的反馈个人寻求实现当前的PA MVPA指南。在步骤和EE估计方面需要改进。
Purpose: Current recommendations state that individuals engage in 150 min of moderate or 75 min of vigorous intensity physical activity (PA) each week. Commercial PA monitors are becoming popular for everyday use. The accuracy of these devices, however, is not well understood. We sought to examine the accuracy of two commercial devices, one wrist and one hipworn, under free-living conditions.Methods: Twenty-two subjects wore two commercially available devices and one ActiGraph (AG) for seven consecutive days under normal activity.Results: Mean steps per day between all three devices differed significantly. No differences were found in moderate-to-vigorous intensity physical activity (MPVA). Daily energy expenditure (EE) also differed significantly between the AG and the commercial devices. Bland-Altman analysis found poor agreement between the AG and the commercial devices with regards to steps and EE, but good agreement in MVPA.Conclusion: Results suggest that the commercial devices are less accurate in estimating steps and EE. These devices did show good agreement with regards to MVPA, suggesting that they may provide useful feedback for individuals seeking to achieve the current PA guidelines for MVPA. Improvements are needed with regards to steps and EE estimation.