Validity of physical activity monitors for assessing lower intensity activity in adults
Validity of physical activity monitors for assessing lower intensity activity in adults
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DOI：
10.1186/s12966-014-0119-7
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发表时间：
2014-09-28
影响因子：
8.7
通讯作者：
Welk, Gregory J.
中科院分区：
文献类型：
--
作者：
Calabro, M. Andres;Lee, Jung-Min;Welk, Gregory J.
背景：加速度计可以提供中到剧烈体力活动（MVPA）的准确估计。然而，这些仪器的局限性之一是无法在可接受的误差范围内捕获光活动。本研究的目的是确定不同的活动监测器估计能量消耗（EE）的光强度，semi-structured activities.Methods的有效性：40名健康参与者戴着SenseWear Pro 3臂章（SWA，V.6.1），SenseWear迷你，Actiheart，ActiGraph，和ActivPAL监视器，同时被监测与便携式间接热量计（IC）。参与者从事各种低强度的活动，但没有正式的脚本或协议，在这些periods.Results：迷你和SWA高估总EE平均为1.0%和4.0%，分别，而AH，GT 3X，和AP低估总EE平均为7.8%，25.5%，和22.2%，分别。模式识别监测器在半结构化期间的EE估计值无显著差异（Mini、SWA和AH分别为p = 0.66、p = 0.27和p = 0.21）。结论：与其他活动监测器相比，SenseWear Mini在轻至中等强度半结构化活动期间提供了更准确的EE估计值。当有兴趣跟踪群体中的低强度活动时，应考虑使用该监测器。
Background: Accelerometers can provide accurate estimates of moderate-to-vigorous physical activity (MVPA). However, one of the limitations of these instruments is the inability to capture light activity within an acceptable range of error. The purpose of the present study was to determine the validity of different activity monitors for estimating energy expenditure (EE) of light intensity, semi-structured activities.Methods: Forty healthy participants wore a SenseWear Pro3 Armband (SWA, v.6.1), the SenseWear Mini, the Actiheart, ActiGraph, and ActivPAL monitors, while being monitored with a portable indirect calorimetry (IC). Participants engaged in a variety of low intensity activities but no formalized scripts or protocols were used during these periods.Results: The Mini and SWA overestimated total EE on average by 1.0% and 4.0%, respectively, while the AH, the GT3X, and the AP underestimated total EE on average by 7.8%, 25.5%, and 22.2%, respectively. The pattern-recognition monitors yielded non-significant differences in EE estimates during the semi-structured period (p = 0.66, p = 0.27, and p = 0.21 for the Mini, SWA, and AH, respectively).Conclusions: The SenseWear Mini provided more accurate estimates of EE during light to moderate intensity semi-structured activities compared to other activity monitors. This monitor should be considered when there is interest in tracking low intensity activities in groups of individuals.