The validity of consumer-level, activity monitors in healthy adults worn in free-living conditions: a cross-sectional study.
The validity of consumer-level, activity monitors in healthy adults worn in free-living conditions: a cross-sectional study.
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DOI：
10.1186/s12966-015-0201-9
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发表时间：
2015-03-27
期刊：
影响因子：
--
通讯作者：
Maher C
中科院分区：
文献类型：
--
作者：
Ferguson T;Rowlands AV;Olds T;Maher C
技术进步催生了针对消费市场的基于加速度计的可穿戴活动监测器行业的蓬勃发展。本研究的目的是确定一系列基于加速度计的消费者级活动监视器的收敛有效性。 21 名健康成年人佩戴 7 个消费者级活动监测器（Fitbit One、Fitbit Zip、Jawbone UP、Misfit Shine、Nike Fuelband、Striiv Smart Pedometer 和 Withings Pulse）和两个研究级加速计/多传感器设备（BodyMedia SenseWear 和 ActiGraph GT3X+）48 小时。在数据收集期间，参与者在自由生活的条件下过着日常生活。使用 Bland-Altman 分析、中值绝对差和 Pearson 相关性对消费者级活动监测器相对于研究设备在步数、中度至剧烈体力活动 (MVPA)、睡眠和每日总能量消耗 (TDEE) 方面的有效性进行了量化。所有消费者级活动监测器在步数和睡眠时间方面与研究级设备均具有很强的相关性 (r > 0.8)，但与 TDEE (r = 0.74-0.81) 和 MVPA (r = 0.52-0.91) 的相关性仅为中等到强。睡眠和步数的中位绝对差异一般较小（大多数设备<研究设备平均值的 10％），TDEE 中等（<研究设备平均值的 30％），MVPA 较大（26-298％）。在所检查的结构中，Fitbit One、Fitbit Zip 和 Withings Pulse 的表现最为强劲。在自由生活条件下，消费者级活动监测器对步数和睡眠持续时间的测量显示出很强的有效性，对 TDEE 和 MVPA 的测量显示出中等的有效性。每种结构的有效性在不同设备之间差异很大，其中 Fitbit One、Fitbit Zip 和 Withings Pulse 表现最好。
Technological advances have seen a burgeoning industry for accelerometer-based wearable activity monitors targeted at the consumer market. The purpose of this study was to determine the convergent validity of a selection of consumer-level accelerometer-based activity monitors. 21 healthy adults wore seven consumer-level activity monitors (Fitbit One, Fitbit Zip, Jawbone UP, Misfit Shine, Nike Fuelband, Striiv Smart Pedometer and Withings Pulse) and two research-grade accelerometers/multi-sensor devices (BodyMedia SenseWear, and ActiGraph GT3X+) for 48-hours. Participants went about their daily life in free-living conditions during data collection. The validity of the consumer-level activity monitors relative to the research devices for step count, moderate to vigorous physical activity (MVPA), sleep and total daily energy expenditure (TDEE) was quantified using Bland-Altman analysis, median absolute difference and Pearson’s correlation. All consumer-level activity monitors correlated strongly (r > 0.8) with research-grade devices for step count and sleep time, but only moderately-to-strongly for TDEE (r = 0.74-0.81) and MVPA (r = 0.52-0.91). Median absolute differences were generally modest for sleep and steps (<10% of research device mean values for the majority of devices) moderate for TDEE (<30% of research device mean values), and large for MVPA (26-298%). Across the constructs examined, the Fitbit One, Fitbit Zip and Withings Pulse performed most strongly. In free-living conditions, the consumer-level activity monitors showed strong validity for the measurement of steps and sleep duration, and moderate valid for measurement of TDEE and MVPA. Validity for each construct ranged widely between devices, with the Fitbit One, Fitbit Zip and Withings Pulse being the strongest performers.
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影响因子：
2.5
作者：
Farooqi, Nighat;Slinde, Frode;Haglin, Lena;Sandstrom, Thomas
通讯作者：
Sandstrom, Thomas
影响因子：
2.5
作者：
Montgomery-Downs, Hawley E.;Insana, Salvatore P.;Bond, Jonathan A.
通讯作者：
Bond, Jonathan A.
DOI：
10.1097/00005768-199805000-00021
发表时间：
1998-05-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Freedson, PS;Melanson, E;Sirard, J
通讯作者：
Sirard, J
影响因子：
3.2
作者：
Fulk, George D.;Combs, Stephanie A.;Reisman, Darcy S.
通讯作者：
Reisman, Darcy S.
DOI：
10.1249/mss.0b013e3181b3af49
发表时间：
2010-02-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
John, Dinesh;Tyo, Brian;Bassett, David R.
通讯作者：
Bassett, David R.