Validation and calibration of physical activity monitors in children
Validation and calibration of physical activity monitors in children
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DOI：
10.1038/oby.2002.24
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发表时间：
2002-03-01
期刊：
影响因子：
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通讯作者：
Butte, NF
中科院分区：
文献类型：
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作者：
Puyau, MR;Adolph, AL;Butte, NF
目的：本研究旨在验证基于加速度计的活动监测仪对儿童能量消耗（EE）的影响，将监测仪放置地点与现场测试监测仪进行比较，并建立久坐状态。轻度、中度和剧烈的阈值都很重要。研究方法与程序：计算机科学与应用活动图（CSA）和迷你斜向活动表（MM）监视器。对26名6至16岁儿童进行了验证和校准，通过室内呼吸量热仪测量6小时EE，通过微波检测器测量活动，通过遥测心率。在6小时内，孩子们进行了有组织的活动，包括静息代谢率（RMR）、任天堂、艺术和手工艺。有氧热身，泰伯，跑步机散步和跑步。和游戏。以EE - RMR计算的活动能量消耗（AEE）与计数进行回归，得出阈值计数。结果：MM-hip （r = 0.78 +/- 0.06）和MM-leg （r = 0.80 +/- 0.05）的EE或AEE与计数的平均相关性略高于CSA-hip （r = 0.66 +/- 0.08）和CSA-leg （r = 0.73 +/- 0.07）。CSA和MM在髋部（器械间r = 0.88）和下肢（器械间r = 0.89）的表现相似。CSA-hip的阈值计数为
Objective: This study was designed to validate accelerometer-based activity monitors against energy expenditure (EE) in children: to compare monitor placement sites to field-test the monitors: and to establish sedentary. light, moderate, and vigorous threshold counts.Research Methods and Procedures: Computer Science and Applications Actigraph (CSA) and Mini-Mitter Actiwatch (MM) monitors. on the hip or lower leg, were validated and calibrated against 6-hour EE measurements by room respiration calorimetry, activity by microwave detector, and heart rate by telemetry in 26 children, 6 to 16 years old. During the 6 hours, the children performed structured activities, including resting metabolic rate (RMR), Nintendo, arts and crafts. aerobic warm-up, Tae Bo, treadmill walking and running. and games. Activity energy expenditure (AEE) computed as EE - RMR was regressed against counts to derive threshold counts.Results: The mean correlations between EE or AEE and counts were slightly higher for MM-hip (r = 0.78 +/- 0.06) and MM-leg (r = 0.80 +/- 0.05) than CSA-hip (r = 0.66 +/- 0.08) and CSA-leg (r = 0.73 +/- 0.07). CSA and MM performed similarly on the hip (inter-instrument r = 0.88) and on the lower leg (inter-instrument r = 0.89). Threshold counts for the CSA-hip were