Validity of combining heart rate and uniaxial acceleration to measure free-living physical activity energy expenditure in young men
Validity of combining heart rate and uniaxial acceleration to measure free-living physical activity energy expenditure in young men
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DOI：
10.1152/japplphysiol.01413.2011
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发表时间：
2012-12-01
影响因子：
3.3
通讯作者：
Simon, C.
中科院分区：
文献类型：
--
作者：
Villars, C.;Bergouignan, A.;Simon, C.
2005年10月27日，李国伟，李国伟.结合心率和单轴加速度测量年轻男性自由生活体力活动能量消耗的有效性。J Appl Physiol 113：1763-1771，2012.首次发表于2012年9月27日; doi：10.1152/japplphysiol.01413.2011.-与单独使用ACC相比，将加速度测量法（ACC）与心率（HR）监测相结合被认为可以改善活动能量消耗（AEE）估计，以评估ACC和HR单独使用或组合使用的有效性。本研究的目的是估计AEE在自由生活条件下相比，双标记水（DLW）。在35名18至55岁的男性（11名瘦的活动; 12名瘦的久坐; 12名超重的久坐）中，通过DLW协议测量了10天的自由生活AEE，佩戴Actiheart（结合ACC和HR）和RT 3加速计。根据运动耐量试验，使用HR/AEE关系的组或个体校准来估计AEE。在一个子集（n = 21），AEE变化（Δ AEE）后1个月的停训（活跃的受试者）或8周的训练（久坐的受试者）进行了测量。Actiheart联合ACC/HR的估计值比单独使用HR或ACC的估计值更准确。Actiheart组校准的ACC/HR估计值的准确性适中[组内相关系数（ICC）= 0.62]，无偏倚，但均方根误差（RMSE）和一致性限（LOA）较高。通过个体校准，估计值的平均偏差减少了三分之一，如RMSE和LOA（ICC = 0.81）。与组校准估计值相比，Actiheart个体校准ACC/HR估计值解释了DLW-Delta AEE方差的40%（ICC = 0.63）。本研究支持Actiheart ACC/HR估计值与DLW测量的AEE在不同健身水平的瘦和超重男性中的良好一致性。HR/AEE关系的个体校准对于在个体水平而不是在组规模上进行AEE估计和Delta AEE评估是必要的。
Villars C, Bergouignan A, Dugas J, Antoun E, Schoeller DA, Roth H, Maingon AC, Lefai E, Blanc S, Simon C. Validity of combining heart rate and uniaxial acceleration to measure free-living physical activity energy expenditure in young men. J Appl Physiol 113: 1763-1771, 2012. First published September 27, 2012; doi:10.1152/japplphysiol.01413.2011.-Combining accelerometry (ACC) with heart rate (HR) monitoring is thought to improve activity energy expenditure (AEE) estimations compared with ACC alone to evaluate the validity of ACC and HR used alone or combined. The purpose of this study was to estimate AEE in free-living conditions compared with doubly labeled water (DLW). Ten-day free-living AEE was measured by a DLW protocol in 35 18- to 55-yr-old men (11 lean active; 12 lean sedentary; 12 overweight sedentary) wearing an Actiheart (combining ACC and HR) and a RT3 accelerometer. AEE was estimated using group or individual calibration of the HR/AEE relationship, based on an exercise-tolerance test. In a subset (n = 21), AEE changes (Delta AEE) were measured after 1 mo of detraining (active subjects) or an 8-wk training (sedentary subjects). Actiheart-combined ACC/HR estimates were more accurate than estimates from HR or ACC alone. Accuracy of the Actiheart group-calibrated ACC/HR estimates was modest [intraclass correlation coefficient (ICC) = 0.62], with no bias but high root mean square error (RMSE) and limits of agreement (LOA). The mean bias of the estimates was reduced by one-third, like RMSE and LOA, by individual calibration (ICC = 0.81). Contrasting with group-calibrated estimates, the Actiheart individual-calibrated ACC/HR estimates explained 40% of the variance of the DLW-Delta AEE (ICC = 0.63). This study supports a good level of agreement between the Actiheart ACC/HR estimates and DLW-measured AEE in lean and overweight men with varying fitness levels. Individual calibration of the HR/AEE relationship is necessary for AEE estimations at an individual level rather than at group scale and for Delta AEE evaluation.