Patrik Johansson H, Rossander-Hulthén Lena, Slinde Frode, Ekblom Björn
The Astrand Laboratory of Work Physiology, Stockholm University College of Physical Education and Sports, Sweden.
Br J Nutr. 2006 Mar;95(3):631-9. doi: 10.1079/bjn20051527.
The aim of the present study was: (1) to develop a new method for total energy expenditure (TEE) assessment, using accelerometry (ACC) and heart rate (HR) telemetry in combination; (2) to validate the new method against the criterion measure (DLW) and to compare with two of the most common methods, FLEX-HR and ACC alone. In the first part of the study VO(2), HR and ACC counts were measured in twenty-seven subjects during walking and running on a treadmill. Considering the advantages and disadvantages of the HR and ACC methods an analysis model was developed, using ACC at intensities of low and medium levels and HR at higher intensities. During periods of inactivity, RMR is used. A formula for determining TEE from ACC, HR and RMR was developed: TEE = 1.1x(EQ(HR) x TT(HR) + EQ(ACC1) x TT(ACC1) + EQ(ACC2) x TTACC2 + RMR x TT(RMR)). In the validation part of the study a sub-sample of eight subjects wore an accelerometer, HR was logged and TEE was measured for 14 d with the DLW method. Analysis of the Bland-Altman plots with 95 % CI indicates that there are no significant differences in TEE estimated with HR-ACC and ACC alone compared with TEE measured with DLW. It is concluded that the HR-ACC combination as well as ACC alone has potential as a method for assessment of TEE during free-living activities as compared with DLW.
（1）开发一种结合使用加速度计（ACC）和心率（HR）遥测技术来评估总能量消耗（TEE）的新方法；（2）对照标准测量方法（双标水法，DLW）验证该新方法，并与两种最常用的方法（FLEX-HR和单独使用ACC）进行比较。在研究的第一部分，对27名受试者在跑步机上行走和跑步期间的VO₂、HR和ACC计数进行了测量。考虑到HR和ACC方法的优缺点，开发了一种分析模型，在低强度和中等强度时使用ACC，在较高强度时使用HR。在不活动期间，使用静息代谢率（RMR）。开发了一个根据ACC、HR和RMR确定TEE的公式：TEE = 1.1×（EQ(HR)×TT(HR)+EQ(ACC1)×TT(ACC1)+EQ(ACC2)×TTACC2+RMR×TT(RMR)）。在研究的验证部分，八名受试者的子样本佩戴了加速度计，记录了HR，并使用DLW方法测量了14天的TEE。对具有95%置信区间的Bland-Altman图的分析表明，与用DLW测量的TEE相比，用HR-ACC和单独使用ACC估计的TEE没有显著差异。得出的结论是，与DLW相比，HR-ACC组合以及单独使用ACC都有潜力作为评估自由生活活动期间TEE的方法。
