Estimation of energy expenditure by a portable accelerometer.
Estimation of energy expenditure by a portable accelerometer.
复制标题
通过便携式加速度计估算能量消耗。
DOI：
10.1249/00005768-198315050-00010
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发表时间：
1983
影响因子：
4.1
通讯作者：
F. Nagle
中科院分区：
文献类型：
--
作者：
H. Montoye;R. Washburn;S. Servais;A. Ertl;J. Webster;F. Nagle
开发了一种小型便携式加速度计，用于估计日常活动的能量消耗。据报道，与目前市场上的运动计数器相比，该加速度计是一个改进。21名受试者在腰部佩戴加速度计的情况下，测量了14种不同运动的需氧量。腰部也戴着运动计数器(水银开关)，左手腕上也戴着另一个。加速度计读数的重复性很高(4名受试者，14项活动；r=0.94)，优于腰部运动计数器(r=0.63)和手腕运动计数器(r=0.74)。在估计需氧量(VO2)时，基于21名受试者和14项活动的估计标准误差为6.6ml×min-1×kg-1。这也比腰部运动计数器(9.2ml X min-1 X kg-1)或手腕运动计数器(7.9ml X min-1 X kg-1)更好(更小)。
A small portable accelerometer was developed to estimate the energy expenditure of daily activities. The accelerometer is reported to be an improvement over movement counters currently on the market. The oxygen requirement of 14 different activities was measured in 21 subjects while each wore the accelerometer on the waist. A movement counter (mercury switch), which is available commercially, was also worn on the waist and another was worn on the left wrist. The reproducibility of the accelerometer readings was high (4 subjects, 14 activities; r = 0.94) and was superior to either the waist movement counter (r = 0.63) or the wrist movement counter (r = 0.74). In estimating oxygen requirement (VO2) the standard error of estimate, based on 21 subjects and 14 activities, was 6.6 ml X min-1 X kg-1 for the accelerometer. This was also better (smaller) than for the waist movement counter (9.2 ml X min-1 X kg-1) or for the wrist movement counter (7.9 ml X min-1 X kg-1).