Montoye H J, Washburn R, Servais S, Ertl A, Webster J G, Nagle F J
Med Sci Sports Exerc. 1983;15(5):403-7.
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).
研发了一种小型便携式加速度计，用于估算日常活动的能量消耗。据报道，该加速度计比目前市场上的运动计数器有所改进。在21名受试者佩戴加速度计于腰部的同时，测量了14种不同活动的氧气需求量。还在腰部佩戴了一种市售的运动计数器（水银开关），另一个则戴在左手腕上。加速度计读数的重复性很高（4名受试者，14种活动；r = 0.94），优于腰部运动计数器（r = 0.63）或手腕运动计数器（r = 0.74）。在估算氧气需求量（VO2）时，基于21名受试者和14种活动，加速度计的估计标准误差为6.6 ml·min-1·kg-1。这也比腰部运动计数器（9.2 ml·min-1·kg-1）或手腕运动计数器（7.9 ml·min-1·kg-1）更好（更小）。
