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首页> 外文期刊>Applied Ergonomics >The use of a heel-mounted accelerometer as an adjunct measure of slip distance
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The use of a heel-mounted accelerometer as an adjunct measure of slip distance

机译：使用安装在脚跟上的加速度计作为滑移距离的辅助量度

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A human-centered measure of floor slipperiness could be useful as an adjunct to conventional tribologic measures. This paper reports on the development and evaluation of a measure of slip distance based on variables derived from the signal of a heel-mounted accelerometer. Twenty-one participants walked on a laboratory runway under several surface slipperiness conditions at three walking speeds during a protocol designed to produce a wide range of slip distances at heel strike. Analysis of variance showed significant effects of slip distance (no-slip, micro-slip and slide), walking speed (1.52, 1.78 and 2.13 m/s) and their interactions on peak forward acceleration, peak vertical acceleration and deceleration time of the heel following heel strike in 704 trials. Regression analysis of slip distance and deceleration time showed the strongest relationship with R{sup}2 = 0.511. Large individual variation in the strength of this relationship was observed. The heel-mounted accelerometer may have utility as an adjunct measure in the evaluation of floor slipperiness, particularly for field applications where direct measurement may not be feasible.
机译：以人为中心的地板打滑度测量方法可以作为常规摩擦学测量方法的补充。本文报告了基于从安装在脚后跟的加速度计信号中得出的变量的滑移距离测量方法的开发和评估。在一项旨在在脚后跟撞击时产生较大滑移距离的规程中，二十一名参与者在几种表面滑爽条件下以三种步行速度在实验室跑道上行走。方差分析表明，滑移距离（无滑移，微滑移和滑移），步行速度（1.52、1.78和2.13 m / s）及其交互作用对峰值向前加速度，峰值垂直加速度和后跟减速时间有显着影响进行704次试验后脚跟撞击。滑移距离和减速时间的回归分析显示出最强的关系，R {sup} 2 = 0.511。观察到这种关系强度的个体差异很大。安装在脚后跟的加速度计可作为评估地板滑度的辅助措施，尤其是对于直接测量可能不可行的现场应用。

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