Department of Industrial and Management Engineering, Keimyung University, 1000 Shindang-Dong, Dalseo-Gu, Taegu 704-701, South Korea.
Appl Ergon. 2012 Mar;43(2):277-82. doi: 10.1016/j.apergo.2011.06.002. Epub 2011 Jun 30.
The purpose of this study is to investigate the relationships between subjective measures of discomfort and objective measures related to the assessment of postural stresses based on literature survey. Objective measures included posture holding time, maximum holding time (MHT), torque at joints, lifting index (LI) and compressive force (CF) at L5/S1. The major relationships identified in this literature survey were the following: 1) postural discomfort linearly increased with increasing holding time, and holding force, 2) whole body discomfort was inversely linearly proportional to the MHT, 3) body-part discomfort was related to objective measures such as torque at the relevant joint, 4) discomfort was strongly linearly related to LIs and CFs, and 5) the discomfort measured with the magnitude estimation was linearly related to that measured with Borg CR10. Thus, it is thought that discomfort might be used as a measure for quantifying postural stresses.
本研究旨在通过文献调查，探讨基于文献调查的主观不适测量与与姿势负荷评估相关的客观测量之间的关系。客观测量包括姿势保持时间、最大保持时间（MHT）、关节扭矩、提举指数（LI）和 L5/S1 的压缩力（CF）。本文献调查中确定的主要关系如下：1）姿势不适随保持时间和保持力的增加呈线性增加，2）全身不适与 MHT 呈反比线性关系，3）身体部位不适与相关关节的扭矩等客观测量值有关，4）不适与 LI 和 CF 呈强线性关系，5）用数量估计法测量的不适与 Borg CR10 测量的不适呈线性关系。因此，人们认为不适可以用作量化姿势负荷的一种测量方法。
