Grandjean E
Br J Ind Med. 1979 Aug;36(3):175-86. doi: 10.1136/oem.36.3.175.
Physical fatigue is a painful phenomenon which is localised in overstressed muscles. Mental fatigue is a diffuse sensation of weariness; it is a functional state, one of several intermediate conditions between the two extremes of alarm and sleep. A neurophysiological model of fatigue, involving an activating and inhibitory system has been developed. Fatigue in industrial practice has clinical symptoms: psychic instability, fits of depression and increased liability to illness. Indicators of fatigue are work of performance, subjective feelings of fatigue, electroencephalography, flicker-fusion frequency and various psychomotor and mental tests. Several field studies do, to some extent, confirm the above-mentioned concept of fatigue.
身体疲劳是一种疼痛现象,局限于过度劳累的肌肉中。精神疲劳是一种弥漫性的疲惫感;它是一种功能状态,是警觉和睡眠这两个极端之间的几种中间状态之一。一种涉及激活和抑制系统的疲劳神经生理模型已经建立。工业实践中的疲劳有临床症状:精神不稳定、抑郁发作和患病易感性增加。疲劳的指标有工作表现、主观疲劳感、脑电图、闪烁融合频率以及各种心理运动和心理测试。一些实地研究在一定程度上证实了上述疲劳概念。