Kurimori S, Oka T, Kakizaki T
National Institute of Industrial Health, Kawasaki, Japan.
Sangyo Igaku. 1994 Jan;36(1):9-15. doi: 10.1539/joh1959.36.9.
An assessment of mental stress and fatigue was undertaken in 12 male students who did their best to perform a calculating task (addition and subtraction of 2-digit numbers) for 11 hours on a workday and rested without any task for 11 hours on a restday. During the work period, occipital midline beta-2 (Oz beta 2) amplitude, urinary adrenaline (A) and noradrenaline (NA) excretion, heart rate (HR), blood pressure (BP), subjective rating of tiredness (SRT), and subjective symptoms of fatigue (SSF) were higher than those during the rest period. Oz beta 2 amplitude, diastolic pressure (DP), critical flicker fusion value (CFF), and performance level (number answered, percent correct) remained unchanged over the rest/work period. Moreover, A and NA excretion, HR, and systolic pressure (SP) changed parallel with their resting level. With the lapse of working hours, SRT and SSF elevated. These results suggest that performance of calculating task causes mental stress which remains constant throughout the work period and that subjective fatigue increases with extension of working hours.
对12名男学生进行了心理压力和疲劳评估，这些学生在工作日尽力进行了11个小时的计算任务（两位数的加减法），并在休息日无任务休息11个小时。在工作期间，枕部中线β-2（Oz β2）振幅、尿肾上腺素（A）和去甲肾上腺素（NA）排泄量、心率（HR）、血压（BP）、疲劳主观评分（SRT）以及疲劳主观症状（SSF）均高于休息期间。Oz β2振幅、舒张压（DP）、临界闪烁融合值（CFF）和表现水平（回答数量、正确率）在休息/工作期间保持不变。此外，A和NA排泄量、HR以及收缩压（SP）与其休息水平呈平行变化。随着工作时间的推移，SRT和SSF升高。这些结果表明，进行计算任务会导致心理压力，且在整个工作期间保持不变，同时主观疲劳会随着工作时间的延长而增加。
