[Fatigue estimation of visual display terminal (VDT) workers by physiological data--preliminary study of a new computer program for VDT work analysis].
The methods for assessing VDT workload based on individual capabilities are necessary to evaluate general fatigue by VDT work. We have developed a new computer program for assessing data entry performance of each individual. Four healthy male volunteers conducted a data entry task at their own pace using this program under a controlled environment. They performed the task for 30 minutes twice with 10 minutes rest between them. As a result, the average number of inputs was 133.2 characters/min in the first task and 129.1 characters/min after taking the rest. The error rate was 8.6% and 10.6% in each task. This program was useful to evaluate their data entry performance. We also reported our concern with a drop in nasal skin temperature that was observed during these VDT tasks.
Uchida
Kazuhiko
K
Occupational Health Training Center, University of Occupational and Environmental Health, Yahatanishi-ku, Kitakyushu 807-8555, Japan.
Fujisaki
Takeshi
T
Hachiya
Yuriko
Y
Yoshikawa
Rie
R
Oda
Susumu
S
Mori
Koji
K
Ogai
Harutoshi
H
D000328:Adult; D001831:Body Temperature; D016288:Computer Terminals; D005221:Fatigue / Q000175:diagnosis*; D006801:Humans; D008297:Male; D009666:Nose; D012879:Skin Physiological Phenomena; D012984:Software; D016526:Workload