TY - GEN
T1 - Fatigue evaluation for work load of Visual Display Terminals (VDT) operation
AU - Hachiya, Yuriko
AU - Ogai, Harutoshi
AU - Okazaki, Hiroko
AU - Fujisaki, Takeshi
AU - Uchida, Kazuhiko
AU - Oda, Susumu
AU - Wada, Futoshi
AU - Mori, Koji
PY - 2007
Y1 - 2007
N2 - A method for the analysis of fatigue parameters has been rarely researched in VDT operation. Up to now, fatigue was evaluated by changing of biological information. If signals regarding fatigue are detected, fatigue can be measured. This study proposes an experiment and analysis method to extract parameters related to fatigue from the biological information during VDT operation using the Independent Component Analysis (ICA). An experiment had 11 subjects. As for the experiment were light loaded VDT operation and heavy loaded VDT operation. A measurement item were amount of work, a mistake number, subjective symptom, surface skin temperature (forehead and apex nasi), heart rate, skin blood flow of forearm and respiratory rate. In the heavy loaded operation group, mistake number and subjective symptom score were increased to compare with the other. And Two-factor ANOVA was used for analysis. The result of mistake number was confirmed that heavy loaded. After the moving averages of waveshapes were calculated, it was made to extract independent components by using the ICA. The results of the ICA suggest that the independent components increase according to accumulation of fatigue. Thus, the independent components would be a possible parameter of fatigue.
AB - A method for the analysis of fatigue parameters has been rarely researched in VDT operation. Up to now, fatigue was evaluated by changing of biological information. If signals regarding fatigue are detected, fatigue can be measured. This study proposes an experiment and analysis method to extract parameters related to fatigue from the biological information during VDT operation using the Independent Component Analysis (ICA). An experiment had 11 subjects. As for the experiment were light loaded VDT operation and heavy loaded VDT operation. A measurement item were amount of work, a mistake number, subjective symptom, surface skin temperature (forehead and apex nasi), heart rate, skin blood flow of forearm and respiratory rate. In the heavy loaded operation group, mistake number and subjective symptom score were increased to compare with the other. And Two-factor ANOVA was used for analysis. The result of mistake number was confirmed that heavy loaded. After the moving averages of waveshapes were calculated, it was made to extract independent components by using the ICA. The results of the ICA suggest that the independent components increase according to accumulation of fatigue. Thus, the independent components would be a possible parameter of fatigue.
KW - Biological information
KW - Fatigue
KW - ICA (Independent Component Analysis)
KW - VDT (Visual Display Terminals)
UR - http://www.scopus.com/inward/record.url?scp=48349093207&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48349093207&partnerID=8YFLogxK
U2 - 10.1109/ICCAS.2007.4406654
DO - 10.1109/ICCAS.2007.4406654
M3 - Conference contribution
AN - SCOPUS:48349093207
SN - 8995003871
SN - 9788995003879
T3 - ICCAS 2007 - International Conference on Control, Automation and Systems
SP - 1887
EP - 1892
BT - ICCAS 2007 - International Conference on Control, Automation and Systems
T2 - International Conference on Control, Automation and Systems, ICCAS 2007
Y2 - 17 October 2007 through 20 October 2007
ER -