VDT作業における心拍変動時系列解析
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概要
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The aim of this study is to analize a time series of E. C. G. (electro cardio graph), respiration and nictitations during the VDT (video display terminal) work. The work was to add two numbers of ten digit decimal numbers which were given on a display successively. The VDT work was performed during 90 minutes. Eight male students participated in this study. During VDT work, the ECG, respiratory wave forms and nictitations were continuously stored on an FM tape recorder. The power spectral density of R-R interval was computed with a program for the autoregressive model. These results indicate that VDT work is associated with dominant spectral peaks.