Abstract
The purpose of this study was to investigate work load under various pace conditions in repetitive work with difficulty concerning sight and hand movements connected with sight in terms of psychophysiological function and human performance. Pace conditions were based on PTS, and subjects were 6 healthy men. The task was performed by putting beads in the holes the places and colors of which were arranged. The experimental period lasted for 120min at the MTM pace of conveyers (I), for 120min at the WF pace (II), for 138min at the ‘MTM×1.15’ pace (An allowance of 15% was included) (III), for 96min at the WF pace (IV) and for 120min at the self-pace (V).
The results obtained were as follows:
1) In tasks (II) and (IV), the physiological function greatly lowered compared with that in the others, the frequencies of the complaints of subjective symptoms increased and the performance was found to be less efficiently performed.
2) In task (V), the physiological function did not lower significantly. However, compared with task (I), the frequencies of the complaints of subjective symptoms and the subsidiary behaviors increased and the performance was found to be less efficiently performed.
3) The frequencies of the complaints of subjective symptoms, the subsidiary behaviors and the defective articles of task (I) decreased most of all. The amount of the finished products most increased with that of task (III).
