Relations between the Symptoms and the Feeling of Fatigue

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Abstract
In the investigation of fatigue in industrial workers, the subjective feeling of fatigue experienced by them should be especially taken into consideration. This is because industrial fatigue in the real situation is considered to be fatigue expressed in the attitude, orientation and adjustment of the worker. Many researchers have used the subjective symptoms test of fatigue as a means of measuring the feeling of fatigue, and have identified the frequency of complaints of symptoms with the amount of feelings of fatigue. However, strictly speaking, the feeling of fatigue signifies over-all unpleasantness experienced by workers, and is not quite the same as complaints of symptoms of fatigue. As a part of the assessment of the work load of bank clerks and broadcasting workers, the present authors let them rate the degree of their feeling of fatigue using a 9 point scale. The results of the rating were investigated in relation to the subjective symptoms test of fatigue. (1) There was found to be a high correlation between the frequency of complaints of fatigue and the feeling of fatigue. (2) The amount of feeling of fatigue is different for the type of symptom. (3) The more the complaints of symptoms of fatigue, the greater the degree of feeling of fatigue. This relation is nearly linear over most of the scale. It is presumed that some change in the quality of the complaints of symptoms happens.

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