Equal comfort contours for whole body vertical, pulsed sinusoidal vibration

Abstract A method by which subjects equate stimuli by active adjustment (the method of adjustment), has been used to construct a set of equal comfort curves for both men and women in an unrestrained sitting position, covering the frequency range of 4 to 80 Hz. Comparisons are made between the responses of men and women and the results of this study are compared with those of previous investigations where a form of comparative judgement was used. The present recommendations of the International Standards Organization on human vibration exposure are critically compared with the results of this study.