Spectrum Analysis of Clothing Pressure Fluctuation.

The fluctuation of the clothing pressure was analyzed. The amplitude of the fluctuation was affected by the positions of a subject rather than the shape of wearing clothes. Under static conditions a peak at 0.2_??_0.4 Hz was observed in the power spectrum owing to the respiration. In the lower frequency range of the peak the spectrum changed depending upon the clothes and the positions. The spectrum components in this range appeared remarkably in the case of comfortable clothes or positions. The results showed that the analysis of the fluctuation in the clothing pressure was useful to evaluate the comfort of the clothes.