抄録
The authors write this report on a statistical treatment of measurement of foot from a viewpoint of its practical use. We measured feet and classified data after Japanese size of shoes, " Mon " (1 Mon=24.4mm) ; 9.0, 9.3, '9.5, 9.7, 10.0, 10.3, 10.5, 10.7, 11.0 Mon.
Correlation : In each size ρ=0 between foot-length and breadth. In the whole numbers (female, N=495) ρ≠0.
And we noticed foot-breadth was more correlative to foot-length than to footheight (measured from the floor to the heighest median point between Os naviculare and cuneiforme I).
Comparison of mean value : In the adjoining sizes we notice the significant difference in the mean value of the foot-length, height and heel-breadth, and not in breadth. Coefficient of variationt of foot-breadth (=s√x) is very large in cornparison with the others, and this means that the metatarsophalangeal joint plays the important roll in walking.
We, anthropologists, meet often with the problem of treatment of index. The mean value and the standard deviation in this index can be approximately calculated with ease from the values of Sx Sy, C, x and y.
