Abstract
In this report, 21 items relating with girth were measured to understand the changes in body-forms of each sex between the ages of seven and fifteen. The girth, breadth, depth and shape were investigated.
The following results were obtained :
(1) Both sexes have most significant difference between two successive years of age till 14 years old.
(2) The period of the most rapid increase in most of the items is 13-14 years of age with male, 11-12 with female.
(3) The difference in the ratios of depths of chest, waist and hip to respective breadths between male and female becomes significant around twelve years of age.
(4) The values of the correlations between girths of various parts and stature, chest girth, and weight show the highest with weight and the second with chest girth.
Since the correlation between girths and weight is high, we can estimate the measurements of girths from the weight.
