Age differences in Principal Component Analysis for Physique and Body Build Indices of School Children

概要

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For comparing the pattern of interrelationship of seven anthropometric measurements and eight body build indices in the different phase of growth, principal component analysis was applied to each of ten cohorts of three-year age range consisting of 7-18 years old school children of Nase City. The loading patterns of component I indicating body size started to change at the time corresponding to adolescent growth spurt. Rohrer index, Livi index, ponderal index and relative weight were highly significantly correlated in most cohorts with component II representing body build, and are considered to be appropriate as body build indices. Those indices, however, are much less suitable in a quantitative sense for body build indices in girls at puberty who correspond to junior high school girls. W/H and Quetelet index were involved bilaterally with body size and body build and are not specified either of them. The skinfold thickness was closely associated with component III which is orthogonal to componentII must be taken into consideration in evaluating body fatness of children.
日本人類学会の論文