判別関数値の分布からみた身体的発育発達の検討

概要

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The purpose of the present study was to examine physical growth and developmental changes by the distribution of discriminant function. The subjects, which were 7580 boys and 7614 girls from 10 to 17 years of age, were classified into 16 groups by age and sex. In this study, physical attributes and physical abilities were estimated by some discriminant functions of the measured items. The eight measured items were classified into four groups according to the domain by them: physique domain by stature and body weight; muscular strength domain by grip strength and back strength; flexibility domain by trunk extension and trunk flexion; fundamental motor skill domain by 50m dash and running broad jump. The discriminant analyses were applied to 16 groups with four variable groups and the discriminant function values were obtained for each individual in each ability domain. It may be inferred that the changes, the individual differences within group and the sex differences in physical growth and development can be examined simultaneously through investigating the distribution of multivariate discriminant function. The percentage of those who actually belong to the proper group in physique domain, muscular strength domain, flexibility domain and fundamental motor skill domain were 21.54 %, 22.54%, 13.24%, and 18.55% respectively.
〔長崎大学教養部〕の論文
1992-01-31