知能指数から見た精神遅滞児の形態と運動機能

抄録

The purpose of the present study was to examine the relationships between three factors (physique, motor ability and intelligence quotient) of the 57 mentally retarded boys and girls from 8 to 17 years old in 1989. The physique factor was composed of standing height and body weight. The motor ability factor was composed of 50m dash run, standing broad jump and softball throw for distance. Their intelligence quotients were rated by Tanaka-Binet intelligence test. Their z-scores of physique and motor ability were computed by the means and standard deviations of physique and motor ability in the Japanese normal children.
The following results were obtained.
1) The mentally retarded boys and girls had significantly moderate correlation coeffients between z-scores of 50m dash run, standing broad jump, softball throw and intelligence quotients.
2) There were no relationships between z-scores of physique and intelligence quotients in both sexes with the exception of body weight in girls. The mentally retarded girls had significantly negative correlation coefficient between body weight and intelligence quotients.
3) There were no relationships between z-scores of standing height and motor ability in both sexes. The mentally retarded boys had significantly positive correlation coefficients between the z-scores of body weight and the z-scores of standing broad jump, softball throw.