基礎運動能力の領域中にしめる各下位能力領域の割合と加齢に伴う変化 : 高校生を対象にして

抄録

This study was designed to investigate the relative contribution of motor ability elements to fundamental motor ability and its change due to age increase. The physique test (4 items) and sport test (developed by the Ministry of Education, Science and Culture) were carried out annually in grades 10-12, using five sample groups (the total sample size was 1,897 high school students; 892 boys and 1,005 girls) enrolled in K senior high school in the period of 1970-1974. The above data were analyzed using a factor analysis procedure in each grade and each sex, respectively. Judging from the results of the variance ratio of each ability element extracted as factor to the fundamental motor ability area and its change due to age increase, the following conclusions were obtained. 1. In both boys and girls of all five sample groups, it could be inferred that the physique elements such as stature, sitting height, weight, and chest girth, greatly contributed to the fundamental motor ability. 2. In both boys and girls of all five sample groups, no consistent trend due to age increase was shown in terms of the degree of contribution of their motor ability factors. 3. On the degree of contribution of each motor ability subdomain extracted as factor to a total variance, the comparison between boys and girls of all five groups showed no significant difference, and no significant difference was observed between five sample groups on the degree of contribution of each motor ability subdomain to a total variance. 4. Judging the mean degree of contribution of motor ability subdomain, it was inferred that there would be no significant variation due to age increase in the degree of contribution of each motor ability subdomain to fundamental motor ability. 5. When comparing fundamental motor abilities between boys and girls, a certain significant difference was shown in muscular strength and in flexibility. However, three subdomains such as body bulk, body linearity and fundamental motor skill were extracted in boys and girls. It seems that. only 10 to 11% of total variance could be explained by muscular strength and flexbility subdomains which showed sex difference in the factorial structure of fundamental motor ability.