其他摘要：This study was attempted to investigate the characteristics of fundamental motor ability and its degree of contribution to motor performance in various sport activities. The sixteen test items, which were picked out of the areas of physique, physical function and motor ability, were administered to 394 athletes (selected out of 9 sport teams) and 50 non-athletes of 10 senior high schools. Principal factor analysis was applied to the correlation matrix of each team which was calculated with these variables, respectively. Thus, the first principal factor was interpreted as a fundamental motor ability factor, because this factor correlated with most of variables at high significant level and in addition, had the largest amount of contribution to total variance. Thus, the characteristics of fundamental motor ability, the degree of contribution of fundamental motor ability factor to total variance and the degree of contribution of subsets of variables to the variance of fundamental motor ability factor were investigated in each sport team, respectively. The results were summarized as follows: 1. Track and field and basketball teams were superior in fundamental motor ability, while tennis and non-athletes were poor. 2. As for the degree of contribution of fundamental motor ability to motor performance in sport activities, baseball team showed the largest value, and non-athletes, tennis and soccer, the next largest values, while basketball team showed the smallest value, and track and field, gymnastics and judo, the next smallest values. Consequently, it is considered that the teams, whose fundamental motor ability factor showed the large contribution to motor performance, are needed to have more fundamental motor ability in performing their own sports than the other teams whose contributions were not so large. 3. As for the degree of contribution of the subsets of variables to the variance of fundamental motor ability factor, physique variables were remarkably larger than the other variables in all teams except gymnastics and judo teams. In addition, as to the other elements but physique element, the explosive strength of lower and upper limbs and static muscular strength were somewhat larger. But if another investigation would be made by removing the influence of physique variables, a certain difference will be resulted in.
