［Purpose］The purpose of this study was to examine the relationship between physical fitness and attitude for sports and physical education class, school life, academic achievement, and parenting attitude. Moreover, we also aimed to determine the requirements for belonging to the high physical fitness group. ［Method］A survey was conducted among 1891 fifth and sixth grade children from elementary schools to analyze the attitude for sports and physical education class, school life, academic achievement, and parenting attitude. The records of physical fitness tests of children were also obtained from the respective schools. One-way ANOVA was used to examine the differences in the average of evaluation value in each factor by physical fitness level. The requirements for belonging to the high physical fitness group were determined using decision tree analysis. ［Results and Discussion］Significant differences were found among every physical fitness level in intention for sports, attitude for physical education class, and academic achievement. In order to belong to the high physical fitness group, the most important factor was the attitude towards physical education class, followed by the academic achievement above the average level, and the high intention for sports. The findings suggest that in addition to the efforts aimed to increase opportunities and amount of physical activity, efforts to cultivate children's attitudes and intentions, including improving academic ability, will be crucial in the future.
