青年期における垂直跳びの跳躍高調節能力と各就学年代の運動量との関係

－開眼および閉眼条件を用いた検討－

抄録

The purpose of this study was to examine the relationship between ability to control jump height in vertical jump in youth and individual exercise amount in various school-age groups. One hundred twenty subjects participated in the experiment. All the subjects were evaluated for their ability to control jump height in vertical jump in the eye-opened and eye-closed states. We investigated the amount of exercise (exercise period × intensity) of all the subjects in each school-age group (preschool, lower and upper elementary school grades, junior high school, high school, and university [current]) and then examined the relationship of both. The gap between the jumping target values (20%, 40%, 60%, and 80% of the maximum jump height) and generated jumping height based on the degree of subjective effort exerted was treated as the ability to control jump height. For statistical analysis, analysis of covariance was performed using a mixed model. The dependent variable was the gap between the jumping target value and the generated jumping height based on the degree of subjective effort exerted. The independent variables were jumping target value, eye-opened or eye-closed state, sex, maximum jump height, amount of exercise of the subjects in each school-age group, and subject effect. The results of the statistical analysis showed significant F values for the jumping target value, eye-opened or eye-closed state, and the amount of exercise of the subjects in the lower elementary school grades. These results suggest that the amount of exercise in subjects of lower elementary school grades affects their ability to control jump height in vertical jump in youth.