蹴球動作におけるボールスピード獲得に関与する要素の発達について
1993 年 1993 巻 21 号 p. 15-20
詳細
1993 年 1993 巻 21 号 p. 15-20
The purpose of this study is to investigate the development of factors that have effects upon gaining ball-speed in kicking motion under two different ball conditions: stationary and tee-up. Fifty one boys aged from 5 to 12 years, were filmed by the use of a high-speed camera operated at 64fps while they were kicking. Multiple regression analysis was applied to get interrelationship among ball speed, maximal swing speed, swing speed, ankle angles and knee angles at the impact. At each stage, from 5 to 12 years of age, the ball speed depended on the maximal swing speed as a whole, especially remarkable under 9 years of age. At the stage of 9 and 10 years of age, ball speed was supposed to depend upon other technical factors as well. At stage of 11 and 12 years of age, in addition to the maximal swing speed, other muscular factors might also be related to the ball speed.
