バレーボールのサーブについての一考察

概要

論文の詳細を見る
The purpose of this study is to take up a slide-serve to the way of hitting the ball without spinning it. As the first step for studying how to be produced the ball hitting for a change of pace how to way and degree; the actual condition is examined with 16mm camera. Results were as follows; In spite of the ball being hit in almost same condition, it can be analyzed following 3 kinds of type 1. About the serve A : the highness is low and the time is short and after a short time the horizontal motion distance the ball reaches a top. And, after passing the top, the time is short and the horizontal motion distance is also short and at the time to touch of the floor, the ball drops in nearly perpendicular condition. 2. The serve C is symmetrical A. The highness is high and the time is long, and after longer time the horizontal motion distance the ball reaches a top. After passing the top, the time is long and the horizontal motion distance is also long; and at the time to touch of the floor, the ball drops in a condition of the drop angles being small. 3. The serve B, till the time the ball reaches a top, is the same condition with C. And, after the ball passing the top, it drops on the floor in the same condition with A.