Dynamics Analysis of Table Tennis Serves in Terms of the

• Main Authors: Hsiao, Mei-Chu, 蕭美珠
• Other Authors: Su, Chen-Kai Ph.D
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/63004127257738647166

碩士 === 臺北巿立體育學院 === 運動科學研究所 === 91 === Dynamics Analysis of Table Tennis Serves in Terms of the Ball’s Bounce Against Different Kinds of Rubber Sheet. Hsiao, Mei-Chu Su, Chen-Kai Ph.D June，2003 Abstract This study aims to access the motion characteristics of the table tennis serves in terms of the small and large balls’ bounce against different kinds of rubber sheet and the different dropping velocity in the small and large balls. The study object contains four types of blade: the first type is the blade with the sponge rubber sheet (Butterfly Sriver); the second type is the blade covered with long pimples and the sponge rubber sheet (Ritc 837); the third type is the blade covered with long pimples but without the sponge rubber sheet (Butterfly Feint-ox); the fourth type is the blade covered with short pimples and the sponge rubber sheet (Butterfly Impartial). The diameter of the tennis ball in this study is 38mm and 40mm This study attempts to access the variation of the dropping velocity, the angle velocity and the reflection angle in terms of the large and small balls’ bounce against four types of rubber sheet. The high-speed video camera is employed to capture images which are analyzed through Silicon Coach and the result is achieved as follows: a.The dropping velocity of the small ball is faster than that of the large ball from the height of 100cm, 150cm and 200cm. b.The velocity of the large and small balls in bouncing against the first and the fourth type of rubber sheet is faster than that of the large and small balls in bouncing against the second and the third type of rubber sheet. c.The reflection angle is larger when the large and small balls bounce against the first, second and third type of rubber sheet from the height of 50 cm and 100 cm. d.The reflection angle of the large and small balls in bouncing against the first type of rubber sheet is similar to that of the large and small balls in bouncing against the fourth type of rubber sheet, while the reflection angle of the large and small balls in bouncing against the first and the fourth type of rubber sheet is larger than that of the large and small balls in bouncing against the second and the third type of rubber sheet. Keywords: table tennis, bounce, rubber sheet characteristics