ANALYSIS OF UNDERHAND CUT SERVE SIDE SPIN EFFECT OF THREE LEVEL SOFT TENNIS PLAYER

• Main Authors: CHEN, JEN-LI, 陳人棣
• Other Authors: HSU, TAI-YEN
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/yf375f

碩士 === 國立臺中教育大學 === 體育學系碩士班 === 105 === ANALYSIS OF UNDERHAND CUT SERVE SIDE SPIN EFFECT OF THREE LEVEL SOFT TENNIS PLAYER Abstract The purpose of this study was to analysis effect of three level soft tennis player underhand cut side spin serve on bounce height and landing offset. The method of this study was comprised 26 soft tennis player (elementary school: 10, junior high school: 5, senior high school: 11). Each subject had underhand cut serve the ball into target area 5 times, and use 2 high speed camera(300HZ) recorded the result. Image processing by KWON 3D and Redlake software, obtain data to present by descriptive statistics, and analyzed each level underhand cut serve effect by Pearson Product-Moment Correlation(PPMC), at last analyzed different level serve effect by one-way analysis of variance. The results of this study, elementary player serve effect average landing offset is 91.21cm(min:0.51, max:201.37cm), average bounce height is 36.16cm(min:9.24, max:64.18cm); junior player serve effect average landing offset is 59.04cm(min:10.4, max:122.56cm), average bounce height is 33.05cm(min:15.91, max:48.8cm); senior player serve effect average landing offset is 52.38cm(min:0.68, max:168.33cm), average bounce height is 31.42cm(min:8.43, max:58.02cm). Each level serve effect PPMC is elementary 0.134, p = 0.353; junior -0.212, p = 0.308; senior 0.299, p = 0.026. Different level serve effect analysis of variance, landing offset F = 11.19, p = <.01; bounce height F = 2.44, p = 0.091. The conclusion of this study: a) senior serve effect(bounce height and landing offset) was significant correlated, junior and elementary serve effect were not statistically correlated. b) different level serve effect bounce height were not statistically difference; serve effect landing offset were significant difference. Keywords: bounce height, landing offset, doubles