不同勁度網球拍對恢復係數的影響

蘇 榮立(Rong-Lih Su), 相 子元(Tzyy-Yuan Shiang)

研究成果: 雜誌貢獻文章同行評審

摘要

The purpose of this pilot study was to investigate the correlation between the stiffness of tennis racket and the coefficient of restitution(COR).The tennis racket was fixed in a clamp and the tennis ball was controlled to hit the racket with a vertical impact at certain speed(approximate 20m/sec). NAC high speed camera (1000 frame/sec) was used to record the whole experimental procedure. The video tape was then digitized using Peak Performance System After statistical analysis, the results showed: The COR of high stiffness racket (stiffness=70)、medium stiffness racket(stiffness=60)and low stiffness racket (stiffness=50)are 0.604, 0.546, 0.472, respectively. According to the ANOVA, the COR of different stiffness rackets are significantly different (stiffness 70>stiffness 60>stiffness 50).
原文???core.languages.zh_TW???
頁(從 - 到)261-268
頁數8
期刊體育學報
發行號20
DOIs
出版狀態已發佈 - 1995

Keywords

  • 網球拍
  • 勁度
  • 生物力學
  • 器材
  • Tennis racket
  • Stiffness
  • Biomechanics
  • Equipment

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