網線材質張力及拍面大小對網球拍彈性恢復系數之影響

石 世濱(Shi-Bin Shih), 相 子元(Tzyy-Yuang. Shang)

研究成果: 雜誌貢獻文章

摘要

The purpose of this study was to investigate the effect of racket size, string material and string tension on the coeffient of restitution (COR) for tennis rackets. In order to get accurate results, the racket was fixed with the clamp and the tennis ball was controlled to impact the racket vertically. The whole experimental procedure was filmed by NAC high speed camera at the rate of 1000 frame per second. The video tape was digitized using Perk Performance System, and the date were then analyzed with three-way ANOVA. The result of this study were summarized as followed: 1. For tennis racket, the interaction effects among the racket size, string material land string tension are not significant, but each individual factor (racket size, string material, or string tension) has significantly effect on the COR value. 2. The COR value of 40-1b string tension racket is significantly higher than those of other string tension for tennis. 3.The COR value of over-size racket is significantly highetr than of small size racket for tennis. 4.The COR value of cotton string racket is significantly higher than of nylon string racket for tennis.
原文Chinese
頁(從 - 到)189-200
頁數12
期刊體育學報
發行號23
DOIs
出版狀態已發佈 - 1997

Keywords

  • 網球拍
  • 拍面
  • 網線材質
  • 張力
  • Tennis racket
  • Racket size
  • String tension
  • String material,COR

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