網線材質張力及拍面大小對網球拍彈性恢復系數之影響

The Laboratory Test of Tennis Rackets with Various String Material, Type and Backet Size

10.6222/pej.0023.199709.3117

石世濱(Shi-Bin Shih)；相子元(Tzyy-Yuang. Shang)

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

體育學報

23期（1997 / 09 / 01）

189 - 200

繁體中文

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.

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.

1. 陳冠廷(2017)。在不同量測時間或撞擊點下探討不同穿線方式與磅數對羽球撞擊球拍線聲音基頻之影響。長榮大學運動競技學系(所)學位論文。2017。1-67。