目的：比較成年及青少年網球選手間進行原地高壓球在上肢關節加速期運動學之差異。 方法：以三位成年男子及三位青少年男子網球選手，共六人為受試者；使用一部速度為每秒500張畫面的Mega Speed MS1000高速攝影機，從受試者矢狀面二度空間拍攝進行原地高壓球之擊球過程，利用SiliconCOACH Pro動作分析軟體進行數位化處理，以獨立樣本t 考驗檢定成年及青少年男子網球選手間原地高壓球的差異。 結果：（一）成年及青少年男子網球選手間之原地高壓球擊球前、後的拍頭平均速度沒有顯著差異。（二）青少年男子網球選手原地高壓球腕關節擊球前的平均速度大於成年男子網球選手；（三）青少年男子網球選手原地高壓球擊球後的肘關節平均速度顯著高於成年男子網球選手；（四）青少年男子網球選手原地高壓球擊球後的肩關節平均速度顯著高於成年男子網球選手。（五）成年及青少年男子網球選手間之原地高壓球擊球瞬間的球拍水平角度沒有顯著差異。

Purpose: The purpose of this study was to compare the static smash differences of kinematics between the adult and the junior male tennis players. Methods: Three adult male tennis players and three boy tennis players participated in this study. A Mega Speed MS1000 high-speed cameras (500 Hz) were to record the Static Smash strokes. The images were digitized by SiliconCOACH Pro motion analysis software. Differences between the adult and the junior male tennis players were analyzed by t-test. Results: The pre-impact and post-impact velocities of racket-head were no significantly difference between the adult male and the boy tennis players. The wrist pre-impact velocity of the static smash by the boy tennis players was higher than the static smash, the backward smash, the backward-jumping smash, and the rebounded smash by the adult male tennis players. The elbow post-impact velocity of the static smash by the boy tennis players was significantly higher than adult male tennis players. The shoulder post-impact velocity of the static smash by the boy tennis players was significantly higher than the adult male tennis players. The horizontal angle of racket was no significantly difference between the adult male and the boy tennis players.