本研究目的主要探討足弓式與全腳掌兩種不同出發動作之動力學參數，分析兩者在參數上之差異。研究對象為5名優秀青少年蹼泳選手，藉由高速攝影機(120hz)獲取選手15公尺衝刺時間;測力板(1200hz)擷取受試者在兩種不同出發方式之動力學參數，以相依樣本t檢定，比較兩者之差異。研究結果發現:在出發15公尺的衝刺上，足弓式的出發快於全腳掌式;在動力學參數部份，水平作用力在足弓式較大，可以幫助受試者在出發時獲得較大的水平速度。

The purpose of this study was to compare the kinetic parameters of two different starting drivesstand postures of elite fin swimming athletes.The subjects are five elite fin swimmers. This studyemployed two different equipment: high speed digital video camera (Casio EX-ZR100, 120Hz) andthree-dimens-ional force plate (Kistler 9260AA6, 1200Hz). The t-test (α=.05) was used to test thedifferences of twostart movements.Ultimately, the results showed the arch of foot standing postureand the sole of foot standing posture were significant differences in 15 meters time and the peak ofhorizontal force. In short, we can conclude that the arch standing postureare better than whole footposture.

蹼泳; 動力學; 出發動作

Fin swimming; kinetic; start movement