本研究主要目的探討手臂與擺動腿動作對成績表現之影響，本研究以五部每秒60張畫面的攝影機，拍攝九十二年全國運動會女子三級跳遠決賽選手為受試者，以14個肢段、21個關節點的人體模型，實施二度空間的影片分析，所獲得的結論如下：一、三個支撐階段上擺手擺臂角度與水平、垂直速度均未達顯著相關意義。二、擺動腿與上擺手角動量在躍跳階段與實跳距離均達顯著負相關意義（r=-0.811,r=-0.748,P＜.05）。三、跨跳階段起跳與躍跳著地時擺動腿角度與實跳距離達顯著相關水準，即較大擺動角度有利於成績表現（r=0.801,r=0.721,P＜.05）。四、擺動腿角速度在躍跳緩衝與蹬伸階段與實跳距離達顯著相關意義，快速的擺動角速度將有利於成績表現。五、起跳腿與擺動腿夾角變化在跨跳階段蹬伸期與階段及實跳距離均達顯著相關，顯示在跨跳蹬伸期二腿較大擺動幅度將可提昇成績表現。建議加強訓練擺臂與擺動腿技術，增加著地腳後蹬力量，減少身體前旋的作用。

The purpose of this study is to analyze the influence of motion of swinging arms and fee legs on the performance. The study adopted cameras with a speed of 60 frames per second (Canon ZR-60) to film the finalists in the woman’s long jump and triple jump at the 2003 National Games. The two-dimensional film analysis based on a 14-segment and 21-point body model was conducted. The data collected was computed. According to the results, the conclusions are as follows: 1. First at the three support phases, the angle of the upper limb arm did not significantly correlate with the horizontal and vertical speeds. 2. The angular momentum of the free leg and upper arm are negatively correlated with the actual jump distance. 3. The angles of the free leg in the step-phase and hop-phase are significantly correlated with the actual jump distance. In other words, a larger angle can produce a better result. 4. The speed of free legs during jump buffer and pressing phase is significantly correlated with actual distance. High speed of the free legs results in good performance. 5. The changes of intersection angle of takeoff legs and free legs during step phase are correlated with actual distance. It means that the two legs during step phase demonstrate bigger motions which will bring about better performance. It is suggested to enhance the drills of arm-swing techniques and training of free legs in order to increase the strength of leg drive and hence reduce the torque (pronation) of the body part.