本研究目的在分析女子撐竿跳高選手助跑倒數六步到起跳離地瞬間的動作，探討持竿助跑與降竿技術對起跳點位置之影響。以98年年度女子排名前十傑中的6名選手為研究對象，利用二部數位攝影機拍攝受試者助跑過程中助跑倒數六步的動作，使用動作分析系統對影片進行數位化處理，獲得相關運動學參數。研究結果發現受試者在助跑倒數六步的助跑速度、步長與步頻變化都呈現不穩定，倒數第一步的步頻是六步當中最快的，平均為4.81±0.21步/秒，但助跑速度則是最慢的平均為5.70±0.36公尺/秒。在倒數第三步時，受試者持竿角度已接近0度，但身體軀幹開始向後傾斜並維持至倒數第一步，達到最大身體軀幹角度為107.42±8.47度；在起跳離地瞬間，受試者都未能踩在理想的起跳點位置上。研究總結，受試者在倒數六步的助跑速度表現不穩定，加上降竿過程身體軀幹向後傾斜，進而影響起跳時的起跳點位置。

　　The purpose of this study was to analyze female pole vaulters’ techniques starting from the last six strides of their run-up to take-off stride. The key point was to discuss how much pole drop techniques affected the position of the take-off point. Top six pole vaulters in 2009 ranked by Chinese Taipei Athletic Federation were selected as the subjects for the analysis. The last six strides of their run-up to take-off stride was filmed by two video cameras. Images were digitalized by motion analysis system and the kinematics parameters were obtained. The results found that the experiment revealed that the subjects’ run-up speed, length, and the changes of the frequency are unstable in the last six stride of the run-up; the last stride was the fastest, which the average speed was 4.81±0.21 stride/second, comparing with the others. However, the average speed of the run-up was the slowest, which the average was 5.70±0.36meter/second. In the last third strides, the pole carry angle was almost reaching the horizontal position. At the same time, the upper trunks of vaulters started to lean backward till the last stride, reaching the maximum trunk angle in 107.42±8.47 degree. In the moment of the take-off, all the subjects couldn’t reach the ideal take –off point. In summary, the subjects’ run-up speed were unstable in the last six strides, and during the pole drop, leaning back trunk, will affect the position of the take-off point.