Publication:

優秀跳高運動員的運動科學服務：運動學的技術診斷

本研究的主要目的乃就運動學的研究手段，對臺灣優秀女子跳高運動員吳孟珈曲線助跑階段末期至起跳動作進行分析，並提供教練員與運動員作為訓練的參考。研究服務的對象身高1.71m、體重56kg，在2009年全中運（比賽成績1.70m）前的訓練階段與2009年全國運動會跳高比賽（比賽成績1.74m）進行運動學動作影像收集，動作記錄與分析的工具分別為Sony HDR-FX7高解析度數位攝影機（60Hz）與Vicon Motus 9.2.0版三度空間影像分析系統。重心路徑方向的計算結果顯示吳孟珈曲線助跑最後第二步的著地位置，在二次測試均出現偏離曲線助跑路徑外側，且起跳階段的重心最低高度都略顯較高（約為身高的55-57%），全中運前的運動學特徵為加速起跳形式，而全國運動會則為減少最後一步步長的減速起跳形式，以致全國運動會離地角度增加；臺灣的優秀女子跳高運動員也都有偏離曲線助跑路徑外側的直線助跑現象，而出現最後一步的重心路徑方向角高於最後第二步。2009年11月的第三屆亞洲室內運動中，吳孟珈以1.80m的成績獲得第六名，顯示仍需要更多運動科學服務的介入，祈以協助運動員未來奪取更佳成績。

The purpose of this study is to analysis the curved approach and the takeoff techniques of high jump for Meng-Chia Wu, the best female athlete of high jump in Taiwan, to provide the kinematical information to athlete and athletic coach. The body height and weight of Wu is 1.71m and 56kg respectively. The high jump movements of the training phase before 2009 Taiwan National High School Games (1.70m in Games) and 2009 Taiwan National Games (1.74m in Games) were acquired and digitized by digital HD video camera recorders (Sony HDR-FX7, 60Hz) and Vicon Motus v9.2.0 three-dimensional cinematography system. The results of direction of the path of the centre of mass (COM) at the last two steps showed the landing position of the right foot in the penultimate stride was always out of the run-up path of curve and the lowest height of COM (55-57% of body height) was somewhat high during takeoff phase in two assessments of Wu’s high jump. The kinematical characteristics of Wu was increase velocity to takeoff at the training phase before 2009 Taiwan National High School Games, but it was reduced the last stride length to slow down and to increase the angle of takeoff at the 2009 Taiwan National Games. The direction of the path of the COM at the end of the takeoff phase was higher than the penultimate stride in Taiwan elite female high jump athletes. It can be regarded as straight path to run-up at the last two steps. At the third Asian Indoor Games (November, 2009), Wu got the sixth place for a jump of 1.80m. It indicated that the more intervention of sports scientific services is necessary in order for the elite athlete to gain the best performance in the future.