Publication:

扯鈴基本動作學習的雙手協調

本研究主要目的在探討藉由扯鈴運鈴動作學習歷程，雙手動作的協調性、穩定性與動作型態的練習效應。實驗以7名未曾有扯鈴運動經驗的大專院校之體育運動員為實驗參加者，進行連續一週的扯鈴運鈴動作學習，並以VICON三度空間影像分析系統（攝影機：MX-F40）進行動作過程的資料收集，並以Nexus 1.6.1版軟體分析跳躍過程下肢各關節位移、速度、力量、力矩等運動學參數，研究的統計方法為重複量數單因子變異數分析與HSD法事後比較，顯著水準設定為.05，比較扯鈴運鈴上肢動作行為的差異。分析結果顯示，學習初期與學習後期雙手的協調性隨著練習而逐漸提升，其上肢動作的穩定性也隨著練習而提升。動作型態方面的改變，學習初期與學習後期的動作表現顯示腕關節動作角速度時間峰值差約為50ms，肘關節角速度則並無明顯差異，代表兩關節間的動作較為獨立，呈現出整個學習階段肢段動作從凍結自由度轉變為釋放自由度的特徵。本研究的結果說明，扯鈴運鈴動作練習過程中，雙手動作的協調性、穩定性與動作型態會隨著不同的學習階段產生轉變。

The purpose of this study was to investigate the practice effects of coordination, stability, and movement pattern in diabolo of basic movement during the learning process. Seven participants never have diabolo movement experience physical education students. To learning diabolo of basic movement for a week. The Vicon 3-D motion analysis system with 8 cameras (MX-F40, 200 Hz) were synchronized to acquire the kinematical data respectively. The Vicon Nexus 1.6.1 was used to calculate the kinematics parameters of high extremity that included displacement, velocity, moment, etc. Repeated measure one-way ANOVA and HSD post-hoc were adopted to analyze the statistical difference with an alpha level of .05. The movement pattern showed the timing difference was around 50ms between peak velocity of wrist. It appeared that two joints reached high speed in sequence and intersegment acted independent to release degree of freedom（DOF）. It indicated that the Bimanual Coordination, stability, and movement pattern during the diabolo of basic movement learning.