雙槓Bhavsar動作運動學之個案研究-以高裕宸選手為例
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2010
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目的：本旨在Bhavsar動作的運動技術特徵及運動學參數之差異。方法：本研究以一部Redlake攝影機(頻率250Hz，快門為1/500sec)拍攝一名台灣師大選手所實施之Bhavsar動作的2D影像，並進行影像數位化及運動學分析，以了解影響完成Bhavsar動作之重要因素，以作為教練與選手進行訓練時的參考依據。結果：一、受試者在實施Bhavsar時，最高分動作在壓肩留腳位置之重心下壓、頂肩踩腳位置肩角伸展速度及重心最高點位置踝關節水平速度和重心水平速度較最低分動作快。二、成功組與失敗組動作僅在重心最高點位置時，踝關節水平速度達顯著差異，其餘參數皆未達顯著差異。結論：在壓肩留腳位置強調重心下壓，藉以儲藏肌肉中的彈性位能，並且在脫放手位置肩關節迅速拉開向上，同時踝關節反制向下踩地，形成與原本方向相反的翻轉，並順勢的進行快速擺越為此動作成功的重要關鍵及練習重點。
Purpose: The purpose of this study is to compare the difference with the technical feature and the kinematics parameter. Method: A Redlake cameras (frequency of 250Hz, the shutter is 1/500sec) take a player by the implementation of the National Taiwan Normal University Bhavsar action of 2D images, and make digital imaging and motion analysis, to understand the impact of the completion of Bhavsar action important factor, as coaches and players during a training reference. Result: 1. Subjects in the implementation of Bhavsar, the highest score move center of gravity vertical speed of in the second position, and shoulder angle extension rate in the fourth position, and ankle joint level speed and center of gravity level speed in the sixth position fast then the lowest score move. 2. Successful group and defeat group movement when center of gravity peak position, the ankle joint level speed reaches the significant difference, other parameters were no significant differences. Conclusion: In second position stress press center of gravity position down to stored the elastic potential energy in muscle, in fifth position, shoulder quickly pulled up, and ankle while stepping down to opposite the direction and overturned of the original formation, the more quick swing the key to success for this action.
Purpose: The purpose of this study is to compare the difference with the technical feature and the kinematics parameter. Method: A Redlake cameras (frequency of 250Hz, the shutter is 1/500sec) take a player by the implementation of the National Taiwan Normal University Bhavsar action of 2D images, and make digital imaging and motion analysis, to understand the impact of the completion of Bhavsar action important factor, as coaches and players during a training reference. Result: 1. Subjects in the implementation of Bhavsar, the highest score move center of gravity vertical speed of in the second position, and shoulder angle extension rate in the fourth position, and ankle joint level speed and center of gravity level speed in the sixth position fast then the lowest score move. 2. Successful group and defeat group movement when center of gravity peak position, the ankle joint level speed reaches the significant difference, other parameters were no significant differences. Conclusion: In second position stress press center of gravity position down to stored the elastic potential energy in muscle, in fifth position, shoulder quickly pulled up, and ankle while stepping down to opposite the direction and overturned of the original formation, the more quick swing the key to success for this action.
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雙槓, Parallel bars, Tippelt, Bhavsar