Publication: 跳遠助跑階段的知覺行動縱貫研究(I)
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跑走動作屬於基本的移動性動作技能,其動作的型態由於下肢週期性地經 歷著地與離地階段,而有人體重心動作水平速度曲線的週期性減速與加速 變化過程。本研究的主要目的係以跑走動作的生物力學特徵為理論基礎, 探討高頻雷射距離測量系統收集連續性跑走動作量化分析的運動學參數, 並通過動態的GM(1, 1)灰色模型處理實地運動競賽的遺漏數值。研究以 雷射距離測量系統(LDM module 300C,100Hz)與AcqKnowledge 3.7.2 版 訊號分析統記錄與分析全國運動會或大運會等男子跳遠之運動學參數計 算,在步長與步頻計算方面,研究也將使用二度空間影片分析的方法進行 最後2 步至起跳階段的參數確認。本研究計畫已收集2004 年大專運動會、 2005 年大專運動會與2006 年大專運動會的相關資料,並預計追蹤優秀跳遠 運動員在未來三年的跳遠動作表現,並進行助跑動作過程的分析。研究結 果方面,從高頻雷射距離測量系統獲得的運動學參數,可以間接推算助跑 階段的步頻與步長特性,並立即回饋給運動教練員與運動員關於助跑過程 的質化或量化訊息。然而,跳遠運動的起跳階段由於動作的目的明顯改變, 動作行為特徵相較於單純助跑階段則有相當大的變異,而影響運動學曲線 對於關鍵時相的判定。
The purpose of this study is to develop the quantitative methodology of kinematical parameters for the continuous walking and running that raw data be acquired with a high frequency laser distance measurement system. This study is also to explore the practice of interpolation of missing value during field test of the game in the integrated past researches about laser distance measurement system and in the dynamical grey model of GM(1, 1). A laser distance measurement system (LDM module 300C, 100Hz) and AcqKnowledge version 3.7.2 are used to record and to analyze the men long jump in the College Games or National Games of Taiwan respectively. In order to confirm the parameters of stride length and stride rate, the method of two dimensional motion analyses is used to record and digitize the last two steps until takeoff in this study. In past work, the researcher had recorded the College Games in 2004 to 2006, and this study still need follow-up the performance of the elite long jump athletes for further three years.