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題 名 | 拔河靜態姿勢下肢伸展肌群蹬力之彈性特徵探討=The Survey of Elastic Modeling for the Extension Force of the Lower Extremity during the Static Position of Tug-of-War |
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作 者 | 涂瑞洪; 王金成; 蔡三雄; | 書刊名 | 體育研究 |
卷 期 | 3 1997.04[民86.04] |
頁 次 | 頁137-150 |
分類號 | 528.9013 |
關鍵詞 | 技河; 彈性模式; 運動生物力學; Tug-of-war; Elastic model; Biomechanics; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究之主要目的在於探討靜態拔河姿勢下,不同的身體重心至腳支點長度及角 度,下肢伸展肌群的彈性特徵。本研究假定人體為一彈簧,彈簧長度為身體重心至腳支點的 長度,彈簧恢復力為下肢肌群作用於測力板上之蹬力。研究對象為國家級拔河選手一人。使 用 Peak 動作分析系統,獲取受試者於測力板上不同靜態拔河姿勢之身體重心位置座標,以 計算出重心至腳支點長度及角度,並經由 Kistler 測力板獲得下肢肌群蹬力。 透過同定步 定位儀使運動學及動力學資料同步。經由實驗數據的取得、資料之處理以及分析討論後,發 現於不同拔河姿勢中彈性係數與重心長度變化量(△ L )具有一函數關係。 彈性模式可表 為:F=f (△ L )△ L,其中 f (△ L )為彈性係數函數; F 為下肢肌群作用於測力板 之蹬力。於固定重心長度情況下彈性係數與重心角度變化量亦具有一函數關係,彈性模式可 表為:F=g (�魽^△ L 其中 g (�魽^為彈性係數函數;(�魽^為重心角度。綜合上述之發 現本研究獲得以下結論:拔河下肢伸展肌群之彈性特徵,不是一種彈性係數為�琠w常數之彈 性模式,而是一種彈性係數與重心長度變化量及重心角度呈函數關係之彈性模式,彈性模式 可表為:F=k (△ L,�魽^△ L。 |
英文摘要 | The investigation of elastic characteristics for the extension force of the Lower Extremity in the Static Position of Tug-of-war. The purpose of this study was to investigate the elastic characteristic of static tug-of-war position during different angles and lengths of COG. In this study, human body was assumed as a spring mass system, the spring changing-length was the distance between body COG and the foot support point,and the spring reaction force was the extension force of lower extermity of a body. The subject of this experiment was a elite tug-of -war player. Both of Peak mation analyzing system and Kistler force system were utilized to collect data synchronizely. After data treatment, the following results were reached: 1. there was a functional relation between spring constant and body COG changing length, and the elastic function of "F=g (�魽^△ L" could represent this relationship 2.there exit another functional relation between spring constant and the angle of COG which was defined by body COG, foot support point, and floor level, and the elastic function of "F=g (�魽^△ L" could represent this relationship Therefore the final conclusion was made that the elastic characteristic of lower extremity in tug-of-war was not a model of constant spring coefficient, and was a multiple relationship among the spring constant, COG length, and COG angle; it could use the model of "F=k (△ L, �魽^△ L" to represent the elastic relationship of static position of tug-of-war. |
本系統中英文摘要資訊取自各篇刊載內容。