頁籤選單縮合
題 名 | 長跑選手跑步動作定量分析=Quantitative Analyses of Long Distance Running Motion |
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作 者 | 陳敦禮; | 書刊名 | 弘光學報 |
卷 期 | 38 2001.11[民90.11] |
頁 次 | 頁119-125 |
分類號 | 528.9463 |
關鍵詞 | 重心起伏; 上下振幅; 跑步效益; Vertical oscillation of center of body mass; Vertical oscillation; Running efficiency; |
語 文 | 中文(Chinese) |
中文摘要 | 本文主要以國內長跑女將蘇子寧與一位具有潛力而未經過訓練之同年齡女生為研 究對象,目的在於了解經過訓練的優秀長跑選手與一般未經訓練的女子在重心起伏、兩腿肌 力大小、肩膀上下振幅及跑步效益等方面,有何不同之處。經過研究分析後,發現蘇子寧之 右腳肌力比左腳大,以致右腳推蹬後,使重心上升較高(平均 9.56 cm ); 而左腳肌力較 小,左腳推蹬後,使重心上升之高度較低(平均 7.88 cm )。 另外,兩肩膀上下擺動之幅 度, 左肩比右肩大得多; 如在左腳支撐期時,左肩平均位移為 22.0 cm,右肩平均位移為 11.75 cm。 在比較跑步效益方面,蘇子寧較另一女生差; 蘇平均為 9.02 %,另一女生為 9.63 %。 而單位體重之運動耗氧量,蘇子寧較另一女生來得大;蘇為 47.8ml/kg,另一女 生為 44.7 ml/kg。我們推測,此可能與其動作不平穩而額外消耗能量有關。 因此,長跑選 手或一般人跑步時,應注意左右肩膀擺動幅度與左右腳肌力之均衡,以減低不必要之能量消 耗,使跑步效益與耐力增加。 |
英文摘要 | The purposes of this study were to investigate: Vertical oscillation of body mass, muscular strength of legs, vertical oscillation of schoulders and running efficiency. The subjects of this study were a female outstanding long distance runner, tzu-ning Su, and an untrained female runner. The results showed that the right leg's muscular strength of the outstanding runner was larger than the left one so that the center of body mass went up to higher height after the right foot pushed off (average of height was 9.56cm). Her left leg's muscular strength was smaller than the right one so that the center of body mass went up to the lower height after the left foot pushed off (average of height was 7.88cm). Besides, shoulders' vertical oscillation, right shoulder (22.0cm) was much larger than left shoulder (11.75cm). In running efficiency, the outstanding runner was worse than the untrained runner (Su was 9.02%, the untrained runner was 9.63%). The outstanding runner had much more oxygen expenditure (47.8%) than that of the untrained runner (44.7%) based on the body weight. Those possibly resulted from the unbalanced running motion. So the runners ought to emphasize the balance of shoulders' oscillation and legs' muscular strength to reduce the expenditure of energy and enhance the efficiency and endurance of running. |
本系統中英文摘要資訊取自各篇刊載內容。