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題名 | 三級跳遠選手助跑與支撐階段能量變化之分析=The Energy Variety Analysis between Approaching and Support Phase in Triple Jumpers |
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作者姓名(中文) | 游正忠; | 書刊名 | 高苑學報 |
卷期 | 13 2007.07[民96.07] |
頁次 | 頁459-474 |
分類號 | 528.9426 |
關鍵詞 | 三級跳遠; 支撐階段; 機械能量; Triple jump; Support phase; Mechanical energy; |
語文 | 中文(Chinese) |
中文摘要 | 目的:主要探討三級跳遠選手助跑與支撐階段能量變化對成績表現之影響。方法:以五部每秒60張畫面的攝影機(Canon ZR-60),拍攝九十二年全國運動會男女三級跳遠決賽各八位選手為受試者,以Dempster(1955)建立14個肢段、21個關節點的人體模型,透過Kwon3D動作分析器實施二度空間的影片分析。結果與結論:一、助跑最後十公尺平均速度男子9.91±0.28公尺/秒,女子7.83±0.16公尺/秒,與成績相關僅男子在6-10公尺達顯著相關意義(r=.915, p<.05)。二、起跳水平速度男子三個階段與成績均達顯著相關(r=.850, r=.855, r=.835, p<.05),而垂直速度男女均呈中、低、高的形式。三、男女三個階段重心高度均以跨跳階段重心最高、騰跳著地重心最低。四、男子能量損失達30.2%、女子9.9%,男子由於起跳技術不佳,導致能量損失較大。建議:加強助跑速度的獲得提高最初動能,減少支撐階段能量損失,提高成績表現。 |
英文摘要 | Purpose:The purpose of this study was toinvestigate the influence and performance in the energy change between approaching and support phase in triple jumpers. Method:The method in this study was to use five cameras with the speed of 60 frames per second (Canon ZR-60) to film the male and female finalists who were competed in the 2003 National Games. The two-dimensional film analysis based on a 14-segment and 21-point body model was conducted by Dempster(1955). Result s and Conclusions: 1. The male approaching average speed in last 10 meters was 9.91±0.28 m/s and the female was 7.83±0.16 m/s in which just only the 6-10 meters in male gets the significant relatives (r=.915, P<.05). 2. The take-off speed of male jumpers in 3 phases was reached to significant relatives(r=.850, r=.855, r=.835, P<.05), and the vertical speed in male and female jumpers all presented the style of middle, low and high. 3.The 3 phases of CG height in male and female jumpers showed that the CG of step jump was highest and the hop jump in landing was lowest. 4. The energy losing of male jumpers was reached to 30.2% and the female jumpers was 9.9% it might be due to the bad take-off skills of male jumpers. Suggest:It suggested that strengthen the approaching speed to gain the first energy and reduce the energy losing in support phase to promote performance. |
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