| 男子l500m跑时身体各环节输出功的初步研究 |
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| 引用本文： | 林明芳.男子l500m跑时身体各环节输出功的初步研究[J].体育科学,1998(6). |
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| 作者姓名： | 林明芳 |
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| 作者单位： | 国家体育总局科研所 北京 |
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| 摘 要： | 运动高速摄影和跑台气体代谢法对男子中长跑运动员进行了研究。通过测定运动员1500m跑步过程中身体各环节输出功,发现运动员身体各环节输出功的比例关系为;摆动腿占比例最大,其次是支撑腿,上肢和躯干的输出功的比例相当,头部所占比例很小。运动员跑步过程中,环节内和环节之间存在能量转换,且环节之间能量转换是主要的。
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| 关 键 词： | 环节 输出功 生理能耗 能量转换 男子1500m |
Preliminary Study of the Mechanical Output Work of Body Segments during Men's 1500m Running |
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| Lin Mingfang.Preliminary Study of the Mechanical Output Work of Body Segments during Men's 1500m Running[J].China Sport Science,1998(6). |
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| Authors: | Lin Mingfang |
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| Abstract: | The rational energy allocation, energy transfer and the effective use of physiological energy of body segments during exercise were studied. Four distance runners served as objects were analyzed from films taken during a simulated test and their physiological energy costs were estimated based on oxygen consumption (VO2). The result has disposed the proportion of the mechanical output work of different body segments during 1500m running and indicated that the work of the swinging leg was the highest (34. 57% ), followed by that of the supporting leg (28. 08%). The percentage of the upper limbs'work was e-qual to that of the trunk (about 17% respectively), and the output work of the head was only the lowest (2. 37%). Energy transfer took place both within and between segments during running and energy transferred between segments was the major part. |
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| Keywords: | energy expenditure energy metabolism energy transfer biomechanics running middle distance running man 1500 m |
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