中国组织工程研究Issue(11)：2032-2039,8.DOI:10.3969/j.issn.2095-4344.2013.11.020
能量平衡模型结合运动生物力学手段测试人体运动做功效率*☆
Work efficiency during movement:Detection using energy and biomechanical methods
摘要
Abstract
BACKGROUND: So far, the testing methodologies of the work efficiency are not perfect, though international scholars have actively explored the energy methods for running efficiency early. OBJECTIVE: To investigate the work efficiency of 400-meter running. METHODS: Twelve male subjects (the first or second rank sprinter) volunteered to participate in this study, and they had no muscle damage, fractures and diseases of the circulatory and respiratory systems in the past 1 year. We recorded synchronously the related parameters using the high speed PULNIX CCD (TM6710) system, the portable CORTEX, Meta Max 3B and the self-made timepiece of measuring time in the level track. Energy expenditure was col ected by the MetaMax 3B system. We calculated the work efficiency of 400-meter running using mathematics modeling and the statistical methods based on theoretical analyzing and col ected datum-physiological and kinematic parameters. RESULTS AND CONCLUSION: We obtained average velocity in the X axis [(7.00±0.23) m/s] and average displacement data in the Y axis [(10.0±1.70) cm] at the centre of the body mass. The time of movement was (57.20±1.84) seconds. The net energy consumption, the heat energy, the drag energy, the potential energy, the kinetic energy and the work efficiency were (301.2±29.3) kJ, (197.0±30.3) kJ, (5.3±0.6) kJ, (3.7±0.7) kJ, (95.2±10.9) kJ, (35.0±4.3)%, respectively. In the average speed of (7.00±0.23) m/s, it was concluded that the average work efficiency (external work efficiency) was 35% during 400-meter running in the level track. It is a viable method that combines the energy balance theory model with the means of biomechanics to measure the work efficiency of human body during exercise.关键词
组织构建/组织构建与生物力学/运动医学/400 m 跑/做功效率/能量法/数学模型/能耗/速度/其他基金Key words
tissue construction/tissue construction and biomechanics/sports medicine/400-meter running/work efficiency/energy method/mathematics modeling/energy consumption/velocity/other grants-supported paper分类
医药卫生引用本文复制引用
孙明运,孙泊,章翔,李海鹏..能量平衡模型结合运动生物力学手段测试人体运动做功效率*☆[J].中国组织工程研究,2013,(11):2032-2039,8.基金项目
上海体育学院2011年研究生创新科研培育项目(yjscx201109)。Supported by：the 2011 Graduate Innovative Research Program of Shanghai University of Sport, No. yjscx201109* （yjscx201109）
