摘要
本文选取赛程相差较小的瑞典Halvvasan滑雪、美国纽约马拉松跑步和德国Hamburg自行车赛为研究对象,实证统计分析不同运动的参赛者速度分布特性及其机制影响,发现滑雪和跑步运动速度分布基本为右偏态分布,自行车运动速度分布为左偏态分布.具体计算这三种运动2009–2016年期间每年的速度分布偏度值,进一步探索其与摄氧量和单位路程能耗的关联,得出结论:滑雪、跑步和自行车赛参赛者全程速度分布的偏度与其单位路程能耗存在很强的关联性,三种运动速度分布特性差异的产生机制主要是其单位路程能耗的不同.
Three typical athletic contests with relatively short distances are selected as the object of study in this paper such as Halvvasan ski race (Sweden), New York city marathon running (USA) and Hamburg cycling race (Germany). The characteristics and mechanisms of the velocity distributions of those athletic contests are studied based on empirical analyses. It is found that the velocity distributions of skiing and running are basically right-skewed, while the velocity distribution of cycling race is left-skewed. The skewness values of the velocity distributions of the three contests during the 2009-2016 period are calculated, and the correlation between the skewness of the velocity distribution and the oxygen uptake and the correlation between the skewness of the velocity distribution and the energy expenditure per kilometer are further explored. The conclusion is reached that the skewness of the velocity distributions of skiing, running and cycling races has strong correlation with their energy expenditure per kilometer. The difference in skewness characters of the velocity distributions of three races lies chiefly in the difference of the energy expenditure per kilometer.
作者
胡金洁
林振权
HU Jinjie;LIN Zhenquan(College of Mathematics,Physics and Electronic Information Engineering,Wenzhou University,Wenzhou,China 325035)
出处
《温州大学学报（自然科学版）》
2019年第2期29-37,共9页
Journal of Wenzhou University(Natural Science Edition)
关键词
比赛速度分布
偏度
摄氧量
单位路程能耗
Velocity Distributions in Athletic Contests
Skewness
Oxygen Uptake
Energy Expenditure per Kilometer
