田径短跑中电子起跑监测系统测量方法有效性的研究
  修订日期:2012-11-25  点此下载全文
引用本文:谢洪昌,罗江南.田径短跑中电子起跑监测系统测量方法有效性的研究[J].广州体育学院学报,2013,(1):75-79
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作者单位
谢洪昌,罗江南 (湛江师范学院体育科学学院,广东 湛江524048) 
中文摘要:研究采用统计分析法,以第16届亚运会短跑项目354名男、女运动员的起跑后蹬的时间-压力曲线为研究对象,将起跑反应时分成实际反应时和反应动作时进行研究分析。结果表明: 反应动作时存在着显著的个体差异,其个体差异明显大于起跑反应时和实际反应时,对反应时的测量结果有着显著的影响;反应动作时与实际反应时无相关性,反应速度和动作速度测量互相不能替代;起跑反应时无法反映出运动员真正的起跑反应时间以及运动员反应时间的差异;使用固定的压力阈值来测量运动员的反应时间,没有考虑运动员的个体差异,违背了国际田径规则中的公平原则;应以实际反应时作为运动员的起跑反应时的测量值,以确保竞赛的公平性。
中文关键词:测量方法  有效性  起跑反应时  实际反应时  反应动作时
 
Research on the Effectiveness of Measuring Method of the Electronic Monitoring System
Abstract:The pre-start back step time and the structure of pressure curve of 354 male and female sprinters in the 16th Asian Games have been studied by using statistical analysis method to analyze the practical time for reaction and reaction time of movement separately. The result shows that the latter varies from person to person, and the difference for each individual is much more than the start reaction time and practical time for reaction, which has a significant influence on the measuring of reaction time. There is no definite relationship between the reaction time of movement and practical time for reaction. The measuring of reaction speed and action speed can not substitute each other. The start reaction time cannot reflect the difference between the real start reaction time and reaction time of each player. If the latter is measured with a fixed pressure threshold, the individual difference of each player cannot be considered. That is totally in conflict with the principle of fairness of the rules of IAAF. Thus, the players’ practical time for start should be measured as their start reaction time to guarantee the fairness of competition.
keywords:measuring method  effectiveness  start reaction time  practical time for reaction  reaction time of movement
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