跑步经济性重测信度研究

A study of the retest reliability of running economy

为了探索在同一天(上午和下午)跑步经济性(RE)的重测信度,选择12名定向越野和中长跑项目学生运动员作为受试对象,其中女生5名,男生7名,RE测试时间为同一天的上午09:00和下午14:30,室内气温20℃,湿度45%,结果发现,上午RE的值为(32.62±2.90)mL/(kg.min),略低于下午RE的值(32.94±3.05)mL/(kg.min),上下午RE测试结果的组内相关系数为0.928,说明RE重测信度极好。结果表明,同一天的上午和下午RE测量结果比较稳定,重测信度可靠性极高。

In order to probe into the retest reliability of running economy(RE) measured on the same day(in the morning and afternoon),the authors selected 12 student orienteers and middle and long distance runners(5 girl students and 7 boy students) as testees;the RE test times were 09:00 in the morning and 14:30 in the afternoon on the same day;the indoor air temperature was 20oC,the humidity was 45%.The authors revealed the following findings: the RE value measured in the morning was(32.62±2.90) mL/(kg.min),slightly lower than the RE value measured in the afternoon((32.94±3.05) mL/(kg.min));the interclass correlation coefficient of RE test results measured in the morning and afternoon was 0.928,which means that the RE retest liability is excellent.The findings indicate that RE test results measured in the morning and afternoon on the same day are stable,and that the retest reliability is extremely high.