王志明

摘要：为了探索RE隔日测量结果的可靠性，采用配对t检验、Pearson相关系数、组内相关系数(intra-class correlation coefficients，ICC)以及Bland-Altman法进行验证。选择12名定向越野和中长跑项目学生运动员作为研究对象，其中女生5名，年龄(20.501.00)岁，身高(163.014.27) cm、体重(52.963.28) kg；男生7名，年龄(20.250.71)岁，身高(173.644.64) cm，体重(66.574.60) kg。隔日测量RE，测试时间和测量顺序均一致，室内气温20 ℃，湿度45%，结果发现，RE隔日测量结果配对t检验差异没有显著性，相关性呈高度相关；组内相关系数ICC结果较高，Bland-Altman图形中2次RE测量结果差值的分布服从正态分布，所有的差值数据均在95%的一致性界限以内。结果表明，RE隔日测量可靠性比较高，但是，影响RE的因素非常复杂，在实际测量的过程中，要始终保证受试者在前后测量身体处于非疲劳状态，测试前两天保证受试者进行30 min以上的熟悉跑台跑步，前后两次测试顺序和测试时间尽量保持一致。

关键词：运动生理学；跑步经济性；重测信度

中图分类号：G804.7文献标志码：A文章编号：1006-7116(2014)04-0125-05

Evaluating the reliability of every other day running economy measurement quantitatively by using different methods

WANG Zhi-ming

（Department of Track and Field，Guangzhou Sport University，Guangzhou 510500，China)

Abstract: In order to probe into the reliability of the results of every other day running economy (RE) measurement, the author verified the results by using paired t-test, Pearson correlation coefficient, intra-class correlation coefficient (ICC) and Bland-Altman method. The author selected 12 student orienteers and middle and long distance runners as his research subjects, including 5 female students at an age of 20.501.00, with a height of 163.014.27cm and a weight of 52.963.28kg, 7 male students at an age of 20.250.71, with a height of 173.644.64cm and a weight of 66.574.60kg, measured RE at a room temperature of 20oC and a relative humidity of 45% and under the condition of consistent measurement time and order every other day, and revealed the following findings: the results of every other day RE measurement verified by using paired t-test had no significant difference, showing a high correlation; the results verified by using ICC were relatively high, the distribution of the differences between the 2-time RE measurement results shown in the Bland-Altman diagram presented a normal distribution, all the difference data were within the 95% consistency limit. The said findings indicate the followings: the reliability of every other day RE measurement is high; although it was found by the author that the reliability of every other day RE measurement is high, RE affecting factors are very complicated; during actual measurement, the researcher should always make sure that the testees are in a non fatigue condition physically during the two successive times of measurement, let the testees have an over 30-minute treadmill familiarizing run two days before measurement, and keep the order and time of the two successive times of measurement as consistent as possible.

Key words: sports physiology；running economy；retest reliability

所谓跑步经济性(Running Economy，RE)是指在次极限负荷的特定速度下跑步，摄氧量达到稳定状态时每单位体重的摄氧量[1-4]。采用摄氧量单位表达RE在不考虑底物代谢对能量消耗的影响时[5]，RE的测试强度要尽可能使受试者处于有氧运动。RE是人体功能内稳态对运动应激的一种反应[6]，研究认为，内稳态是由生物系统的各种调节机制调控而维持的一种动态平衡，是生物系统从进化适应中获得的维持整个生物系统生存的基本条件[7]。通过RE评价运动员的有氧代谢能力已经比较常见[8-9]。所谓RE测量可靠性，是指在相同的测量条件下，对同一批受试者使用相同的测量方法，重复测量结果的一致性程度，本研究所关注的RE测量可靠性是隔日测量RE结果的一致性。……