Rheault W, Beal J L, Kubik K R, Nowak T A, Shepley J A
University of Health Sciences/The Chicago Medical School, IL 60064.
Arch Phys Med Rehabil. 1989 Dec;70(13):907-10.
This study was conducted to determine the intertester reliability of a hand-held dynamometer for the wrist flexor and extensor muscles. Using the break test on 20 healthy subjects, three testers obtained two measures of strength for each muscle group. The data were analyzed using the Pearson product-moment correlation coefficients, intraclass correlations, and an analysis of variance (ANOVA) for repeated measures. Our Pearson product-moment correlations ranged from 0.89 to 0.95 for the intertester reliability of the wrist extensors and 0.90 to 0.93 for the wrist flexors, whereas the intraclass coefficients were 0.91 and 0.85, respectively. Although these correlations were high, ANOVA tests revealed that significant differences existed between testers for both the wrist flexion and extension data (p less than .05). From these results we concluded that although the correlations between testers were good, ANOVA tests suggested that there was limited reliability between testers.
本研究旨在确定手持测力计测量腕屈肌和伸肌时测试者之间的可靠性。对20名健康受试者进行破坏试验，三名测试者对每个肌肉群进行两次力量测量。使用Pearson积差相关系数、组内相关系数以及重复测量方差分析（ANOVA）对数据进行分析。腕伸肌测试者间可靠性的Pearson积差相关系数在0.89至0.95之间，腕屈肌的相关系数在0.90至0.93之间，而组内系数分别为0.91和0.85。尽管这些相关性很高，但方差分析测试显示，腕屈和伸数据在测试者之间存在显著差异（p小于0.05）。从这些结果我们得出结论，尽管测试者之间的相关性良好，但方差分析测试表明测试者之间的可靠性有限。
