Kim J-Young, Keun Hwang Seung, Tai Lee Kyung, Won Young Ki, Seon Jung Ju
DMF & Wound Healing Part, Foot & Ankle Clinic, Orthopedic Surgery, Eulji Medical Center, Nowon-Gu, Seoul, 139-711, South Korea.
Foot Ankle Int. 2008 Feb;29(2):213-8. doi: 10.3113/FAI.2008.0213.
Since some devices can be cumbersome to use, we evaluated the validity and reliability of a specially designed device for easily checking the mobility of the first ray of the foot.
To analyze the validity of the device, the dorsal mobility of the first ray of the foot was measured with the modified Coleman block test developed by Fritz et al., the Klaue device, and the custom device. Two-tailed Student's paired t-test and Pearson correlation were used to compare the values of the two tests. For evaluation of inter- and intra observer reliability of the EMC device, 3 independent observers measured the dorsal mobility of the first ray of the foot twice. The results were analyzed with two-tailed Student's paired t-test and ANOVA to evaluate intraobserver and interobserver reliability, respectively.
For both the first and second examinations of reliability, the difference between the two values was significant (p < 0.05) for the Coleman block test but not significant (p = 0.118) in comparison with the Klaue device. The measurements from both examinations showed good correlation (Pearson correlation coefficient: comparison with the Coleman block test = 0.84 (p < 0.05), with the Klaue device = 0.92 (p < 0.05)). The paired t-test for intraobserver validity showed no statistically significant difference among observers (p = 0.52, 0.58, 0.96, Pearson correlation coefficient = 0.76, 0.79, 0.80), and ANOVA testing for interobserver reliability showed no significant difference either (p = 0.96, Pearson correlation coefficients = 0.83, 0.84, and 0.86, respectively).
This study demonstrated that the EMC device is both reliable and valid for measuring the mobility of the first ray of the foot.
由于一些设备使用起来可能很麻烦，我们评估了一种专门设计的用于轻松检查足部第一跖列活动度的设备的有效性和可靠性。
为分析该设备的有效性，采用Fritz等人开发的改良科尔曼阻滞试验、克劳厄设备和定制设备测量足部第一跖列的背侧活动度。使用双尾学生配对t检验和皮尔逊相关性分析来比较两种测试的值。为评估EMC设备观察者间和观察者内的可靠性，3名独立观察者对足部第一跖列的背侧活动度进行了两次测量。分别使用双尾学生配对t检验和方差分析来评估观察者内和观察者间的可靠性。
在可靠性的首次和第二次检查中，与克劳厄设备相比，科尔曼阻滞试验的两个值之间差异显著（p < 0.05），但与克劳厄设备相比差异不显著（p = 0.118）。两次检查的测量结果显示出良好的相关性（皮尔逊相关系数：与科尔曼阻滞试验比较 = 0.84（p < 0.05），与克劳厄设备比较 = 0.92（p < 0.05））。观察者内有效性的配对t检验在观察者之间未显示出统计学上的显著差异（p = 0.52、0.58、0.96，皮尔逊相关系数 = 0.76、0.79、0.80），观察者间可靠性的方差分析也未显示出显著差异（p = 0.96，皮尔逊相关系数分别为0.83、0.84和0.86）。
本研究表明，EMC设备在测量足部第一跖列活动度方面既可靠又有效。
