Division of Athletic Training, University of Northern Iowa, United States; School of Psychology and Exercise Science, Murdoch University, Australia.
Sports Performance Research Institute New Zealand (SPRINZ) at AUT Millennium, Faculty of Health and Environmental Science, Auckland University of Technology, New Zealand; School of Science and Technology, University of New England, Australia.
J Sci Med Sport. 2018 Oct;21(10):1004-1007. doi: 10.1016/j.jsams.2018.03.011. Epub 2018 Mar 28.
Sport-related concussion (SRC) research has focused on impaired oculomotor function. The King-Devick (K-D) test measures oculomotor performance and is reported to identify suboptimal brain function. The use of the K-D test in Australian football (AF), a sport involving body contact and tackling, has not been documented. Therefore, the objective of this study was to determine the test-retest reliability and diagnostic accuracy of the K-D test on a sub-elite AF team.
Prospective cohort study METHODS: In total, 22 male players (19.6+2.3 years) were tested and re-tested on the K-D test. Those suspected of having a SRC secondary to a significant head impact were tested. Randomly selected additional players without SRC were assessed for comparison.
There were observable learning effects between the first and second baseline testing (48 vs. 46s). The ICC for the first and second baseline tests was 0.91. Post-match test times were longer than the baseline times for players with SRC (n=7) (-1.9s; z=-5.08; p<0.0001). Players tested with no signs of SRC (n=13) had an improvement in time when compared with their baseline score (3.0s; z=-4.38; p<0.0001). The overall sensitivity was 0.98, specificity 0.96, and a kappa of κ=0.94. The positive likelihood ratio was 11.6 and the positive predictive value was 89.0%.
This study supports the use of the K-D test due to its test-retest reliability, high sensitivity and specificity, and fast and simple use that is ideal for sports medicine professionals to make quick judgement on management and playability.
运动相关性脑震荡（SRC）的研究集中在眼球运动功能受损上。King-Devick（K-D）测试可测量眼球运动表现，并据报道可识别大脑功能不佳。然而，在涉及身体接触和擒抱的澳大利亚足球（AF）中，尚未记录 K-D 测试的使用情况。因此，本研究的目的是确定 K-D 测试在亚精英 AF 球队中的测试-再测试可靠性和诊断准确性。
前瞻性队列研究
共有 22 名男性运动员（19.6+2.3 岁）接受了 K-D 测试，并进行了重复测试。对疑似因明显头部撞击而导致 SRC 的运动员进行了测试。随机选择无 SRC 的其他运动员进行评估作为对照。
在第一次和第二次基线测试之间存在可观察到的学习效应（48 与 46 秒）。第一次和第二次基线测试的 ICC 为 0.91。与 SRC 相关的运动员（n=7）的赛后测试时间比基线时间长（-1.9s；z=-5.08；p<0.0001）。没有 SRC 迹象的运动员（n=13）与基线得分相比，测试时间有所提高（3.0s；z=-4.38；p<0.0001）。整体灵敏度为 0.98，特异性为 0.96，kappa 值为 0.94。阳性似然比为 11.6，阳性预测值为 89.0%。
由于具有测试-再测试可靠性、高灵敏度和特异性，以及快速简单的使用方法，非常适合运动医学专业人员快速判断管理和可操作性，因此本研究支持使用 K-D 测试。
