School of Sport, Health and applied Science, St Mary's University, Twickenham, Middlesex, United Kingdom.
School of Sport, Health and applied Science, St Mary's University, Twickenham, Middlesex, United Kingdom.
J Neurol Sci. 2018 May 15;388:40-46. doi: 10.1016/j.jns.2018.02.046. Epub 2018 Mar 2.
To assess the frequency of reported head injuries in youth community Rugby Union and determine whether the King-Devick (K-D) test could be used by parents as a means to chart cognitive recovery following head injury.
A prospective cohort study of 489 junior players (U9-U18) conducted at a community level Rugby Union club over four seasons. All players undertook a baseline K-D test at the start of each season. Players identified with suspected concussion performed the K-D test post injury and results were compared to their most recent baseline assessment. Parent/Guardians of the player then oversaw repeated daily testing until baseline scores were surpassed.
49 players were sent for assessment after suspected head injury. 46 parents oversaw daily repeated K-D testing (93.8% engagement). The median reduction in K-D test performance speed post-injury from baseline was 7.32 s (IQR 2.46 - 7.98). A median of 5.1 days/tests were taken for players to surpass baseline performance. No correlation was found between initial post-injury test and cognitive recovery time. 38 head injuries were reported from match play with an incidence rate of 12.7 per 1000 match hours (95% CI 9.2-17.5).
The K-D test is a practical tool for baseline, post injury and parentally supervised repeated testing within youth community Rugby Union. Incidence of reported head injuries following match play is higher than previously reported. Parental engagement was high. Post-Injury K-D test performance should not be used as a means to predict symptom recovery.
评估青少年社区橄榄球联盟中报告的头部受伤频率，并确定家长是否可以使用 King-Devick（K-D）测试来监测头部受伤后的认知恢复情况。
在一个社区级别的橄榄球联盟俱乐部中，对 489 名青少年球员（U9-U18）进行了前瞻性队列研究，共进行了四个赛季。所有球员在每个赛季开始时都进行了基线 K-D 测试。有疑似脑震荡的球员在受伤后进行 K-D 测试，将结果与最近的基线评估进行比较。然后，球员的父母/监护人监督他们进行日常重复测试，直到达到基线分数。
49 名球员因疑似头部受伤接受评估。46 名父母监督每日重复 K-D 测试（93.8%的参与率）。受伤后 K-D 测试速度从基线的中位数下降了 7.32 秒（IQR 2.46-7.98）。球员平均需要 5.1 天/次测试才能超过基线表现。初始受伤后测试与认知恢复时间之间没有相关性。报告了 38 起来自比赛的头部受伤事件，每 1000 比赛小时的发生率为 12.7 例（95%CI 9.2-17.5）。
K-D 测试是一种实用的工具，可用于青少年社区橄榄球联盟中的基线、受伤后和家长监督的重复测试。与之前报道的相比，比赛后报告的头部受伤发生率更高。家长的参与度很高。受伤后 K-D 测试表现不应作为预测症状恢复的手段。
