Iverson Grant L, Van Patten Ryan, Gardner Andrew J
Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, United States.
Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, United States.
Front Neurol. 2021 Mar 1;11:620872. doi: 10.3389/fneur.2020.620872. eCollection 2020.
To examine the relationship between video-identified onfield motor incoordination, the acute assessment of concussion, and recovery time during three seasons of National Rugby League (NRL) play. Blows to the head ("head impact events") were recorded by sideline video operators and medical staff. Any player with a suspected concussion underwent a Head Injury Assessment in which he was taken off the field and medically evaluated, including the administration of the Sports Concussion Assessment Tool, 5th Edition (SCAT5). Video footage was later examined to determine the presence or absence of onfield motor incoordination following the head impact event. Motor incoordination was identified in 100/1,706 head impact events (5.9%); 65 of the 100 instances of motor incoordination (65.0%) were ultimately medically diagnosed with a concussion. In 646 athletes for whom SCAT5 data were available, those with motor incoordination were more likely to report both dizziness and balance problems than those without motor incoordination, but there were no group differences on an objective balance test. Additionally, there was no relationship between presence/absence of motor incoordination and number of games missed or time to medical clearance for match play. In NRL players, motor incoordination is a readily observable onfield sign that is strongly associated with a medical diagnosis of concussion and with self-reported dizziness/balance problems. However, onfield motor incoordination is not associated with objective balance performance and it is not predictive of time to recover following concussion.
为了研究在国家橄榄球联盟（NRL）三个赛季的比赛中，视频识别的场上运动不协调、脑震荡的急性评估与恢复时间之间的关系。头部撞击事件（“头部撞击情况”）由场边视频操作员和医务人员记录。任何疑似脑震荡的球员都要接受头部损伤评估，在此过程中，他会被带离赛场并接受医学评估，包括使用第五版运动脑震荡评估工具（SCAT5）。随后查看视频片段，以确定头部撞击事件后是否存在场上运动不协调情况。在1706次头部撞击事件中，有100次（5.9%）发现了运动不协调；在这100例运动不协调情况中，有65例（65.0%）最终被医学诊断为脑震荡。在有SCAT5数据的646名运动员中，与没有运动不协调的运动员相比，有运动不协调的运动员更有可能报告头晕和平衡问题，但在客观平衡测试中两组没有差异。此外，运动不协调的有无与错过的比赛场次或恢复比赛的医疗许可时间之间没有关系。在NRL球员中，运动不协调是一种在场上很容易观察到的体征，与脑震荡的医学诊断以及自我报告的头晕/平衡问题密切相关。然而，场上运动不协调与客观平衡表现无关，也不能预测脑震荡后的恢复时间。
