Martini Douglas N, Eckner James T, Meehan Sean K, Broglio Steven P
NeuroTrauma Research Laboratory, University of Michigan, School of Kinesiology, Ann Arbor, Michigan, USA.
Michigan NeuroSport, University of Michigan, Ann Arbor, Michigan, USA.
Am J Sports Med. 2017 May;45(6):1420-1428. doi: 10.1177/0363546516686785. Epub 2017 Feb 1.
Research in sport concussion has increased greatly over the previous decade due to increased scientific interest as well as the media and political spotlight that has been cast on this injury. However, a dearth of literature is available regarding the long-term (>1 year after concussion) effects of adolescent concussion on cognitive and motor performance of high school athletes.
To evaluate the potential for long-term effects of concussion sustained during high school on cognitive and motor performance across the lifespan.
Cross-sectional study; Level of evidence, 3.
Adults with (n = 30) and without (n = 53) a concussion history were recruited in 3 age groups: younger (18-30 years; n = 43), middle-aged (40-50 years; n = 18), and older (≥60 years; n = 22). Each participant completed a computerized neurocognitive assessment and continuous tracking and discrete temporal auditory tasks with the hand and foot. Root mean squared error and timing variability were derived from the tracking and temporal auditory tasks, respectively. Data were analyzed by regression analyses for each recorded variable.
The analysis revealed significant age effects on neurocognitive task, continuous tracking task, and discrete auditory timing task performance ( P values < .05). No concussion history or interaction (concussion history by age) effects were found for performance on any task ( P values > .05).
While longitudinal investigations are still needed, this cross-sectional study failed to identify any observable effect of adolescent concussion history on cognition or motor performance with age.
由于科学兴趣的增加以及媒体和政治对这种损伤的关注，过去十年中关于运动性脑震荡的研究大幅增加。然而，关于青少年脑震荡对高中运动员认知和运动表现的长期（脑震荡后>1年）影响的文献却很匮乏。
评估高中期间发生的脑震荡对整个生命周期认知和运动表现产生长期影响的可能性。
横断面研究；证据等级，3级。
招募了有（n = 30）和无（n = 53）脑震荡史的成年人，分为3个年龄组：年轻组（18 - 30岁；n = 43）、中年组（40 - 50岁；n = 18）和老年组（≥60岁；n = 22）。每位参与者完成一项计算机化神经认知评估以及用手和脚进行的连续追踪和离散时间听觉任务。均方根误差和时间变异性分别来自追踪和时间听觉任务。对每个记录变量进行回归分析以分析数据。
分析显示年龄对神经认知任务、连续追踪任务和离散听觉定时任务表现有显著影响（P值<.05）。在任何任务的表现上均未发现脑震荡史或交互作用（脑震荡史×年龄）的影响（P值>.05）。
虽然仍需要纵向研究，但这项横断面研究未能发现青少年脑震荡史对不同年龄认知或运动表现有任何可观察到的影响。
