PDF(Pubmed)
Abstract：
Our goal was to evaluate persisting deficits in gait and executive functioning in asymptomatic athletes with a history of concussion using a novel approach combining a dual-task paradigm and post-exercise exertion. Thirty-eight athletes aged 17 to 25 years old participated in the study, including 18 with a history of concussion. The dual-task paradigm required walking continuously at a predetermined self-paced target speed of 6.5 km/h while executing a complex switch task. Athletes completed two conditions, each on separate days: (1) dual task alone and (2) dual task following 20 min of running on a non-motorized treadmill. The statistical analyses revealed a significant reduction in gait speed exclusively for athletes with a history of concussion and only following the post-exercise condition (p = 0.008). These findings suggest that although asymptomatic concussed athletes maintain a cognitive performance comparable to non-concussed athletes, this appears to be achieved at the expense of gait speed. Our results underscore the importance of incorporating gait assessments and post-exercise exertion into concussion evaluation protocols in both research and clinical settings.
摘要：
我们的目标是使用一种结合双重任务范式和运动后劳累的新颖方法，评估有脑震荡史的无症状运动员的步态和执行功能的持续缺陷。三十八名年龄介乎十七至二十五岁的运动员参与研究,包括有脑震荡史的18人.双任务范例要求在执行复杂的切换任务的同时，以6.5km/h的预定自定进度目标速度连续行走。运动员完成两个条件，每个单独的日子：（1）双重任务和（2）双重任务在非机动跑步机上运行20分钟后。统计分析显示，仅对于有脑震荡病史且仅在运动后条件下的运动员，步态速度显着降低（p=0.008）。这些发现表明，尽管无症状的脑震荡运动员保持了与非脑震荡运动员相当的认知表现，这似乎是以步态速度为代价的。我们的结果强调了在研究和临床环境中，将步态评估和运动后锻炼纳入脑震荡评估方案的重要性。
