Reaction Time and Joint Kinematics During Functional Movement in Recently Concussed Individuals
Reaction Time and Joint Kinematics During Functional Movement in Recently Concussed Individuals
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DOI：
10.1016/j.apmr.2017.12.011
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发表时间：
2018-05-01
影响因子：
4.3
通讯作者：
Mihalik, Jason P.
中科院分区：
文献类型：
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作者：
Lynall, Robert C.;Blackburn, J. Troy;Mihalik, Jason P.
目的：比较近期脑震荡运动员和匹配的对照休闲运动员在3项功能任务中的运动反应时和关节运动学。设计：横断面。设置：实验室。参与者：大学年龄休闲运动员（N = 30），分为2组（各15名参与者）：（1）近期脑震荡组（自脑震荡以来的中位时间，126天;范围，28- 432天）和（2）最近没有脑震荡的年龄和性别匹配的对照组。我们研究了3个任务中的运动反应时间和关节运动学：（1）跳跃着陆，（2）预期切割，和（3）意外切割。反应时间和反应时间成本（跳跃着陆反应时间切割反应时间/跳跃着陆反应时间× 100%），沿着与初始地面接触时矢状面和额状面中的躯干、髋关节和膝关节角度。两组之间的反应时间没有差异，但对照组在预期切割过程中的反应时间成本（10.7%）比脑震荡组（0.8%; P = 0.030）有所改善。在非优势预期切割过程中，对照组的躯干屈曲度低于脑震荡组（差异5.1; P = 0.022）。组间无其他运动学差异（P >=.079）。结论：我们观察到最近脑震荡和脑震荡后恢复活动一个月以上的无脑震荡个体之间的微妙反应时间和运动学差异。这些发现的临床解释尚不清楚，但可能对脑震荡后的管理和康复有未来的影响。(C)2018年美国康复医学大会
Objective: To compare movement reaction time and joint kinematics between athletes with recent concussion and matched control recreational athletes during 3 functional tasks.Design: Cross-sectional.Setting: Laboratory.Participants: College-aged recreational athletes (N = 30) comprising 2 groups (15 participants each): (1) recent concussion group (median time since concussion, 126d; range, 28-432d) and (2) age- and sex-matched control group with no recent concussions.Interventions: We investigated movement reaction time and joint kinematics during 3 tasks: (1) jump landing, (2) anticipated cut, and (3) unanticipated cut.Main Outcome Measures: Reaction time and reaction time cost (jump landing reaction time cut reaction time/jump landing reaction time x 100%), along with trunk, hip, and knee joint angles in the sagittal and frontal planes at initial ground contact.Results: There were no reaction time between-group differences, but the control group displayed improved reaction time cost (10.7%) during anticipated cutting compared with the concussed group (0.8%; P = .030). The control group displayed less trunk flexion than the concussed group during the nondominant anticipated cut (5.1 difference; P = .022). There were no other kinematic between-group differences (P >=.079).Conclusions: We observed subtle reaction time and kinematic differences between individuals with recent concussion and those without concussion more than a month after return to activity after concussion. The clinical interpretation of these findings remains unclear, but may have future implications for postconcussion management and rehabilitation. (C) 2018 by the American Congress of Rehabilitation Medicine