Do concussion related deficits in reaction time inform return to activity?

Do concussion related deficits in reaction time inform return to activity?

Numerous studies report deficits in reaction time following a concussion, including published research using Neurolign Dx platform devices [1,2].

The recovery time course of reaction time deficits was recently reviewed in “Examination of Reaction Time Deficits Following Concussion: A Systematic Review and Meta-analysis” [3], summarizing data from 60 studies totalling 9688 subjects. Results show a decline in reaction time in the immediate post-concussion period (0-3 days) with continuing slowed reaction time 21-59 days post-concussion. Reaction time deficits resolved or improved within 80-365 days post-concussion.

Growing scientific research highlights the value of reaction time for evaluating concussion and informing return to activity and or play decisions. The Neurolign Dx 100™ includes reaction time testing including auditory, visual and dual-task reaction time within their Brain Health Assessment.

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References:

1 Cochrane GD, Christy JB, Almutairi A, Busettini C, Swanson MW, Weise KK.,  Visuo-oculomotor Function and Reaction Times in Athletes with and without Concussion. Optom Vis Sci. 2019 Apr;96(4):256-265. doi: 10.1097/OPX.0000000000001364. PMID:30907863

2 Kelly KM, Kiderman A, Akhavan S, Quigley MR, Snell ED, Happ E, Synowiec AS, Miller ER, Bauer MA, Oakes LP, Eydelman Y, Gallagher CW, Dinehart T, Schroeder JH, Ashmore RC. Oculomotor, Vestibular, and Reaction Time Effects of Sports-Related Concussion: Video-Oculography in Assessing Sports-Related Concussion., J Head Trauma Rehabil. 2019 May/Jun;34(3):176-188. doi: 10.1097/HTR.0000000000000437. PMID: 30234848

3 Lempke LB, Howell DR, Eckner JT, Lynall RC., Examination of Reaction Time Deficits Following Concussion: A Systematic Review and Meta-analysis., Sports Med. 2020 Mar 11. doi: 10.1007/s40279-020-01281-0. PMID: 32162242.