Second time around: Corticospinal responses following repeated sports-related concussions within the same season. A transcranial magnetic stimulation study

Alan J Pearce; Daniel T Corp; Charlotte B Davies; Brendan P Major; Jerome J Maller

doi:10.1016/S2221-6189(14)60042-1

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Second time around: Corticospinal responses following repeated sports-related concussions within the same season. A transcranial magnetic stimulation study

Journal article

Open access

Peer reviewed

Second time around: Corticospinal responses following repeated sports-related concussions within the same season. A transcranial magnetic stimulation study

Alan J Pearce, Daniel T Corp, Charlotte B Davies, Brendan P Major and Jerome J Maller

Journal of acute disease, Vol.3(3), pp.186-193

01/01/2014

DOI: 10.1016/S2221-6189(14)60042-1

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Abstract

To investigate the degree of neurophysiological and cognitive performance changes resulting from repeat concussions sustained in a single season of Australian Rules football. Three amateur football players were recruited after sustainingtwo concussions during a single season of playing. Each player was assessed at multiple time points by transcranial magnetic stimulation (TMS) and electromyography, as well as tested for fine motor and cognitive performance after each concussion. In all three cases, concussions resulted in reduction in fine dexterity and visuomotor reaction time, cognitive attention performance and increase in intracortical inhibition from TMS. No changes in performance or TMS outcomes were found as a result of the order of the concussions. However, changes observed were dependent on the severity of the concussion. This multiple-case study has demonstrated that concussion result in increased intracortical inhibition and reduction in cognitive and motor performance. Further, TMS, in conjunction with tests of cognitive and motor performance, can be useful as a prognostic technique in assessing recovery from acute concussion injury.

Brain concussion

Recovery of function

Sports

Transcranial magnetic stimulation

Details

Title: Subtitle: Second time around: Corticospinal responses following repeated sports-related concussions within the same season. A transcranial magnetic stimulation study
Creators: Alan J Pearce - Deakin University
Daniel T Corp - Deakin University
Charlotte B Davies - Deakin University
Brendan P Major - Deakin University
Jerome J Maller - Monash Alfred Psychiatry Research centre
Resource Type: Journal article
Publication Details: Journal of acute disease, Vol.3(3), pp.186-193
DOI: 10.1016/S2221-6189(14)60042-1
ISSN: 2221-6189
eISSN: 2221-6189
Publisher: Elsevier B.V
Number of pages: 8
Language: English
Date published: 01/01/2014
Academic Unit: Radiology
Record Identifier: 9984920699102771

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