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Concussion History and Balance Performance in Adolescent Rugby Union Players

BACKGROUND: Sports-related concussion is a worldwide problem. There is a concern that an initial concussion can cause prolonged subclinical disturbances to sensorimotor function that increase the risk of subsequent injury. The primary aim of this study was to examine whether a history of sports-rela...

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Autores principales: Matthews, Mark, Johnston, William, Bleakley, Chris M., Davies, Richard J., Rankin, Alan T., Webb, Michael, Caulfield, Brian C., Archbold, H.A.P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8020306/
https://www.ncbi.nlm.nih.gov/pubmed/33729858
http://dx.doi.org/10.1177/0363546521998709
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author Matthews, Mark
Johnston, William
Bleakley, Chris M.
Davies, Richard J.
Rankin, Alan T.
Webb, Michael
Caulfield, Brian C.
Archbold, H.A.P.
author_facet Matthews, Mark
Johnston, William
Bleakley, Chris M.
Davies, Richard J.
Rankin, Alan T.
Webb, Michael
Caulfield, Brian C.
Archbold, H.A.P.
author_sort Matthews, Mark
collection PubMed
description BACKGROUND: Sports-related concussion is a worldwide problem. There is a concern that an initial concussion can cause prolonged subclinical disturbances to sensorimotor function that increase the risk of subsequent injury. The primary aim of this study was to examine whether a history of sports-related concussion has effects on static and dynamic balance performance in adolescent rugby players. HYPOTHESIS: Dynamic balance would be worse in players with a history of concussion compared with those with no history of concussion. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: Male adolescent rugby players aged 14 to 18 years from 5 schools were recruited before the start of the 2018-2019 playing season. Participants completed questionnaires and physical tests, including dynamic Y balance and single-leg static balance (eyes closed) tests, while performing single and dual tasks. Dynamic balance was assessed using inertial sensor instrumentation. Dependent variables were normalized reach distance and the sample entropy (SEn) of the 3 axes (x, y, and z). RESULTS: Of the 195 participants, 100 reported a history of concussion. Those with a history of concussion demonstrated higher SEn in all directions, with highest values during anterior (standardized mean difference [SMD], 0.4; 95% CI, 0.0-0.7; P = .027) and posteromedial (SMD, 0.5; 95% CI, 0.2-0.9; P = .004) reach directions compared with those with no history. There was no difference between groups (concussion history vs control) in traditional Y balance reach distances in the anterior or posteromedial directions or single-leg static balance during both single- (P = .47) and dual-task (P = .67) conditions. CONCLUSION: Adolescent rugby union athletes with a history of concussion had poorer dynamic balance during performance tasks compared with healthy controls. Static single-leg balance tests, either single or dual task, may not be sensitive enough to detect sensorimotor deficits in those with a history of concussion.
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spelling pubmed-80203062021-04-16 Concussion History and Balance Performance in Adolescent Rugby Union Players Matthews, Mark Johnston, William Bleakley, Chris M. Davies, Richard J. Rankin, Alan T. Webb, Michael Caulfield, Brian C. Archbold, H.A.P. Am J Sports Med Articles BACKGROUND: Sports-related concussion is a worldwide problem. There is a concern that an initial concussion can cause prolonged subclinical disturbances to sensorimotor function that increase the risk of subsequent injury. The primary aim of this study was to examine whether a history of sports-related concussion has effects on static and dynamic balance performance in adolescent rugby players. HYPOTHESIS: Dynamic balance would be worse in players with a history of concussion compared with those with no history of concussion. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: Male adolescent rugby players aged 14 to 18 years from 5 schools were recruited before the start of the 2018-2019 playing season. Participants completed questionnaires and physical tests, including dynamic Y balance and single-leg static balance (eyes closed) tests, while performing single and dual tasks. Dynamic balance was assessed using inertial sensor instrumentation. Dependent variables were normalized reach distance and the sample entropy (SEn) of the 3 axes (x, y, and z). RESULTS: Of the 195 participants, 100 reported a history of concussion. Those with a history of concussion demonstrated higher SEn in all directions, with highest values during anterior (standardized mean difference [SMD], 0.4; 95% CI, 0.0-0.7; P = .027) and posteromedial (SMD, 0.5; 95% CI, 0.2-0.9; P = .004) reach directions compared with those with no history. There was no difference between groups (concussion history vs control) in traditional Y balance reach distances in the anterior or posteromedial directions or single-leg static balance during both single- (P = .47) and dual-task (P = .67) conditions. CONCLUSION: Adolescent rugby union athletes with a history of concussion had poorer dynamic balance during performance tasks compared with healthy controls. Static single-leg balance tests, either single or dual task, may not be sensitive enough to detect sensorimotor deficits in those with a history of concussion. SAGE Publications 2021-03-17 2021-04 /pmc/articles/PMC8020306/ /pubmed/33729858 http://dx.doi.org/10.1177/0363546521998709 Text en © 2021 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/ This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Articles
Matthews, Mark
Johnston, William
Bleakley, Chris M.
Davies, Richard J.
Rankin, Alan T.
Webb, Michael
Caulfield, Brian C.
Archbold, H.A.P.
Concussion History and Balance Performance in Adolescent Rugby Union Players
title Concussion History and Balance Performance in Adolescent Rugby Union Players
title_full Concussion History and Balance Performance in Adolescent Rugby Union Players
title_fullStr Concussion History and Balance Performance in Adolescent Rugby Union Players
title_full_unstemmed Concussion History and Balance Performance in Adolescent Rugby Union Players
title_short Concussion History and Balance Performance in Adolescent Rugby Union Players
title_sort concussion history and balance performance in adolescent rugby union players
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8020306/
https://www.ncbi.nlm.nih.gov/pubmed/33729858
http://dx.doi.org/10.1177/0363546521998709
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