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Sensorimotor system changes in adolescent rugby players post-concussion : A prospective investigation from the subacute period through to return-to-sport
Leung, Felix T. Mendis, M. Dilani Franettovich Smith, Melinda M. Rahmann, Ann Treleaven, Julia Hides, Julie A.
Leung, Felix T.
Mendis, M. Dilani
Franettovich Smith, Melinda M.
Rahmann, Ann
Treleaven, Julia
Hides, Julie A.
Abstract
Background
The pathophysiology of concussion is complex. Altered sensorimotor function post-concussion may contribute to the wide range of symptoms and impairments reported. There is currently limited evidence documenting changes in sensorimotor function during the recovery period. The aim of this study was to investigate the effect of concussion on the sensorimotor system in adolescents post-concussion using a multifaceted approach.
Study design
Prospective nested case-control study.
Methods
A total of 285 male adolescent rugby players underwent assessment of sensorimotor function during preseason. Players who sustained a concussion during the season and control players, matched for age and playing position, were assessed in the subacute period (3–5 days) and after return-to-sport (3 weeks). Tests of sensorimotor function included balance, cervical spine and vestibulo-ocular function, and measurement of the size and contraction of lumbopelvic muscles (ultrasound imaging).
Results
Twenty-three players (8%) sustained a concussion. Of these, 20 players were assessed during the subacute period and 17 players following return-to-sport. The prevalence of vestibulo-ocular dysfunction increased from 38.9% to 72.2% during the subacute period and dysfunction was present in 83.3% of players after return-to-sport (p = 0.01). Changes in lumbar multifidus muscle size (p = 0.002) and thickness (p = 0.05) at the L5 vertebral level were observed. No statistically significant changes in balance, cervical spine proprioception, or contraction of lumbopelvic muscles were found (p > 0.05).
Conclusion
Changes in sensorimotor function were observed in the subacute period post-concussion, with some persisting after return-to-sport. Using symptom-based criteria for return-to-sport may not adequately reflect the sequelae of concussion on the sensorimotor system.
Keywords
balance, cervical, lumbar multifidus, ultrasound, vestibular
Date
2022
Type
Journal article
Journal
Musculoskeletal Science and Practice
Book
Volume
57
Issue
Page Range
1-8
Article Number
Article 102492
ACU Department
School of Allied Health
Faculty of Health Sciences
Faculty of Health Sciences
Collections
Relation URI
Source URL
Event URL
Open Access Status
License
All rights reserved
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Controlled
Notes
© 2021 Elsevier Ltd. All rights reserved.