Leung, Felix
(1Centre for Musculoskeletal Research, Mary MacKillop Institute for Health Research, Australian Catholic University, Woolloongabba, Australia)
,
Hides, Julie A
(1Centre for Musculoskeletal Research, Mary MacKillop Institute for Health Research, Australian Catholic University, Woolloongabba, Australia)
,
Franettovich Smith, Melinda M
(2School of Health and Rehabilitation Sciences, University of Queensland, St Lucia, Australia 4072)
,
Mendis, Dilani M
(1Centre for Musculoskeletal Research, Mary MacKillop Institute for Health Research, Australian Catholic University, Woolloongabba, Australia)
,
Smith, Nigel A
(1Centre for Musculoskeletal Research, Mary MacKillop Institute for Health Research, Australian Catholic University, Woolloongabba, Australia)
,
Cooper, Andrew J
(1Centre for Musculoskeletal Research, Mary MacKillop Institute for Health Research, Australian Catholic University, Woolloongabba, Australia)
,
Treleaven, Julia
(2School of Health and Rehabilitation Sciences, University of Queensland, St Lucia, Australia 4072)
,
Choy, Nancy Low
(3<)
ObjectiveTo examine whether physical measurements of the sensorimotor system predict concussion incurred by footballers.DesignProspective cohort study.SettingAustralian professional sport setting.ParticipantsFifty-three rugby union and rugby league players.Assessment of risk factorsPhysical measurem...
ObjectiveTo examine whether physical measurements of the sensorimotor system predict concussion incurred by footballers.DesignProspective cohort study.SettingAustralian professional sport setting.ParticipantsFifty-three rugby union and rugby league players.Assessment of risk factorsPhysical measurements including balance (sway across six test conditions), vestibular function (assessments of oculo-motor and vestibular ocular reflex) and spinal control (cervical joint position error and trunk muscle size and contraction ability) were performed during the preseason.Outcome measuresConcussion injuries during the season were diagnosed and recorded by club medical staff.ResultsAge, height, weight, and years playing football were not associated with concussion in the season (p=0.43, 0.43, 0.19, 0.25). Preseason cross-sectional area of the multifidus muscle at the L5 vertebral level was 10% smaller in players who went on to sustain a season concussion compared to those who did not: mean difference (95% confidence interval) 1.0 cm2 (0.1 cm2 to 1.9 cm2), p=0.031. This difference in size was moderate (effect size 0.7) and exceeds the minimal detectable change of 0.4 cm2. There were no significant differences observed for the other measures, p>0.05.ConclusionsOptimal spinal control is likely to be a key requirement in a physically demanding sport such as football. The multifidus is one of the muscles crucial for spinal control, and our findings report this measure to be predictive of footballers sustaining a concussion. This novel finding provides preliminary evidence that warrants further investigation as to the possible importance of spinal control in prevention programsCompeting interestsNone.
ObjectiveTo examine whether physical measurements of the sensorimotor system predict concussion incurred by footballers.DesignProspective cohort study.SettingAustralian professional sport setting.ParticipantsFifty-three rugby union and rugby league players.Assessment of risk factorsPhysical measurements including balance (sway across six test conditions), vestibular function (assessments of oculo-motor and vestibular ocular reflex) and spinal control (cervical joint position error and trunk muscle size and contraction ability) were performed during the preseason.Outcome measuresConcussion injuries during the season were diagnosed and recorded by club medical staff.ResultsAge, height, weight, and years playing football were not associated with concussion in the season (p=0.43, 0.43, 0.19, 0.25). Preseason cross-sectional area of the multifidus muscle at the L5 vertebral level was 10% smaller in players who went on to sustain a season concussion compared to those who did not: mean difference (95% confidence interval) 1.0 cm2 (0.1 cm2 to 1.9 cm2), p=0.031. This difference in size was moderate (effect size 0.7) and exceeds the minimal detectable change of 0.4 cm2. There were no significant differences observed for the other measures, p>0.05.ConclusionsOptimal spinal control is likely to be a key requirement in a physically demanding sport such as football. The multifidus is one of the muscles crucial for spinal control, and our findings report this measure to be predictive of footballers sustaining a concussion. This novel finding provides preliminary evidence that warrants further investigation as to the possible importance of spinal control in prevention programsCompeting interestsNone.
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