Concussion management in soccer

Mihalik, Jason P.; Lynall, Robert C.; Teel, Elizabeth; Carneiro, Kevin

doi:10.1016/j.jshs.2014.07.005

Cited by 10 publications

(8 citation statements)

References 40 publications

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“…However, ballistic muscle contractions in the soleus and gastrocnemius occur over a portion of this relatively high frequency spectrum (1)(2)(3) [35,36] and comprise a critical active component for maintaining upright stance [37,38]. Additionally, COP spectral content up to 9…”

Section: Discussionmentioning

confidence: 99%

“…Sport-related concussion has been recognized as a health concern, and balance assessments are an integral part of concussion assessments to ensure athletes with previously disrupted balance are fit to return-to-play (RTP) [1][2][3]. Compared with traditional clinical balance measures, nonlinear dynamic analysis of postural stability has shown greater sensitivity in identifying postural control differences post-concussion [4].…”

Section: Introductionmentioning

confidence: 99%

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Decreased high-frequency center-of-pressure complexity in recently concussed asymptomatic athletes

2016

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Two experiments compared multiple methods of estimating postural stability entropy to address: 1) if postural complexity differences exist between concussed and healthy athletes immediately following return-to-play; 2) which methods best detect such differences; and 3) what is an appropriate interpretation of such differences. First, center of pressure (COP) data were collected from six concussed athletes over the six weeks immediately following their concussion and from 24 healthy athletes. Second, 25 healthy non-athletes performed four quiet standing tasks: normal, co-contracting their lower extremity muscles, performing a cognitive arithmetic task, and voluntarily manipulating their sway. Postural complexity was calculated using approximate, sample, multi-variate sample, and multi-variate composite multi-scale (MV-CompMSE) entropy methods for both high-pass filtered and low-pass filtered COP data. MV-CompMSE of the high-pass filtered COP signal identified the most consistent differences between groups, with concussed athletes exhibiting less complexity over the high frequency COP time-series. Among healthy non-athletes, high-pass filtered MV-CompMSE increased only in the co-contraction condition, suggesting the decrease in high frequency MV-CompMSE found in concussed athletes may be due to more relaxed muscles or less complex muscle contractions. This decrease in entropy may associate with reported increases in intra-cortical inhibition. Furthermore, a single-case study suggested high frequency MV-CompMSE may be a useful clinical tool for concussion management.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Decreased high-frequency center-of-pressure complexity in recently concussed asymptomatic athletes

2016

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“…If a recorder fails to recognize a break in form, the BESS scores might not accurately reflect a participant's balance. 11,12 Balance deficits are a common symptom of mTBI. Because the inner ear contains the sensory organs that are responsible for hearing and balance, OptoGait results that relate to the hearing-impaired condition raise the most interest.…”

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confidence: 99%

Validation of the OptoGait System for Monitoring Treatment and Recovery of Post-Concussion Athletes

Engelson

Bruns²,

Nightingale

et al. 2017

Journal of Chiropractic Medicine

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Objective: This study sought to investigate correlations between OptoGait motion analysis technology and 2 commonly used concussion assessment instruments, the Balance Evaluation Scoring System (BESS) and the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) computerized neurocognitive assessment software, to see if OptoGait might be a valid concussion assessment tool. Methods: Twenty Division-1 college women varsity soccer players completed trials of 8 different conditions of the OptoGait test battery. Then participants completed the BESS and ImPACT tests. One hundred twenty-eight total spatiotemporal variables were recorded for each trial of OptoGait. Pearson's r correlations among these variables and BESS and ImPACT results were calculated, and pattern analysis was completed to evaluate for emergent patterns in the data. Results: Correlations for the 8 OptoGait mean-score subtests were related to the balance double-leg foam test (BESS). Correlations for the 8 OptoGait mean-score subtests were related to the balance double-leg foam test (BESS), and correlations between OptoGait standard deviation measures and the balance tandem hard surface test (BESS) both indicated potentially significant patterns. No consistent patterns of correlation existed between the OptoGait variables and the ImPACT results. Conclusion: OptoGait conditions correlate at higher than predicted rates with subtests of the BESS instruments but not the ImPACT measures. (J Chiropr Med 2017;16:163-169)

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“…One of the main problems related to sport concussions is the difficulty of on-field diagnosis and management 13. A considered strength of the results obtained in this article is that an athlete was examined by a doctor at the side of the tatami, observing the bout; also, the diagnosis was confirmed by further examination from two more doctors, highly experienced in combat sport medicine and neurology (belonging to the WKF Medical Commission).…”

Section: Discussionmentioning

confidence: 80%