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Quantitative Static and Dynamic Assessment of Balance Control in Stroke Patients
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Sensor-Based Balance Measures Outperform Modified Balance Error Scoring System in Identifying Acute Concussion.

Laurie A King1, Martina Mancini2, Peter C Fino2

  • 1Parkinson Center of Oregon, Department of Neurology, School of Medicine, Oregon Health & Science University, OP32, 3181 S.W. Sam Jackson Park Rd., Portland, OR, 97239-3098, USA. kingla@ohsu.edu.

Annals of Biomedical Engineering
|May 26, 2017
PubMed
Summary

Objective balance assessment using inertial sensors during the modified balance error scoring system (mBESS) can detect acute concussion in athletes. Mediolateral sway in double stance best identified concussed individuals, offering a more sensitive tool than traditional methods.

Keywords:
BESSBalanceBrain injuryConcussionInertial sensorsPostural swaymTBI

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Area of Science:

  • Sports Medicine
  • Neurology
  • Biomechanics

Background:

  • Balance assessment is crucial for concussion evaluation and management.
  • The modified balance error scoring system (mBESS) is the standard clinical tool.
  • Objective metrics from wearable sensors may enhance concussion detection sensitivity.

Purpose of the Study:

  • To identify which mBESS stance condition and sway metrics from lumbar inertial sensors best discriminate acute concussion in athletes.
  • To compare the sensitivity of sensor-derived metrics versus the clinical mBESS.

Main Methods:

  • Fifty-two college athletes with acute concussion and 76 controls participated.
  • Inertial sensors were placed on the lumbar spine during mBESS testing.
  • Postural sway metrics were analyzed for different stance conditions.

Main Results:

  • Inertial sensor measures objectively detected group differences in acutely concussed athletes (p < 0.001).
  • The clinical mBESS did not significantly differentiate groups (p = 0.06).
  • Mediolateral postural sway during double stance was the best classifier for acute concussion.

Conclusions:

  • Inertial sensors provide a sensitive and objective measure of balance deficits in acute concussion.
  • Lumbar sensor-based mediolateral sway during double stance effectively identifies concussed athletes.
  • These findings can inform guidelines for improved postural sway analysis post-concussion.