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Related Experiment Video

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Objectively Assessing Sports Concussion Utilizing Visual Evoked Potentials
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Pre-season concussion assessment utilizing the King-Devick Test.

Ethan A Hood1, Dennis W Klima2, Kevin K Chui3

  • 1Doctor of Physical Therapy Program, DeSales University , Center Valley , PA , USA.

Research in Sports Medicine (Print)
|October 20, 2018
PubMed
Summary

The King-Devick Test (KDT) shows reliability for concussion screening and correlates with cognitive tests. Athletes in different sports, like football and soccer, exhibit distinct baseline KDT scores.

Keywords:
King-DevickSports related concussion

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Area of Science:

  • Sports Medicine
  • Neuroscience
  • Concussion Research

Background:

  • Concussion screening is crucial for athlete safety.
  • The King-Devick Test (KDT) is a rapid visual-screening tool.
  • Understanding test-retest reliability and validity is essential for clinical use.

Purpose of the Study:

  • To evaluate the test-retest reliability of the KDT for concussion screening.
  • To determine the concurrent validity of the KDT against neurocognitive assessments.
  • To investigate sport-specific performance differences in the KDT.

Main Methods:

  • Two hundred sixty-six high school football and soccer players participated.
  • The King-Devick Test (KDT) and Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) were administered.
  • Correlations between KDT scores and ImPACT measures were analyzed.

Main Results:

  • The KDT demonstrated good test-retest reliability.
  • KDT performance correlated significantly with ImPACT visual motor speed, reaction time, and Cognitive Efficiency Index.
  • Significant baseline differences in KDT scores were observed between football and soccer players.

Conclusions:

  • The King-Devick Test (KDT) exhibits concurrent validity with key neurocognitive domains.
  • Sport-specific differences in baseline KDT performance suggest varying neurocognitive demands.
  • The KDT is a reliable tool for concussion screening in athletes.