To examine the effects of 15 min of high intensity treadmill running on concussion testing assessed by the King-Devick test.
Prospective Cohort Study.
Participants self-selected to either a running or a control group. At baseline both groups were assessed using the King-Devick concussion test. The running group then completed 15-minutes of treadmill running at rating of perceived exertion of 7–9/10 while the control group sat quietly. Both groups repeated the King-Devick test following that 15-minute period.
Participants (n = 84 men, 53 women) were divided in two groups; running or control. Both groups, on average, had significant improvement after 15 min (suggesting a learning effect). Comparisons between the baseline and re-assessment scores indicated impaired performance was more common following high intensity treadmill running (n = 23 participants, 34.3%) compared to the control group (n = 10 participants, 14.3%, p = 0.006, OR = 3.44 [95%CI 1.40–8.50]). Four participants in the running group worsened their score at reassessment by more than 3 s compared to no participants in the control group.
After 15 min of high intensity treadmill running, 1 in 3 participants scored a slower time at follow-up or committed a mistake compared to baseline. Implications for clinical practise include: the recommendation that baseline tests be conducted at rest and after high intensity exercise to provide accurate comparisons to assist in clinical decision making; and a cut-off of >3 s may be a clinically useful difference between resting baseline and re-assessment using the King-Devick test.
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- An introduction to sports concussions.Continuum (Minneapolis, Minn). 2014; 20: 1545-1551
- A review of magnetic resonance imaging and diffusion tensor imaging findings in mild traumatic brain injury.Brain Imaging Behav. 2012; 6: 137-192
- The national academies collection: reports funded by National Institutes of Health.in: Graham R. Rivara F.P. Ford M.A. Spicer C.M. Sports-related Concussions in Youth: Improving the Science, Changing the Culture. National Academies Press (US), Washington (DC)2014 (Copyright 2014 by the National Academy of Sciences. All rights reservEd.)
- Immediate post-concussion assessment and cognitive testing (ImPACT) practices of sports medicine professionals.J Athl Train. 2009; 44: 639-644
- Validation of the abbreviated Westmead post-traumatic amnesia scale: a brief measure to identify acute cognitive impairment in mild traumatic brain injury.Brain Inj. 2011; 25: 1198-1205
- Consensus statement on concussion in sport-the 5th international conference on concussion in sport held in Berlin, October 2016.Br J Sports Med. 2017; : 1-10
- Standardized mental status testing on the sideline after sport-related concussion.J Athl Train. 2001; 36: 274-279
- The King-Devick test and sports-related concussion: study of a rapid visual screening tool in a collegiate cohort.J Neurol Sci. 2011; 309: 34-39
- Comparison and utility of King-Devick and ImPACT(R) composite scores in adolescent concussion patients.J Neurol Sci. 2013; 334: 148-153
- The King-Devick test as a determinant of head trauma and concussion in boxers and MMA fighters.Neurology. 2011; 76: 1456-1462
- The King-Devick test as a concussion screening tool administered by sports parents.J Sports Med Phys Fitness. 2014; 54: 70-77
- Test-retest reliability of the King-Devick test in elite junior olympic athletes.Ovp J. 2016; 4
- The King-Devick test of rapid number naming for concussion detection: meta-analysis and systematic review of the literature.Concussion. 2016; 1 (null)
- Adding vision to concussion testing: a prospective study of sideline testing in youth and collegiate athletes.J Neuroophthalmol. 2015; 35: 235-241
- The King-Devick test was useful in management of concussion in amateur rugby union and rugby league in New Zealand.J Neurol Sci. 2015; 351: 58-64
- Concussions in amateur rugby union identified with the use of a rapid visual screening tool.J Neurol Sci. 2013; 326: 59-63
- Use of a rapid visual screening tool for the assessment of concussion in amateur rugby league: a pilot study.J Neurol Sci. 2012; 320: 16-21
- Balance error scoring system performance changes after a competitive athletic season.Clin J Sport Med. 2013; 23: 312-317
- Standardized assessment of concussion (SAC): on-site mental status evaluation of the athlete.J Head Trauma Rehabil. 1998; 13: 27-35
- Test–retest reliability and the effects of exercise on the King-Devick test.Clin J Sport Med. 2020; 30: 239-244
- The King-Devick test of rapid number naming for concussion detection: meta-analysis and systematic review of the literature.Concussion. 2016; 1: Cnc8
- Position statement on physical activity and exercise intensity terminology.J Sci Med Sport. 2010; 13: 496-502
- Effect displays in R for generalised linear models.2003. 2003; 8: 27
- Cumulative effects of concussion history on baseline computerized neurocognitive test scores: systematic review and meta-analysis.Sports Health. 2017; 9: 324-332
- The association of history of concussion with baseline scores on the sport concussion assessment tool (SCAT5) in high school rugby players.Orthop J Sports Med. 2019; 72325967119S2325900006
- The King-Devick test for sideline concussion screening in collegiate football.J Optom. 2015; 8: 131-139
- Physical activity, including walking, and cognitive function in older women.JAMA. 2004; 292: 1454-1461
- Common causes of dyspnoea in athletes: a practical approach for diagnosis and management.Breathe (Sheff). 2016; 12 (e22-37)
- Physical and cognitive consequences of fatigue: a review.J Adv Res. 2015; 6: 351-358
Published online: October 21, 2022
Accepted: October 20, 2022
Received in revised form: September 11, 2022
Received: December 8, 2021
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