What sideline tests help diagnose concussion in athletes?
In patients suspected of having a concussion after a nontrivial head injury, the presence of headache alone has a sensitivity of 0.76 to 1.0 and a specificity of 0.83...
Research Abstract Category: Concussions
‘Sandbagging’ a Vision Test for Concussion-based Sideline Assessment: An Eye Movement Investigation Objectively Reveals the ‘Gamers’ Strategies
Objective: Quantitative eye movement characterization during ‘sandbagging’ of the rapid number naming King Devick (K-D) test. Background: Athletes may under-report concussion symptoms, leading to inappropriate return-to-play and increased risk...
Relation of Quantitative Eye Movements with Cognitive Dysfunction in Patients with Concussion
Objective: To assess the relation of quantitative eye movements with cognitive dysfunction in concussion. Background: Inter-saccadic interval (ISI) prolongation during rapid number naming on King-Devick (K-D) testing has been...
Correlating the King-Devick Test with Vestibular/Ocular Motor Screening in Adolescent Patients with Concussion: A Pilot Study
Background: The King-Devick (K-D) test is a rapid number-naming task that has been well validated as a sensitive sideline performance measure for concussion detection. Patients with concussion take significantly...
The King–Devick test is a valid and reliable tool for assessing sport-related concussion in Australian football: A prospective cohort study
Objectives Sport-related concussion (SRC) research has focused on impaired oculomotor function. The King–Devick (K–D) test measures oculomotor performance and is reported to identify suboptimal brain function. The use of...
Reported concussion incidence in youth community Rugby Union and parental assessment of post head injury cognitive recovery using the King-Devick test
Aim: To assess the frequency of reported head injuries in youth community Rugby Union and determine whether the King-Devick (K-D) test could be used by parents as a means...
Reliability of the King-Devick Test as a Baseline Concussion Test for Professional Football Players
Objective: To evaluate the reliability of the King-Devick (K-D) Test in a sample of professional football players across three consecutive seasons. Methods: Team personnel tested players (n=135) with the...
King-Devick and SCAT Symptoms as a Predictor of Return to Play in Professional Canadian Football Players
Objective: To investigate variables that predict time loss following the diagnosis of sport related concussion (SRC) in Canadian Football Players. Background: Literature on the timeline to return-to-play (RTP) from...
Rapid Number Naming and Quantitative Eye Movements May Reflect Contact Sport Exposure in a Collegiate Ice Hockey Cohort
Background: The King-Devick (K-D) test of rapid number naming is a reliable visual performance measure that is a sensitive sideline indicator of concussion when time scores worsen (lengthen) from...
fNIRS Differentiates Cognitive Workload Between Concussed Adolescents and Healthy Controls
Introduction Concussion remains a clinical diagnosis based on subjective and non-specific symptoms with additional supporting assessments, such as neurocognitive testing and, more recently, physical examination findings. However, there are...
Sideline Concussion Assessment: The King-Devick Test in Canadian Professional Football
Reasons for Study Sideline assessment tools are an important component of concussion evaluations. To date there has been little data evaluating the clinical utility of these tests in professional...
Concussion Recovery Phase Affects Vestibular and Oculomotor Symptom Provocation
Vestibular and oculomotor testing is emerging as a valuable assessment in sport-related concussion (SRC). However, their usefulness for tracking recovery and guiding return-to-play decisions remains unclear. Therefore, the purpose...
Validity of low-resolution eye-tracking to assess eye movements during a rapid number naming task: performance of the eyetribe eye tracker
Objective: To evaluate the performance of the EyeTribe compared to the EyeLink for eye movement recordings during a rapid number naming test in healthy control participants. Background: With the...
Baseline King–Devick scores for adults are not generalizable; however, age and education influence scores
Objective: To establish normative values for the King–Devick (K–D) test to be used as a reference for determining impairment related to concussion when individual baseline scores are lacking. Method:...
Sport Concussion and the Female Athlete
Sport concussion (SC) has emerged as a major health concern in the medical community and general public owing to increased research and media attention, which has primarily focused on male athletes. Female athletes have an...