Background: It is estimated that 45 million persons between the ages of 5 and 19 years participate in some form of athletic activity. It is further estimated that 5%...
Objective: Sport-related concussion (SRC) can result in impaired oculomotor function. Oculomotor performance, measured utilizing the King-Devick/Eye Tracking test (K-D/ET), is reported to be able to identify sub-optimal brain function....
Background: Concussions have been increasingly reported over the past decade, but the reported incidence likely minimizes the actual numbers of people affected. Associated symptoms include emotional, somatic, and cognitive...
Objective: To determine if native English speakers (NES) perform differently compared to non-native English speakers (NNES) on a sideline-focused rapid number naming task. A secondary aim was to characterize...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...