Demonstration and test cards for the King–Devick (K–D) Test: a rapid sideline screening tool for sports-related concussion based on the time to perform rapid. Background The King-Devick (KD) test is an objective clinical test of eye movements that has been used to screen for concussion. A rapid, cost-effective, and reliable tool that facilitates diagnosis of concussion is needed. The King-Devick (K-D) test is a vision-based tool of rapid number.

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The King-Devick test as a determinant of head trauma and concussion in boxers and MMA fighters

Epidemiology of concussion in collegiate and high school football players. Results Characteristics and K—D testing kng for the study cohort are shown in Table 1.

Injury concussin is coming to a head. Chronic traumatic encephalopathy in the National Football League. Athletes Concussion Reporting Game Plan: The K—D test is portable and easy to implement on the sidelines. In a previous study 24 both male and female athletes with concussion were included whereas the current study only included male football players.

The King-Devick test as a determinant of head trauma and concussion in boxers and MMA fighters

DevickOD, S. Pre-season K—D test 1, median range.

Open in a separate window. Chronic traumatic encephalopathy in athletes: It is estimated that sports-related concussion afflicts 3. Neurometabolic changes in the acute phase after sports concussions correlate with symptom severity.


Concussion signs and symptoms may develop and evolve over time, particularly within the first hours following injury. Maguire serves on the editorial boards of OphthalmologyCorneaand Current Opinion in Ophthalmology ; and receives research support from Inspire Pharmaceuticals, Pfizer Inc.

The King–Devick test for sideline concussion screening in collegiate football

Neurodegenerative causes of death among retired National Football League players. All athletes who sustained a concussion during the playing season exhibited defects in their sideline K—D tests. Abstract Purpose Sports-related concussion has received increasing attention as a result of neurologic sequelae seen among athletes, highlighting the need for a validated, rapid screening tool.

From the Departments of Neurology K. Spectrum of acute clinical characteristics of diagnosed concussions in college athletes wearing instrumented helmets. However, there was no overlap in the distribution of changes in scores from prefight to postfight, with a substantial gap between the worst change in the no head trauma group and the best change in the head trauma group.

This article has been tesg by other articles in PMC. Concussions in amateur rugby union identified with the use of a rapid visual screening tool. Among participants with head trauma, those with vs without LOC were compared similarly. Click here for a transcript of today’s news conference.

In fact, worsening by 5 seconds or more was a distinguishing characteristic noted only among the participants with head trauma. Post-season K—D test, median range. Table 1 Characteristics of the collegiate athlete cohort and K—D test scores.


The King–Devick test for sideline concussion screening in collegiate football

After the individual 9-minute sparring sessions, each boxer was retested once using the K-D test. Errors committed in this study were minimal with one concussed athlete making a single kin.

The K-D test is based on measurement of the speed of rapid number naming. The epidemiology of sports-related traumatic brain injuries in the United States: Box plots show the distributions of postfight King-Devick K-D time scores and changes in scores from prefight to postfight in participants with vs without head trauma or loss of consciousness LOC The lines in the box represent the medians, and boxes delineate the interquartile range 25th—75th percentiles.

Kihg determined if athletes with head trauma and loss of consciousness during matches differed in terms of their postfight K-D time scores or with regard to changes deviick scores from prefight to postfight. Curr Neurol Concusssion Rep. Subjects and methods Study participants For this study of collegiate athletes, athletes were enrolled at the time of pre-season physical examinations for the — season.

Clin J Sport Med. The occult aftermath of boxing.

Acute effects and recovery time following concussion in collegiate football players.