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Sports concussion continues to come under increasing public and scientific scrutiny. Since the summer of 2009, 10 states have passed sports concussion legislation. Recent efforts by the American Academy of Neurology have underscored the need for an updated clinical approach to this injury.1 The concern for chronic neurologic impairment from playing contact sports is evident.2,3 Researchers continue to hunt, without success, for a biomechanical model of concussion that can provide a predictive threshold for injury.4 Currently, there are no objective diagnostic tests for concussion. Nonetheless, some sports teams and athletic programs rely inordinately on the use of abbreviated neuropsychological testing in an effort to provide data for clinical decisions.5
In this issue, Galetta et al.6 present the merits of the King-Devick (K-D) test as a method for identifying athletes with head trauma. The K-D test uses a simple paradigm that requires less than 2 minutes to complete, measuring the speed of reading aloud a series of single-digit numbers from left to right on 3 standardized test cards.7 This small study has several merits. The authors employed a prospective cohort study that evaluated an objective outcome measure with a high degree of test-retest reliability. Those conducting the test were at least partially …
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