Summary: A clinical reaction time test that invloves grasping a falling weighted measuring stick RT(clin) had similar sensitivity and specificity to other commonly used concussion assessment tools. 28 concussed athletes and 28 non-concussed control team-mates completed RT(clin) assessments at baseline and within 48 h of injury. Sensitivity and specificity were maximised when a critical change value of 0 ms was applied (ie, any increase in RT(clin) from baseline was interpreted as abnormal), which corresponded to a sensitivity of 75%, specificity of 68% and a 65% reliable change confidence level. These values are at least as good as those previously described for ImPACT and other computerized neurocognitive assessment tools. Given its simplicity, low cost and minimal time requirement, RT(clin) should be considered a viable component of the sports medicine provider's multifaceted concussion assessment battery.
Effect of sport-related concussion on clinically measured simple reaction time
Citation: Eckner, JT, Kutcher, JS, Broglio, SP and Richardson, JK. 2013. Effect of sport-related concussion on clinically measured simple reaction time. Br J Sports Med