@article{ref1,
title="Detection of acute and long-term effects of concussion: dual-task gait balance control vs. computerized neurocognitive test",
journal="Archives of physical medicine and rehabilitation",
year="2018",
author="Howell, David R. and Osternig, Louis R. and Chou, Li-Shan",
volume="99",
number="7",
pages="1318-1324",
abstract="OBJECTIVE: Our aim was to examine the acute (within 72 hours of injury) and long-term (2 months post-injury) independent associations between objective dual-task gait balance and neurocognitive measurements among adolescents and young adults with a concussion and matched controls. <br><br>DESIGN: Longitudinal case-control SETTING: Motion analysis laboratory PARTICIPANTS: Participants who sustained a concussion underwent a dual-task gait analysis and computerized neurocognitive testing within 72 hours of injury and again 2 months later. Uninjured controls also completed the same test protocol in similar time increments. INTERVENTIONS: Not applicable MAIN OUTCOME MEASURES: We compared dual-task gait balance control and computerized neurocognitive test performance between groups using independent samples t-tests. Multivariable binary logistic regression models were then constructed for each testing time to determine the association between group membership (concussion vs. control), dual-task gait balance control, and neurocognitive function. <br><br>RESULTS: Ninety-five participants completed the study, 51 who sustained a concussion (mean age= 17.5±3.3 years; 71% male) and 44 controls (mean age= 17.7±2.9 years; 72% male). Medial-lateral center-of-mass displacement during dual-task gait was independently associated group membership at the initial test (adjusted odds ratio [aOR]= 2.432, 95% CI= 1.269-4.661) and 2 month follow-up test (aOR= 1.817, 95% CI= 1.014-3.256) tests. Visual memory composite scores were significantly associated with group membership at the initial hour post-injury time point (aOR= 0.953, 95% CI= 0.833-0.998). However, the combination of computerized neurocognitive test variables did not predict dual-task gait balance control for concussion participants, and no single neurocognitive variable was associated with dual-task gait balance control at either testing time. <br><br>CONCLUSIONS: Dual-task assessments concurrently evaluating gait and cognitive performance may allow for the detection of persistent deficits beyond those detected by computerized neurocognitive deficits alone.<br><br>Copyright © 2018 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.<p /> <p>Language: en</p>",
language="en",
issn="0003-9993",
doi="10.1016/j.apmr.2018.01.025",
url="http://dx.doi.org/10.1016/j.apmr.2018.01.025"
}