@article{ref1,
title="Mild traumatic brain injury is associated with increased dual task cost during ambulation: a preliminary study",
journal="American journal of physical medicine and rehabilitation",
year="2021",
author="Pinto, Shanti M. and Newman, Mark A. and Runyon, Michael S. and Gibbs, Michael and Grafton, Lori M. and Hirsch, Mark A.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="OBJECTIVE: To determine the impact of dual task (DT) conditions on mobility following mild traumatic brain injury (mTBI). <br><br>DESIGN: Eleven adults with mTBI within 1 week of injury and 10 age and sex matched healthy controls completed gait trials with a single task condition and 3 separate DT conditions: counting by 1 (low), serial subtraction by 3 (medium), and alternating letters and numbers (high). Dual task cost (DTC) was calculated as DTC = ([Dual task performance] - [Single task performance]) / [Single task performance] x 100%. <br><br>RESULTS: Participants with mTBI ambulated slower than control subjects (p-value <0.001). Significant differences in DTC were noted for both group (p-value <0.001) and dual task condition (p-value 0.005). DTC was greater for those with mTBI compared with controls with significant group differences for the low and high cognitive loads (p-value <0.05). Only 1/11 individuals with mTBI and 1/10 controls demonstrated gait speed <80 cm/s, which is predictive of community mobility, during any DT condition. DTC exceeded 11.9%, previously determined to be the minimal detectable change in healthy adults, for 9/11 individuals with mTBI compared with 3/10 controls. <br><br>CONCLUSION: DTC may be a more sensitive measure for impairment during DT conditions than gait speed following mTBI.<p /> <p>Language: en</p>",
language="en",
issn="0894-9115",
doi="10.1097/PHM.0000000000001830",
url="http://dx.doi.org/10.1097/PHM.0000000000001830"
}