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Cognitive Task Effects on Gait in Parkinson's Disease

This study compares the performance of healthy young and older adults with individuals with Parkinson's disease in single and dual-task settings of a 2-back cognitive task. Significant differences were found with Parkinson's disease individuals showing decreased accuracy in the dual-task compared to the single-task setting. The study suggests evidence of motor prioritization in Parkinson's disease. [177 words]

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Cognitive Task Effects on Gait in Parkinson's Disease

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  1. Figure 3. Percent correct on 2-back during both single- and dual-task settings for healthy young adults (HYA), healthy older adults (HOA), and individuals with Parkinson disease (PD). #Significant difference in percent correct of both HYA and HOA when compared with individuals with PD (p < 0.05) during single-task 2-back. *Significant decrease (p < 0.05) in percent correct in dual-task setting when compared with single-task setting in PD group. Percent correct during dual-task 2-back in PD (53%) was significantly equal to chance (50%) at 0.05. Nocera JR, Roemmich R, Elrod J, Altmann LJ, Hass CJ. Effects of cognitive task on gait initiation in Parkinson disease: Evidence of motor prioritization? J Rehabil Res Dev. 2013;50(5):699–708. http://dx.doi.org/10.1682/JRRD.2012.06.0114

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