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Annals of Neurology: Parkinson's gait disorder, cortical activity may be involved in compensatory gait improvement

 Last Update: 2022-03-05
 Source: Internet
 Author: User

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Gait disturbance is a common disabling manifestation of Parkinson's disease

People with Parkinson's disease generally have more difficulty walking in an automatic manner (ie, not paying attention) than in producing goal-directed behaviors (often facilitated by the presence of explicit external or sometimes internal stimuli)

They hypothesized that different patterns of cortical activation would emerge for each different type of compensatory strategy

They included 18 participants with Parkinson's disease and gait impairment

To control for effects on sensory processing of cues, they calculated changes in relative power as the difference in power spectral density between walking and standing in each condition

They found that use of all three compensatory strategies elicited a decrease in beta-band activity in sensorimotor areas relative to uncued gait, indicating increased cortical activation

Occipital alpha-band activity decreased in the presence of external and internal cues and increased during action observation

The significance of this study lies in the discovery that the application of compensatory strategies results in changes in cortical activity compared to uncued gait, which cannot be fully attributed to cued modalities of sensory processing

Application of compensatory strategies results in changes in cortical activity compared to silent gait that cannot be fully attributed to cued modalities of sensory processing

Solis‐Escalante T, Nonnekes J.
Cortical Correlates of Gait Compensation Strategies in Parkinson Disease.
Annals of Neurology

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