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Interlimb coordination in Parkinson’s Disease is affected by a visuospatial dual task

View ORCID ProfileAllen Hill, View ORCID ProfileJulie Nantel
doi: https://doi.org/10.1101/2022.07.15.500215
Allen Hill
aSchool of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
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Julie Nantel
aSchool of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
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  • For correspondence: jnantel@uottawa.ca
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Abstract

Parkinson’s disease (PD) leads to reduced spatial and temporal interlimb coordination during gait as well as reduced coordination in the upper or lower limbs. While multi-tasking when walking is common during real world activities, the impact of dual-tasking (DT) on intra and interlimb coordination of both lower and upper limbs when walking in people with PD remains unknown. Seventeen volunteers with mild to moderate PD (11M, 65±8 years, 173±8 cm, 74±20 kg, UPDRS III 10±5) participated in gait trials in an Extended-CAREN system, which includes a treadmill, 12-camera Vicon motion capture system, and a 180° field-of-view virtual reality projection screen. Participants completed a 3 min walking trial, and a 2 min visuospatial word recognition DT trial at their preferred walking pace. Single and DT were compared with a paired t-test. During DT, we found the less affected (LA) shoulder ROM decreased by 1.5°, the LA shoulder peak flexion decreased by 1.1°, the LA hip ROM decreased by 0.99° (p<.04, gav>.12), and hip ROM asymmetry decreased by 0.96° (p=.01, gav=.24). Upper and lower intralimb phase variability on the LA side increased 3.8° and 0.94°, respectively, during DT (p<.03, gav>.28). These results suggest that during normal single-task gait, people with PD use attentional resources to compensate for deficits in spatial and temporal coordination. Furthermore, our results may indicate that compensating for deficits in coordination is a higher priority than minimizing asymmetry in gait.

Summary statement A dual-task during gait disrupted attempts to compensate for spatial and temporal coordination deficits on the less affected side in a group of people with mild to moderate Parkinson’s disease.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-ND 4.0 International license.
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Posted July 18, 2022.
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Interlimb coordination in Parkinson’s Disease is affected by a visuospatial dual task
Allen Hill, Julie Nantel
bioRxiv 2022.07.15.500215; doi: https://doi.org/10.1101/2022.07.15.500215
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Interlimb coordination in Parkinson’s Disease is affected by a visuospatial dual task
Allen Hill, Julie Nantel
bioRxiv 2022.07.15.500215; doi: https://doi.org/10.1101/2022.07.15.500215

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