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Active and Passive Cycling Decrease Subthalamic β Oscillations in Parkinson's Disease
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DOI：10.1002/mds.29632.png)
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Background: Preserved cycling capabilities in patients with Parkinson's disease, especially in those with freezing of gait are still poorly understood. Previous research with invasive local field potential recordings in the subthalamic nucleus has shown that cycling causes a stronger suppression of beta oscillations compared to walking, which facilitates motor continuation.Methods: We recorded local field potentials from 12 patients with Parkinson's disease (six without freezing of gait, six with freezing of gait) who were bilaterally implanted with deep brain stimulation electrodes in the subthalamic nucleus. We investigated beta (13-30 Hz) and high gamma (60-100 Hz) power during both active and passive cycling with different cadences and compared patients with and without freezing of gait. The passive cycling experiment, where a motor provided a fixed cadence, allowed us to study the effect of isolated sensory inputs without physical exercise.Results: We found similarly strong suppression of pathological beta activity for both active and passive cycling. In contrast, there was stronger high gamma band activity for active cycling. Notably, the effects of active and passive cycling were all independent of cadence. Finally, beta suppression was stronger for patients with freezing of gait, especially during passive cycling.Conclusions: Our results provide evidence for a link between proprioceptive input during cycling and beta suppression. These findings support the role of continuous external sensory input and proprioceptive feedback during rhythmic passive cycling movements and suggest that systematic passive mobilization might hold therapeutic potential. (c) 2023 International Parkinson and Movement Disorder Society.
Keyword:
subthalamic nucleus
electrophysiology
movement disorders
期刊
IF:
7.6
论文数:
1.1W
被引数:
3.3W
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