Parkinson’s patients who exercise over 8 hours weekly show slower disease progression, new study finds

Parkinson’s patients who exercise over 8 hours weekly show slower disease progression, new study finds

Parkinson’s patients engaging in over 8 hours of weekly physical activity showed significantly slower progression of both cognitive and motor symptoms compared to low-activity groups, with minimal cognitive decline (0.007 vs. 0.478 annual points) and reduced motor symptom worsening over five years.
A 7-year observational study by the University of Cincinnati tracked 294 mild-to-moderate Parkinson’s patients, measuring activity levels (self-reported) and symptom progression via annual motor and cognitive assessments.
Total weekly activity volume (not intensity) correlated with benefits—vigorous exercise and moderate activities (e.g., walking) were equally effective, emphasizing consistency and duration over intensity.
Self-reported data and observational design raise concerns about accuracy and reverse causation (e.g., milder patients may be more active). Results may not apply to severe cases, and causality cannot be confirmed without randomized trials.
The study highlights physical activity as a low-cost, accessible intervention to slow Parkinson’s progression, advocating for integrative care. Future research should validate findings with larger, diverse cohorts and explore biomarkers to understand exercise’s neuroprotective mechanisms.

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