"Consistent attendance and pedalling at a relatively high cadence may be key variables to PD symptom mitigation."
After all this time (approx. 15 years), it is still only a "maybe"!!!
Community-based high-intensity cycling improves disease symptoms in individuals with Parkinson's disease: A six-month pragmatic observational study (October 2022):
onlinelibrary.wiley.com/doi...
See also this thread about an earlier Cleveland Clinic study covering other aspects of the Pedalling for Parkinsons program: