Objective real-world mobility patterns in Parkinson's disease: Driving and walking after levodopa dosing

Area of Science:

• Neuroscience
• Movement Disorders
• Pharmacology

Background:

• Levodopa is the cornerstone therapy for Parkinson's disease (PD) motor symptoms.
• Real-world impact of levodopa on daily activities throughout the day is not fully understood.

Purpose of the Study:

• To investigate the influence of levodopa dosing on walking and driving in individuals with PD using continuous real-world monitoring.
• To analyze the temporal effects of levodopa on basic and instrumental activities of daily living (ADLs).

Main Methods:

• A four-week observational study involving 24 early-stage PD participants.
• Continuous monitoring of walking and driving via in-vehicle sensors, actigraphy, and medication logs.
• Analysis of activity in 30-minute intervals up to 4 hours post-dose using mixed-effects models.

Main Results:

• Morning levodopa doses significantly enhanced activity, peaking 120-150 minutes post-dose.
• Afternoon doses showed reduced benefits, with driving likelihood declining by 120 minutes and walking by 180 minutes.
• Greater motor symptom severity correlated with reduced walking but not driving.

Conclusions:

• Real-world data demonstrate distinct diurnal patterns in levodopa's efficacy for PD patients.
• Morning levodopa administration provides greater mobility benefits compared to afternoon doses.
• Optimizing medication timing and utilizing continuous monitoring could enhance Parkinson's disease management.