Global cognitive function and processing speed are associated with gait and balance dysfunction in Parkinson's...

Area of Science:

• Neuroscience
• Gerontology
• Movement Disorders

Background:

• Parkinson's disease (PD) is a neurodegenerative disorder affecting motor control.
• Cognitive impairment is common in PD and impacts daily functioning.
• Understanding the link between cognition and motor performance is crucial for PD management.

Purpose of the Study:

• To investigate the relationship between global cognitive function and specific gait and balance parameters in Parkinson's disease patients.
• To determine if specific cognitive domains correlate with gait and balance performance in this cohort.

Main Methods:

• Fourteen Parkinson's disease patients underwent motor, gait, and balance assessments.
• Quantitative gait and balance data were collected using the APDM Mobility Lab™ system.
• Global and domain-specific cognitive tests were administered, with Spearman's rho and FDR correction used for correlation analysis.

Main Results:

• Global cognitive function strongly correlated with stride velocity, turn duration, steps to turn, and postural sway.
• Processing speed showed a significant association with turning measures (turn duration and steps to turn).
• No other significant associations were found between specific cognitive domains and gait domains.

Conclusions:

• This pilot study suggests a link between global cognitive function and pace-related gait and balance measures in Parkinson's disease.
• Impaired processing speed is associated with difficulties in turning among PD patients.
• Further research is warranted to explore these associations in larger cohorts.