Relationship Between Posturography, Clinical Balance and Executive Function in Parkinson´s Disease
Carolina de Oliveira Souza1,2,3, Mariana Callil Voos3,4, Alessandra Ferreira Barbosa3,4
1a Movement Disorders Clinic, Department of Neurology , Clinics Hospital of University of São Paulo, School of Medicine , São Paulo , Brazil.
Journal of Motor Behavior
|April 24, 2018
Summary
Postural control in Parkinson´s disease (PD) is linked to executive functions. Specific dynamic posturography tasks, like stepping over obstacles, correlate with cognitive abilities crucial for balance.
Area of Science:
- Neurology
- Biomechanics
- Cognitive Science
Background:
- Parkinson's disease (PD) significantly impacts motor control, including balance.
- Executive function deficits are common in PD and may influence postural stability.
Purpose of the Study:
- To investigate the relationship between posturography measures, clinical balance assessments, and executive function tests in individuals with PD.
- To determine if specific posturography tasks can reflect cognitive-motor integration relevant to PD.
Main Methods:
- Seventy-one participants with PD underwent static and dynamic posturography.
- Clinical balance was assessed using Berg Balance Scale, MiniBESTest, and Timed Up and Go (TUG) test.
- Executive function was evaluated via Trail Making Test (TMT) and semantic verbal fluency.
Main Results:
- Dynamic posturography measures of stepping over an obstacle (movement time, body weight transfer) showed moderate correlations with TUG, TMT part B, and semantic verbal fluency (r > 0.40, p < 0.05).
- Shorter obstacle-stepping movement times and higher body weight transfer were associated with better performance in TUG, TMT part B, and verbal fluency.
- These findings suggest that tasks involving stepping over obstacles tap into executive functions affected by PD.
Conclusions:
- Dynamic posturography, particularly obstacle negotiation, provides insights into the interplay between executive function and balance in Parkinson's disease.
- Assessing executive function through specific postural tasks may enhance the understanding and evaluation of balance deficits in PD.
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