Still Functional but Limited Postural Adaptation for Individuals With Parkinson's Disease in Goal-Directed Visual
Cédrick T Bonnet1, Yann-Romain Kechabia1,2, Arnaud Delval3,4
1Univ. Lille, CNRS, UMR 9193 - SCALab - Sciences Cognitives et Sciences Affectives, Lille, France.
The European Journal of Neuroscience
|December 26, 2024
Summary
Parkinson's disease (PD) patients show greater postural sway but can adapt their balance during visual tasks. Rehabilitation focusing on visual attention may benefit PD patients.
Area of Science:
- Neuroscience
- Biomechanics
- Rehabilitation Science
Background:
- Parkinson's disease (PD) is characterized by postural instability and visual attention deficits.
- Understanding adaptive postural control in PD is crucial for developing effective rehabilitation strategies.
Purpose of the Study:
- To investigate the adaptive postural control of PD patients during a goal-directed visual task.
- To compare the postural sway and adaptation of PD patients with age-matched controls.
Main Methods:
- 39 PD patients and 40 controls performed a visual search task and a free-viewing task.
- Center of pressure (COP) movements, body sway (head, back), and pupil dilatation were analyzed.
- Participants viewed ecological images at a 100° visual angle.
Main Results:
- PD patients exhibited significantly greater COP and body sway than controls in both tasks.
- The difference in sway between tasks was more pronounced in PD patients, indicating greater relative adaptation.
- Despite increased sway, PD patients demonstrated the capacity for adaptive postural control.
Conclusions:
- Parkinson's disease patients can exhibit adaptive postural control during goal-directed visual tasks.
- Rehabilitation strategies incorporating visual attentional focus may enhance balance and mobility in PD.
- Findings highlight the importance of visual-motor integration in Parkinson's disease management.
