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Related Experiment Video

Updated: May 6, 2026

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
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Postural inflexibility in PD: does it affect compensatory stepping?

Katrijn Smulders1, Rianne A Esselink2, Bert J De Swart3

  • 1Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, Nijmegen, The Netherlands; HAN University of Applied Sciences, Research Group Neurorehabilitation, Nijmegen, The Netherlands.

Gait & Posture
|November 6, 2013
PubMed
Summary
This summary is machine-generated.

Parkinson's disease patients showed no deficit in switching balance strategies, but had poorer stepping and adaptation compared to controls. Freezing of gait patients performed worse overall.

Keywords:
Freezing of gaitParkinson's diseasePostural instabilityPostural setSet switching

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Area of Science:

  • Neuroscience
  • Motor Control
  • Human Movement Science

Background:

  • Parkinson's disease (PD) is characterized by impaired postural responses to environmental cues.
  • It remains unclear if this inflexibility extends to compensatory stepping strategies for balance recovery.

Purpose of the Study:

  • To investigate whether Parkinson's disease patients exhibit a deficit in switching between postural response strategies (feet-in-place vs. stepping).
  • To compare stepping performance and adaptability between PD patients and healthy controls, and between PD patients with and without freezing of gait (FOG).

Main Methods:

  • Participants performed balance recovery tasks involving platform translations, requiring either feet-in-place (FiP) or stepping responses.
  • Switch trials (FiP to step) were compared with non-switch trials (step to step).
  • Stepping performance (execution, number of steps) and trial-by-trial improvement were analyzed in 51 PD patients and 22 controls, including subgroups of PD with FOG (PD-FOG) and without FOG (PD-noFOG).

Main Results:

  • Switching postural sets did not reveal a deficit in PD patients or controls, nor between PD-FOG and PD-noFOG subgroups.
  • PD patients demonstrated overall poorer stepping performance than controls, with PD-FOG performing worse than PD-noFOG.
  • PD patients, especially PD-FOG, showed less improvement with repetitive stepping trials compared to controls, suggesting impaired adaptation.

Conclusions:

  • Parkinson's disease patients do not exhibit a specific deficit in switching between postural response strategies.
  • Impaired trial-by-trial adaptation of stepping, rather than a switching deficit, may contribute to balance problems in PD.
  • Poorer stepping performance and adaptation in PD, particularly in those with FOG, highlight the need for targeted interventions.