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An Instrumented Pull Test to Characterize Postural Responses
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Postural control in Parkinson's disease.

Jackeline Yumi Fukunaga1, Rafaela Maia Quitschal1, Flávia Doná2

  • 1Post-Graduate Program in Human Communication Disorders, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.

Brazilian Journal of Otorhinolaryngology
|December 3, 2014
PubMed
Summary

Parkinson's disease patients exhibit significant postural balance deficits. Tetrax™ posturography revealed abnormalities in weight distribution, fall index, and synchronization, impacting mobility.

Keywords:
Doença de ParkinsonEquilíbrio posturalParkinson diseasePostural balanceTestes de função vestibularVestibular function tests

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Area of Science:

  • Neurology
  • Biomechanics
  • Gerontology

Background:

  • Postural instability is a primary disabling symptom in Parkinson's disease (PD).
  • Understanding balance impairments is crucial for managing PD progression and patient quality of life.

Purpose of the Study:

  • To quantitatively assess postural balance in individuals with Parkinson's disease.
  • To identify specific posturographic markers associated with balance deficits in PD.

Main Methods:

  • A comparative study involving 30 Parkinson's disease patients and a control group.
  • Utilized Tetrax™ interactive balance system posturography for objective balance assessment.

Main Results:

  • Parkinson's disease patients demonstrated a higher weight distribution index and fall index.
  • Abnormalities in Fourier transformation (low-medium frequencies) and reduced synchronization (right/left, toe/heel) were observed in PD patients.
  • These findings indicate significant differences in postural control strategies between PD patients and controls.

Conclusions:

  • Postural imbalance in Parkinson's disease is characterized by specific quantifiable abnormalities.
  • Tetrax™ posturography effectively identifies these abnormalities, including weight distribution, synchronization, Fourier transformation, and fall indices.
  • These objective measures can aid in the assessment and management of balance disorders in Parkinson's disease.