Qualitative postural control differences in Idiopathic Parkinson’s Disease vs. Progressive Supranuclear Palsy with dynamic-on-static platform tilt

Abstract: Objectives
We aimed to assess whether postural abnormalities in Progressive Supranuclear Palsy (PSP) and Idiopathic Parkinson’s Disease (IPD) are qualitatively different by analysing spontaneous and reactive postural control.

Methods
We assessed postural control upon platform tilts in 17 PSP, 11 IPD patients and 18 healthy control subjects using a systems analysis approach.

Results
Spontaneous sway abnormalities in PSP resembled those of IPD patients. Spontaneous sway was smaller, slower and contained lower frequencies in both PSP and IPD as compared to healthy subjects. The amount of angular body excursions as a function of platform angular excursions (GAIN) in PSP was qualitatively different from both IPD and healthy subjects (GAIN cut-off value: 2.9, sensitivity of 94%, specificity of 72%). This effect was pronounced at the upper body level and at low as well as high frequencies. In contrast, IPD patients’ stimulus-related body excursions were smaller compared to healthy subjects. Using a systems analysis approach, we were able to allocate these different postural strategies to differences in the use of sensory information as well as to different error correction efforts.

Conclusions
While both PSP and IPD patients show abnormal postural control, the underlying pathology seems to be different.

Significance
The identification of disease-specific postural abnormalities shown here may be helpful for diagnostic as well as therapeutic discriminations of PSP vs. IPD

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch
• Notes: Clinical neurophysiology. - 129, 6 (2018) , 1137-1147, ISSN: 1872-8952

Contributors, Places and Time

• Event: Veröffentlichung
• (where): Freiburg
• (who): Universität
• (when): 2023
• Creator: Kammermeier, Stefan ; Maierbeck, Kathrin ; Dietrich, Lucia ; Plate, Annika ; Lorenzl, Stefan ; Singh, Arun ; Bötzel, Kai ; Maurer, Christoph
• Contributor: Universitätsklinikum Freiburg. Zentrum für Geriatrie und Gerontologie Freiburg

Further information

• DOI: 10.1016/j.clinph.2018.03.002
• URN: urn:nbn:de:bsz:25-freidok-1483016
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 25.03.2025, 1:54 PM CET