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[Considerations on analysis time duration in a posturographic study in normal subjects].

G Paludetti1, M Rosignoli, R M Santarelli

  • 1Istituto di Clinica Otorinolaringoloiatrica, Università Cattolica del Sacro Cuore di Roma.

Acta Otorhinolaryngologica Italica : Organo Ufficiale Della Societa Italiana Di Otorinolaringologia E Chirurgia Cervico-Facciale
|July 1, 1990
PubMed
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Analysis time significantly impacts posturographic parameters. For eyes-open balance tests, 20 seconds is sufficient, while eyes-closed tests require 60 seconds for accurate assessment.

Area of Science:

  • Neurology
  • Biomechanics
  • Vestibular System

Background:

  • Posturography is crucial for assessing balance and identifying vestibular disorders.
  • Standardized analysis times are essential for reliable posturographic data.

Purpose of the Study:

  • To determine the optimal analysis duration for posturographic parameters under eyes-open and eyes-closed conditions.
  • To investigate the influence of analysis time on posturographic measurements in healthy subjects.

Main Methods:

  • Twenty-four healthy subjects underwent static posturography for 60 seconds.
  • Data were analyzed in 20-second intervals (0-20, 20-40, 40-60 seconds) with eyes open and closed.
  • Key parameters included average X, Y, R, Sway Path, Sway Area, and Ellipse Area.

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Main Results:

  • Eyes-open posturographic parameters showed no significant changes across time intervals.
  • Eyes-closed parameters demonstrated a significant decrease as analysis time progressed.
  • A minority of subjects (4/24) exhibited inverse behavior in eyes-closed conditions.

Conclusions:

  • Eyes-open posturography can be limited to 20 seconds.
  • Eyes-closed posturography should be extended to 60 seconds to capture dynamic changes.
  • Analysis time is a critical factor for detecting subtle alterations in posturographic parameters, potentially aiding in the diagnosis of vestibular pathologies.