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Updated: Aug 29, 2025

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Normative data for rotational chair considering motion susceptibility.

Jiaodan Yu1, Yi Wan1, Jieli Zhao1

  • 1Ear Nose Throat (ENT) Institute and Department of Otorhinolaryngology, Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Fudan University, Shanghai, China.

Frontiers in Neurology
|September 8, 2022
PubMed
Summary

The Rotational Chair Test (RCT) reveals age impacts sinusoidal harmonic acceleration tests (SHAT), but not velocity step tests (VST) or visual suppression (VS). Motion susceptibility, particularly with comorbid migraine and motion sickness, affects vestibular function metrics.

Keywords:
motion sickness (MS)rotational chair testsinusoidal harmonic acceleration test (SHAT)velocity step test (VST)velocity storage mechanism (VSM)visual suppression (VS)

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Area of Science:

  • Neuroscience
  • Vestibular System Function
  • Otolaryngology

Background:

  • The Rotational Chair Test (RCT) is crucial for assessing vestibular functionality.
  • Key components include the sinusoidal harmonic acceleration test (SHAT), velocity step test (VST), and visual suppression (VS).
  • Understanding age-related changes and motion susceptibility effects on RCT metrics is vital.

Purpose of the Study:

  • Establish normative values for the Rotational Chair Test across different age groups.
  • Investigate the influence of motion susceptibility (history of motion sickness or migraine) on RCT metrics.

Main Methods:

  • 109 healthy subjects (20-59 years) were categorized into motion sickness, migraine, comorbidity, and control groups.
  • Control group subjects were further divided into four age strata (20-59 years).
  • All participants underwent SHAT, VST, and VS, with metrics like gain, phase, and asymmetry recorded.

Main Results:

  • VST and VS showed no significant differences across groups or age categories.
  • SHAT revealed significant age-related differences in VOR gain (at 0.01 Hz) and phase (0.08-0.64 Hz).
  • Migraine and comorbidity groups exhibited lower VOR phase lead at 0.64 Hz compared to controls.

Conclusions:

  • Age influences SHAT results, particularly VOR gain at low frequencies and phase at higher frequencies, but not VST or VS.
  • Comorbid motion sickness and migraine indicate abnormal velocity storage mechanisms.
  • SHAT is more sensitive than VST for detecting motion susceptibility, highlighting the need to consider phase bias in RCT assessments.