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Computerized posturography, a development of the measuring system.

H Aalto1, I Pyykkö, J Starck

  • 1Institute of Occupational Health, Vantaa, Finland.

Acta Oto-Laryngologica. Supplementum
|January 1, 1988
PubMed
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This study introduces a computerized posturography system to measure body sway. Calf muscle vibration was used to assess postural control, providing insights into balance mechanisms.

Area of Science:

  • Biomechanics
  • Human motor control
  • Sensor technology

Background:

  • Postural control is crucial for stability.
  • Assessing body sway provides insights into balance.
  • Vibration can perturb postural control.

Purpose of the Study:

  • To develop and validate a computerized posturography system.
  • To quantify body sway parameters.
  • To investigate the effects of calf muscle vibration on postural control.

Main Methods:

  • A custom strain gauge force platform and amplifiers were used.
  • Body sway signals were digitized for analysis.
  • Calf muscles were vibrated to disturb posture.

Main Results:

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  • The system calculated average velocity, mean fore-aft/lateral sway, and maximal sway amplitude.
  • Vibration successfully disturbed postural control.
  • Filters were implemented to remove noise.

Conclusions:

  • The computerized posturography system effectively measures body sway.
  • Calf muscle vibration is a viable method to perturb postural control.
  • The system provides reliable data for balance research.