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On-Screen Visual Feedback Effect on Static Balance Assessment with Perturbations.

Ruben Valenzuela1, Javier Corral1, Mikel Diez1

  • 1Bilbao School of Engineering, University of the Basque Country UPV/EHU, 48013 Bilbao, Spain.

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Summary

The OREKA platform analyzes body balance and center of pressure (COP) during tilt exercises. Real-time visual feedback significantly impacts balance control, revealing postural variations in healthy individuals.

Keywords:
balance assessmentcentre of pressureforce plateparallel manipulatorposturography

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Area of Science:

  • Biomechanics
  • Human Movement Science
  • Rehabilitation Engineering

Background:

  • Assessing postural control is crucial for understanding body balance dynamics.
  • Existing methods may lack the precision or versatility to capture complex balance behaviors.
  • Novel platforms are needed to investigate the effects of perturbations and feedback on balance.

Purpose of the Study:

  • To evaluate the novel mobile dynamometric platform, OREKA, for analyzing center of pressure (COP) behavior during tilt exercises.
  • To investigate the impact of real-time visual feedback on COP motion and balance indicators.
  • To identify postural control variations in clinically healthy individuals using the OREKA platform.

Main Methods:

  • Utilized the OREKA platform, a parallel manipulator mechanism enabling multi-axis rotation and vertical translation.
  • Conducted experimental campaigns with participants performing various tilt motion exercises.
  • Collected and analyzed center of pressure data, assessing balance indicators with and without visual feedback.

Main Results:

  • The OREKA platform effectively analyzed COP behavior during dynamic balance tasks.
  • Real-time visual feedback demonstrated a significant impact on users' balance control strategies.
  • Distinct variations in postural control were observed among healthy participants.

Conclusions:

  • The OREKA platform shows significant potential for practical application in balance assessment.
  • Visual feedback availability is a key factor influencing balance control under rotational perturbations.
  • Findings provide fundamental insights into body balance dynamics and highlight the need for further research.