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Related Experiment Video

Updated: May 19, 2026

Experimental Methods to Study Human Postural Control
08:12

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

Biofeedback improves postural control recovery from multi-axis discrete perturbations.

Kathleen H Sienko1, M David Balkwill, Conrad Wall

  • 1Massachusetts Institute of Technology, Cambridge, MA, USA. sienko@umich.edu

Journal of Neuroengineering and Rehabilitation
|August 7, 2012
PubMed
Summary

Multidirectional vibrotactile biofeedback improves postural stability in individuals with vestibular deficits by enhancing recovery and steady-state responses during discrete support surface perturbations.

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Area of Science:

  • Biomechanics
  • Neuroscience
  • Rehabilitation Engineering

Background:

  • Multi-axis vibrotactile feedback aids individuals with vestibular deficits in managing postural sway during continuous perturbations.
  • Previous research indicates reduced root-mean-square (RMS) sway and improved sway area with this feedback.

Purpose of the Study:

  • To investigate the impact of multidirectional vibrotactile biofeedback on postural stability.
  • To assess this effect during discrete, rather than continuous, support surface perturbations.

Main Methods:

  • Six subjects with vestibular deficits participated, using a vibrotactile device with a 3x16 tactor array on the torso.
  • Postural responses were measured using force plate and inertial measurement units during eight perturbation directions.

More Related Videos

A Vibrotactile Feedback Device for Seated Balance Assessment and Training
09:13

A Vibrotactile Feedback Device for Seated Balance Assessment and Training

Published on: January 20, 2019

Related Experiment Videos

Last Updated: May 19, 2026

Experimental Methods to Study Human Postural Control
08:12

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

A Vibrotactile Feedback Device for Seated Balance Assessment and Training
09:13

A Vibrotactile Feedback Device for Seated Balance Assessment and Training

Published on: January 20, 2019

  • Data were analyzed across ballistic, recovery, and steady-state phases under four feedback conditions and a no-feedback control.

    • Main Results:

    • Vibrotactile feedback significantly improved recovery and steady-state postural control, reducing return time and increasing return velocity.
    • Feedback decreased root mean square (RMS) roll and pitch sway and increased time within the stability zone.
    • All tested feedback configurations yielded comparable improvements, with erroneous feedback impairing performance.

    Conclusions:

    • Vibrotactile feedback positively impacts postural stability in individuals with vestibular deficits during discrete perturbations.
    • The torso-tactor array effectively aids active processing of sensory information for postural control.
    • No single spatial resolution of the tactor display was found to be optimal for all standing tasks.