Related Experiment Video
Updated: May 21, 2026

A Human-machine-interface Integrating Low-cost Sensors with a Neuromuscular Electrical Stimulation System for Post-stroke Balance Rehabilitation
Published on: April 12, 2016
Static postural balance study in patients with vestibular disorders using a three dimensional electromagnetic sensor
David Greco Varela1, Jose Ailton Oliveira Carneiro, José Fernando Colafêmina
1Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto/SP, Brazil. dgvarelabr@yahoo.com.br
A new 3D electromagnetic sensor system reliably measures body sway in individuals with vestibular dysfunction. This advanced posturography method provides crucial data for assessing balance and aiding in diagnosis.
Area of Science:
- Neuroscience
- Biomedical Engineering
- Vestibular System Research
Background:
- Assessing the vestibular-ocular reflex is vital but often insufficient for comprehensive evaluation.
- Tridimensional electromagnetic sensor systems offer a novel approach to posturography.
Purpose of the Study:
- To evaluate body sway in healthy subjects and those with vestibular dysfunctions using a 3D system.
- To assess individuals with positive Dix Hallpike and Epley maneuvers and other vestibular impairments.
Main Methods:
- Prospective study design.
- Involved 23 healthy women, 15 with peripheral vestibular dysfunction, and 10 with positive Epley and Dix Hallpike maneuvers.
- Tests included eyes open/closed on stable/unstable surfaces.
Main Results:
- Significant differences (p < 0.01) in body sway were observed between control and peripheral vestibular dysfunction groups.
- Specific variables showed significant differences across all positions.
- Individuals with positive maneuvers exhibited significant sway differences, particularly on unstable surfaces.
Conclusions:
- The 3D electromagnetic sensor system effectively provides reliable body sway information.
- This technology enhances the assessment of balance in individuals with vestibular conditions.
Related Concept Videos
The Vestibular System
Equilibrium and Balance

