Audio-biofeedback for balance improvement: an accelerometry-based system.
Journal article, 2005
This paper introduces a prototype audio-biofeedback system for balance improvement through the sonification using trunk kinematic information. In tests of this system, normal healthy subjects performed several trials in which they stood quietly in three sensory conditions while wearing an accelerometric sensory unit and headphones. The audio-biofeedback system converted in real-time the two-dimensional horizontal trunk accelerations into a stereo sound by modulating its frequency, level, and left/right balance. Preliminary results showed that subjects improved balance using this audio-biofeedback system and that this improvement was greater the more that balance was challenged by absent or unreliable sensory cues. In addition, high correlations were found between the center of pressure displacement and trunk acceleration, suggesting accelerometers may be useful for quantifying standing balance.
Adult
Aged
physiology
User-Computer Interface
rehabilitation
Biofeedback
Equipment Failure Analysis
methods
Pilot Projects
instrumentation
Postural Balance
Humans
instrumentation
physiology
Posture
Movement Disorders
Pressure
Acoustics
Acceleration
Psychology
Transducers
Equipment Design
Middle Aged
Author
Lorenzo Chiari
Marco Dozza
Chalmers, Applied Mechanics, Vehicle Safety
Angelo Cappello
Fay B Horak
Velio Macellari
Daniele Giansanti
IEEE Transactions on Biomedical Engineering
0018-9294 (ISSN) 15582531 (eISSN)
Vol. 52 12 2108-11Subject Categories
Medical Engineering
Other Social Sciences
Other Medical and Health Sciences
DOI
10.1109/TBME.2005.857673
PubMed
16366234