Title :
iBalance-ABF: A Smartphone-Based Audio-Biofeedback Balance System
Author :
Franco, Carlos ; Fleury, A. ; Gumery, P.Y. ; Diot, B. ; Demongeot, Jacques ; Vuillerme, N.
Author_Institution :
AGIM Lab., UJF, La Tronche, France
Abstract :
This paper proposes an implementation of a Kalman filter, using inertial sensors of a smartphone, to estimate 3-D angulation of the trunk. The developed system monitors the trunk angular evolution during bipedal stance and helps the user to improve balance through a configurable and integrated auditory-biofeedback (ABF) loop. A proof-of-concept study was performed to assess the effectiveness of this so-called iBalance-ABF-smartphone-based audio-biofeedback system-in improving balance during bipedal standing. Results showed that young healthy individuals were able to efficiently use ABF on sagittal trunk tilt to improve their balance in the medial-lateral direction. These findings suggest that the iBalance-ABF system as a telerehabilitation system could represent a suitable solution for ambient assisted living technologies.
Keywords :
Kalman filters; gait analysis; mechanoception; smart phones; 3D angulation; ABF loop; Kalman filter; ambient assisted living technology; audio biofeedback balance system; bipedal stance; iBalance-ABF; inertial sensor; integrated auditory biofeedback loop; medial lateral direction; smartphone; trunk angular evolution; Accelerometers; Biological control systems; Biomedical monitoring; Estimation; Monitoring; Sensors; Training; Ambient assisted living; balance; biofeedback; inertial motion unit; smartphone; wearable device; Adult; Algorithms; Biofeedback, Psychology; Cellular Phone; Female; Humans; Male; Monitoring, Ambulatory; Postural Balance; Signal Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.2012.2222640
