alexa A Prototype Head-Motion Monitoring System for In-Home Vestibular Rehabilitation Therapy
ISSN: 2155-9538

Journal of Bioengineering & Biomedical Science
Open Access

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Research Article

A Prototype Head-Motion Monitoring System for In-Home Vestibular Rehabilitation Therapy

Pamela T. Bhatti1#*, Susan J. Herdman2, Siddarth Datta Roy1, Courtney D. Hall3,4 and Ronald J. Tusa5

1School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0250, USA

2Department of Rehabilitation Medicine, Emory University Atlanta, GA, 30322, USA

3James H. Quillen VA Medical Center, Mountain Home, TN 37684, USA

4Department of Physical Therapy, East Tennessee State University, Johnson City, TN, 37614, USA

5Department of Neurology, Emory University, Atlanta, GA 30322, USA

#P. Bhatti was supported in part by PHS Grant KL2 RR025009 from the Clinical and Translational Science Award program, National Institutes of Health, National Center for Research Resources

*Corresponding Author:
Pamela T. Bhatti
Assistant Professor
Department of Bioengineering
and Microelectronics/Microsystems
School of Electrical and Computer Engineering at
the Georgia Institute of Technology, USA
Tel: 404.385.3144
E-mail: [email protected]

Received Date: December 05, 2011; Accepted Date: January 06, 2012; Published Date: January 11, 2012

Citation: Bhatti PT, Herdman SJ, Roy SD, Hall CD,Tusa RJ (2012) A Prototype Head-Motion Monitoring System for In-Home Vestibular Rehabilitation Therapy. J Bioeng Biomed Sci S1: 009. doi: 10.4172/2155-9538.S1-009

Copyright: © 2012 Bhatti PT, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



This work reports the use of a head-motion monitoring system to record patient head movements while completing in-home exercises for vestibular rehabilitation therapy. Based upon a dual-axis gyroscope (yaw and pitch, ± 500-degrees/sec maximum), angular head rotations were measured and stored via an on-board memory card. The system enabled the clinician to document exercises at home. Several measurements were recorded in one patient with unilateral vestibular hypofunction: The total time of exercise for the week (118 minutes) was documented and compared with expected weekly exercise time (140 minutes). For gaze stabilization exercises, execution time of 60 sec was expected, and observed times ranged from 75-100 sec. An absence of rest periods between each exercise instead of the recommended one minute rest period was observed. Maximum yaw head velocities from approximately 100-350 degrees/sec were detected. A second subject provided feedback concerning the ease of use of the HAMMS device. This pilot study demonstrates, for the first time, the capability to capture the head-motion “signature” of a patient while completing vestibular rehabilitation exercises in the home and to extract exercise regime parameters and monitor patient adherence. This emerging technology has the potential to greatly improve rehabilitation outcomes for individuals completing in-home gaze stabilization exercises 1 .

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