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Sensors 2010, 10(8), 7602-7620; doi:10.3390/s100807602
Article

Efficacy of a Computerized Sensor System for Evaluation and Training of Dizzy Patients

1,2,3,* , 1,3,4
,
2,5
,
2,6
,
4,*  and 1,2
1 Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital, 201 Shih-Pai, Road, Section 2, 11217, Taipei, Taiwan 2 School of Medicine, National Yang-Ming University, No. 155, Section 2, Linong Street, Taipei, 11221, Taiwan 3 Center for Geriatrics & Gerontology, Taipei Veterans General Hospital, 201 Shih-Pai Road, Section 2, 11217, Taipei, Taiwan 4 Institute of Physical Therapy and Assistive Technology, National Yang-Ming University, No. 155, Section 2, Linong Street, Taipei, 11221, Taiwan 5 Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, 201 Shih-Pai, Road, Section 2, 11217, Taipei, Taiwan 6 Department of Ophthalmology, Taipei Veterans General Hospital, 201 Shih-Pai, Road, Section 2, 11217, Taipei, Taiwan
* Authors to whom correspondence should be addressed.
Received: 28 May 2010 / Revised: 2 July 2010 / Accepted: 5 August 2010 / Published: 12 August 2010
(This article belongs to the Special Issue Sensors in Biomechanics and Biomedicine)
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Abstract

Patients with vestibular hypofunction often experience dizziness and unsteadiness while moving their heads. Appropriate sensors can effectively detect a patient’s dynamic visual acuity and associated body balance control. Forty-one vestibular-deficit patients and 10 normal individuals were invited to participate in this study. Questionnaires, clinical assessment scales and objective measures were evaluated on participants’ first visits. After 12 sessions of training, all scales were evaluated again on vestibular-deficit patients. The computerized system was composed of sensors, including a gyro and strain gauges, data acquisition accessories and LabVIEW software. Results revealed that the system could effectively distinguish normal subjects from subjects with vestibular deficits. In addition, after a rehabilitation program, subjects’ subjective and objective performances were significantly improved. Based on our results, we concluded that the present system, which uses a gyro and strain gauges, may provide an effective method for assessing and treating vestibular-deficit patients.
Keywords: dizziness; balance; dynamic visual acuity; center of pressure; vestibular hypofunction dizziness; balance; dynamic visual acuity; center of pressure; vestibular hypofunction
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Kao, C.-L.; Hsieh, W.-L.; Wang, S.-J.; Chen, S.-J.; Wei, S.-H.; Chan, R.-C. Efficacy of a Computerized Sensor System for Evaluation and Training of Dizzy Patients. Sensors 2010, 10, 7602-7620.

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