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Sensors (Basel) ; 15(7): 16196-209, 2015 Jul 06.
Article in English | MEDLINE | ID: mdl-26153769

ABSTRACT

In clinical settings, traditional stroke rehabilitation evaluation methods are subjectively scored by occupational therapists, and the assessment results vary individually. To address this issue, this study aims to develop a stroke rehabilitation assessment system by using inertial measurement units. The inertial signals from the upper extremities were acquired, from which three quantitative indicators were extracted to reflect rehabilitation performance during stroke patients' movement examination, i.e., shoulder flexion. Both healthy adults and stroke patients were recruited to correlate the proposed quantitative evaluation indices and traditional rehab assessment scales. Especially, as a unique feature of the study the weight for each of three evaluation indicators was estimated by the least squares method. The quantitative results demonstrate the proposed method accurately reflects patients' recovery from pre-rehabilitation, and confirm the feasibility of applying inertial signals to evaluate rehab performance through feature extraction. The implemented assessment scheme appears to have the potential to overcome some shortcomings of traditional assessment methods and indicates rehab performance correctly.


Subject(s)
Monitoring, Physiologic/instrumentation , Stroke Rehabilitation , Upper Extremity/physiopathology , Aged , Equipment Design , Humans , Male , Monitoring, Physiologic/methods , Outcome Assessment, Health Care , Range of Motion, Articular
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