Inertial Sensing Based Assessment Methods to Quantify the Effectiveness of Post-Stroke Rehabilitation

Sensors

Hsin-Ta Li²  Jheng-Jie Huang²  Chien-Wen Pan¹  Heng-I. Chi²  Min-Chun Pan² 

[1] Hsinchu Air Base, Hsinchu City 300, Taiwan; E-Mail:;Graduate Institute of Biomedical Engineering, National Central University, Jhongli 320, Taiwan; E-Mails:

关键词: inertial measurement;    stroke rehabilitation evaluation;    quantitative assessment scale;   

DOI  :  10.3390/s150716196

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.