Portable measurement system of the spasticity based on the K-means clustering algorithm of the tonic stretch reflex threshold

Conventional clinical scales used for the evaluation of the spasticity have some limitations, and their reliability remains controversial. The aim of this study is to develop a portable spasticity measurement system for quantifying the grade of spasticity based on the K-means clustering algorithm of the tonic stretch reflex threshold (TSRT). Fifteen stroke patients (age: 63.5±15.6) participated in the study. As a result, there was a strong negative correlation (r=-0.95, r=0.90, p<0.05) between the spasticity level and TSRTs. This result showed that our system could be made clinically available for the more reliable discrimination of the spasticity level, compared to conventional scales..