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New Portable System for Measuring the Spasticity of Injury in Central Nervous System  

Song, Chul-Gyu (전북대 공대 전자정보공학부)
Seo, Jeong-Hwan (전북대 의학전문대학원 재활의학교실)
Han, Sang-Hyung (전북대 의학전문대학원 재활의학교실)
Kim, Keo-Sik (전북대 공대 대학원 전자정보공학부)
An, Yang-Su (전북대 공대 대학원 전자정보공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.6, 2009 , pp. 1180-1185 More about this Journal
Abstract
Spasticity is a velocity-dependent stretch reflex disorder of the body motor system developing after the injury of the central nervous system, in which certain muscles are continuously contracted involuntarily. Conventional methods such as the modified Ashworth scale, Spasm frequency scale, pendulum test and isokinetic dynamometer had some disadvantages: limitation in discriminating the increase of resistance, immovable and expensive device, not enough study parameters. Therefore, it is necessary to introduce clinically more useful instrument, which can produce objective data and are more convenient on spasticity measurement. Spasticity measuring methods were reviewed and a new measuring instrument was designed and introduced. The new measuring system is a portable spasticity-measurement system, which encompass various scopes of spasticity-related human signals such as electrophysiologic, kinematic and biomechanical data. Our device was designed in order to measure the joint angle, angular velocity, electromyographic signals and force. We suggest that this new system can diagnose the spasticity of the muscles, objectively.
Keywords
Spasticity; Portable system; Central nervous System; Stretch reflex;
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