Title :
Time-course analysis of motor unit firing patterns in stroke patients using noninvasive multielectrode electromyography
Author :
Sun, Tzyh-Yi ; Chen, Jia-Jin ; Lin, Thy-Sheng
Author_Institution :
Inst. of Biomed. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
fDate :
30 Oct-2 Nov 1997
Abstract :
The aim of this research is to apply the surface motor unit action potentials (MUAPs) measured with noninvasive multielectrode for study the motor control ability for paretic limb in stroke patients. To investigate the firing rate variation, the measure of joint interval histogram (JIH), derived from normalized interpulse interval (IPI) train, were adopted in this research. With the limited clinical cases, the JIH parameters are only appropriate for intra-subject comparison for affected and unaffected sides. In addition, MU activities of the affected side measured from acute to stable stages were evaluated for clinical time-course study
Keywords :
electromyography; feature extraction; medical signal processing; neurophysiology; pattern classification; signal sampling; affected side; firing rate variation; intra-subject comparison; joint interval histogram; motor control ability; motor unit firing patterns; noninvasive multielectrode EMG; normalized interpulse interval train; paretic limb; spatial decomposition; stroke patients; surface motor unit action potentials; time-course analysis; unaffected side; Biomedical measurements; Density functional theory; Electromyography; Fault detection; Muscles; Needles; Neuromuscular; Pattern analysis; Stochastic processes; Surface morphology;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.756602
