Chaotic activity during electrical stimulation of paralyzed muscle

Author

Erfanian, Abbas ; Chizeck, Howard Jay ; Hashemi, Reza M.

Author_Institution

Dept. of Biomed. Eng., Iran Univ. of Sci. & Technol., Tehran, Iran

Volume

4

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

1756

Abstract

In this paper, the authors consider the evoked EMG (EEMG) signal that is obtained using surface electrodes when the quadriceps muscles in paraplegic subjects are stimulated via percutaneous intramuscular electrodes. In this work, the authors explore the chaotic behavior of electrically stimulated muscle. It is found that the state space of the muscle exhibits a strange attractor which has a noninteger correlation dimension. In addition, the correlation dimension increases as the muscle becomes more fatigued

Keywords

chaos; electromyography; medical signal processing; chaotic activity; correlation dimension; evoked EMG signal; functional electrical stimulation; muscle fatigue; noninteger correlation dimension; paralyzed muscle; paraplegic subjects; percutaneous intramuscular electrodes; quadriceps muscles; state space; strange attractor; surface electrodes; Autocorrelation; Chaos; Control systems; Delay effects; Electrical equipment industry; Electrical stimulation; Electrodes; Electromyography; Muscles; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.647647

Filename

647647