NDLI: The differences of human muscle responses to magnetic nerve stimulation with different coil current waveforms

Content Provider	IEEE Xplore Digital Library
Author	Kobayashi, M. Hyodo, A. Ueno, S. Kurokawa, T.
Copyright Year	1997
Description	Author affiliation: Dept. of Biomed. Eng., Tokyo Univ., Japan (Kobayashi, M.)
Abstract	The differences of muscle responses to magnetic nerve stimulation with different coil current waveforms were predicted using cable theory and investigated on the median nerve in a human subject. The mono- and biphasic coil current whose time derivatives were bi- and triphasic with the equivalent 1st phase were compared concerning (1) the excitation threshold, (2) latency and (3) amplitude of compound muscle action potentials (CMAPs). The effect of different coil current directions, proximal or distal, at the intersection of a figure-eight coil were also considered. The combinations of the coil current waveforms and directions were termed MONO-PROX, MONO-DIST, BI-PROX and BI-DIST, where MONO- and BI-corresponded to monophasic and biphasic, and PROX and DIST to proximal and distal, respectively. The results in man were that (1) the excitation threshold was the lowest with BI-DTST, (2) the latencies with MONO-PROX and BI-PROX were equivalent to each other, and (3) the amplitudes of CMAPs with BIPROX and BI-DIST were almost equivalent and larger than with the others. The results in man were generally consistent with predictions, except for the evaluation of "cathode distal" effect.
Starting Page	1928
Ending Page	1931
File Size	325993
Page Count	4
File Format	PDF
ISBN	0780342623
ISSN	1094687X
DOI	10.1109/IEMBS.1997.758714
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-10-30
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Humans Muscles Coils Delay Biomedical engineering Orthopedic surgery In vitro Prototypes Voltage
Content Type	Text
Resource Type	Article

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