The size index as a motor unit identifier in electromyography examined by numerical calculation

Yasutomo Okajima, Yutaka Tomita, Hirotaka Sasa, Naofumi Tanaka, Akio Kimura, Naoichi Chino

研究成果: Article査読

8 被引用数 (Scopus)

抄録

A computer simulation was performed to investigate the size index as a motor unit identifier in electromyography. The size index calculated from the amplitude and area of the simulated motor unit action potential (MUP) was plotted against the distance between the needle electrode and current source to show how the index changes as a function of the distance. The index of the MUP also was plotted against the number of muscle fibers belonging to a single motor unit, the size of the motor unit territory, and the diameter of the muscle fibers in order to establish the major determinants of the index. The index was relatively constant for the distance less than 2 mm between the needle electrode and closest edge of the current source. It changed logarithmically with the number of muscle fibers and with the diameter of the fibers. Copyright (C) 1999 Elsevier Science Ltd.

本文言語English
ページ(範囲)201-208
ページ数8
ジャーナルJournal of Electromyography and Kinesiology
9
3
DOI
出版ステータスPublished - 1999 4 1

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Biophysics
  • Clinical Neurology

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