Independence of myoelectric control signals examined using a surface EMG model

Madeleine M. Lowery*, Nikolay S. Stoykov, Todd A Kuiken

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

The detection volume of the surface electromyographic (EMG) signal was explored using a finite-element model, to examine the feasibility of obtaining independent myoelectric control signals from regions of reinnervated muscle. The selectivity of the surface EMG signal was observed to decrease with increasing subcutaneous fat thickness. The results confirm that reducing the interelectrode distance or using double-differential electrodes can increase surface EMG selectivity in an inhomogeneous volume conductor. More focal control signals can be obtained, at the expense of increased variability, by using the mean square value, rather than the root mean square or average rectified value.

Original languageEnglish (US)
Pages (from-to)789-793
Number of pages5
JournalIEEE Transactions on Biomedical Engineering
Volume50
Issue number6
DOIs
StatePublished - Jun 1 2003

Keywords

  • Detection volume
  • Finite-element model
  • Myoelectric control
  • Surface EMG

ASJC Scopus subject areas

  • Biomedical Engineering

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