In vivo magnetomyograms of skeletal muscle

Wim Rutten, A. Wildeman, B.K. van Veen, W. Wallinga

    Research output: Contribution to conferencePaperAcademic

    1 Citation (Scopus)
    65 Downloads (Pure)

    Abstract

    Magnetomyography (MMG) is a new noninvasive technique inspired by the magnetoneurographic method of J.P. Wikswo (IEEE Trans. Biomed. Eng., Vol.BME-30, p.215-21, 1983). MMG is used to detect action currents in a muscle, which is immersed in a highly conducting fluid. The detection coil is of a toroidal shape, with the muscle passing through the center of the coil. For a long muscle which fits tightly in the toroid, it is to be expected that magnetic fields correspond almost completely to the intracellular longitudinal (axial) currents in active muscle fibers. An experimental setup with specific coils for rat and mouse skeletal muscles was developed. It is sensitive enough to detect currents from single motor units. The technique can be used to record stimulated twitch activity in live muscle as a function of force level, coil position along the muscle, temperature, etc. By simulating the response with a finite-element forward model, it is possible to calculate action currents under various experimental conditions
    Original languageEnglish
    Pages981-982
    DOIs
    Publication statusPublished - 1989
    Event11th Annual International Conference of the IEEE Engineering in Engineering in Medicine and Biology Society, EMBC 1989 - Seattle, United States
    Duration: 9 Nov 198912 Nov 1989
    Conference number: 11

    Conference

    Conference11th Annual International Conference of the IEEE Engineering in Engineering in Medicine and Biology Society, EMBC 1989
    Abbreviated titleEMBC
    CountryUnited States
    CitySeattle
    Period9/11/8912/11/89

    Keywords

    • IR-56098

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