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    Micro electro mechanical systems based sensor for mechanomyography


    Murphy, Chris and Campbell, Niall and Caulfield, Brian and Ward, Tomas E. and Deegan, Catherine (2008) Micro electro mechanical systems based sensor for mechanomyography. In: 19th international conference BIOSIGNAL 2008, Brno, Czech Republic.

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    Abstract

    The purpose of this work was to design a micro electrical mechanical sensor (MEMS) based system to measure the mechanomyogram of electrically stimulated muscle. The measuring device for the mechanomyography (MMG) system consisted of a dual axis accelerometer and a signal conditioning circuit designed specifically to enhance raw MMG signals . Currently electromyography (EMG) is the standard tool for measuring muscle contraction. During electrical stimulation however, EMG measurements are corrupted with a large stimulus artefact. This obscures any contributions from the much smaller electrical activity of the muscle tissue itself for the first 10ms to 12ms, before disappearing. MMG, being based on kinetic measurements, offers an alternative in such cases. We illustrate this with a dual modality EMG/MMG simultaneous acquisition for a Hoffman-reflex study.

    Item Type: Conference or Workshop Item (Paper)
    Keywords: Micro electro mechanical systems; mechanomyography;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 1288
    Depositing User: Dr Tomas Ward
    Date Deposited: 11 Mar 2009 16:37
    Refereed: Yes
    URI:

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