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Surface EMG; reference electrode position

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  • Surface EMG; reference electrode position


    We have recently purchased a new EMG system (WBA from Mega Electronics
    Ltd). The software associated to this is MegaWin.

    As with a lot of EMG software, it provides recommendations for the
    location of electrodes for each muscle. The reference (ground)
    electrode's location is recommended as being a neighbouring muscle
    (commonly a synergist), and not a "bony" landmark as the majority of
    research/theory suggests.

    I have since contacted the company, and searched the literature, but
    have found very little, with the only help being limited published
    research that has used this set-up.

    Does anyone know of why this position for the reference electrode is OK
    to use, despite what I have researched and been told? Additionally, does
    anyone know of any references/publications that discuss the use of this

    I will of course send out a collation of the responses I get.

    Thank you in advance.

    Stuart Miller

    Biomechanics Lecturer
    Middlesex University
    England, UK