In article <_knot.queen.846_12.02.93.03.48.37_ at post.queensu.ca>, BOYDJ at QUCDN.QueensU.CA (Jeff Boyd) writes:
|>|> A question has arisen in a MUAP simulation I'm running. If I define the
|> 'scope' of an electrode to be the maximum number of motor units whose
|> activity can be detected by it during heavy exertion, what might a rough
|> estimate be for that maximum number for the biceps? I've read that the
|> biceps normally has 750-800 motor units, and I'm wondering what the scope
|> of a 5mm surface disk electrode might be.
In my experience, the activity from the 3-4 largest and fastest units masks out the rest.