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Human rectosigmoid electromyography: a new approach and some pitfalls
E A Wegman1, A M Aniss, T D Bolin
1Prince Henry and Prince of Wales Hospitals and School of Medicine, University of New South Wales, Sydney, Australia.
Journal of the Royal Society of Medicine
|February 1, 1989
Abstract:
A method has been developed to record directly myoelectrical activity from the smooth muscle of the colon of intact subjects using pairs of intramuscular wires. Discrete bursts of myoelectrical activity occurred at 4-20 per min. A small interelectrode distance in this method allows contamination of colonic myoelectrical activity by the electromyogram of skeletal muscle to be excluded. This artefact has not been considered in previous recordings of 'colonic' activity.