Abstract
In this study five volunteers with special training in anal sphincter exercise (Scandinavian Yoga School) managed voluntarily to reduce anal pressure. The mean reduction of anal pressure was 20 mm Hg. In one of the subjects, this was shown by manometry during low spinal anesthesia and electromyography to be caused by relaxation of the external anal sphincter.
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Read at the meeting of the International Society of University Colon and Rectal Surgeons, Dallas, Texas, May 4 to 8, 1986.
This investigation was supported by a grant from Kjell and Märta Beijer Foundation.
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Brodén, G., Dolk, A., Frostell, C. et al. Voluntary relaxation of the external anal sphincter. Dis Colon Rectum 32, 376–378 (1989). https://doi.org/10.1007/BF02563687
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DOI: https://doi.org/10.1007/BF02563687