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Is paradoxical contraction of puborectalis muscle of functional importance?
Abstract
Paradoxical contraction of the puborectalis muscle during simulated defecation straining (anismus) has been cited as a cause of constipation. The functional specificity of this phenomenon was evaluated in 79 patients, 50 with constipation, 21 with idiopathic perineal pain, and eight with solitary rectal ulcer syndrome. Electromyogram evidence of paradoxical puborectalis contraction was observed in 38 (76 percent), ten (48 percent), and four (50 percent) of these patients, respectively. All patients with solitary rectal ulcer syndrome had difficulty defecating; defecation was normal in all patients with perineal pain. These observations suggest that paradoxical contraction of the puborectalis muscle is not a specific finding, and that it is not the sole cause of constipation in patients with anismus.
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Citations
Cited by
American Gastroenterological Association Technical Review on Constipation
Bharucha, A. E., Pemberton, J. H., & Locke, G. R. (2013) · Gastroenterology · doi:10.1053/j.gastro.2012.10.028 · Cited by 909
AGA technical review on constipation
Locke, G. R., Pemberton, J. H., & Phillips, S. F. (2000) · Gastroenterology · doi:10.1053/gast.2000.20392 · Cited by 324
Outcome of colectomy for severe idiopathic constipation.
Kamm, M. A., Hawley, P. R., & Lennard-Jones, J. E. (1988) · Gut · doi:10.1136/gut.29.7.969 · Cited by 253
Bharucha, A. E., & Wald, A. (2019) · Mayo Clinic Proceedings · doi:10.1016/j.mayocp.2019.01.031 · Cited by 238
Metadata
- Authors
- Jones, P. N., Lubowski, D. Z., Swash, M., & Henry, M. M.
- Venue
- Diseases of the Colon & Rectum
- Published
- 1987-09
- Volume
- 30
- Issue
- 9
- Pages
- 667-670
- ISSN
- 0012-3706 (ISSN-L)
- OpenAlex
- W1981313012
- Cited by
- 191
- References
- 0
- FWCI
- 6.19
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Is paradoxical contraction of puborectalis muscle of functional importance? https://app.cochat.ai/papers/10.1007/bf02561685
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- Jones, P. N., Lubowski, D. Z., Swash, M., & Henry, M. M. (1987). Is paradoxical contraction of puborectalis muscle of functional importance? Diseases of the Colon & Rectum. https://doi.org/10.1007/bf02561685
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