Clarification and confirmation of the Knack maneuver: the effect of volitional pelvic floor muscle contraction to preempt expected stress incontinence

The aim of the study was to determine the immediate effect of timing a pelvic muscle contraction with the moment of expected leakage (the Knack maneuver) to preempt cough-related stress incontinence. Women performed a standing stress test using three hard coughs without and then with the Knack maneu...

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Bibliographic Details
Published in:International Urogynecology Journal 2008-06, Vol.19 (6), p.773-782
Main Authors: Miller, Janis M., Sampselle, Carolyn, Ashton-Miller, James, Hong, Gwi-Ryung Son, DeLancey, John O. L.
Format: Article
Language:English
Subjects:
Gynecology
Medicine
Medicine & Public Health
Original Article
Urinary incontinence
Urology
Women
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Summary:The aim of the study was to determine the immediate effect of timing a pelvic muscle contraction with the moment of expected leakage (the Knack maneuver) to preempt cough-related stress incontinence. Women performed a standing stress test using three hard coughs without and then with the Knack maneuver. Volume of urine loss under both conditions was quantified with paper-towel test. Two groups of women were tested: nonpregnant women ( n  = 64) and pregnant women ( n  = 29). In nonpregnant women, wetted area decreased from a median (range) of 43.2 (0.2–183.7) cm 2 without the Knack maneuver to 6.9 (range of 0 to 183.7 cm 2 ) with it ( p  
ISSN:0937-3462
1433-3023
DOI:10.1007/s00192-007-0525-3