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Title: Incontinent women have altered pelvic floor muscle contraction patterns
Authors: Devreese, Anna Marie ×
Staes, Filip
Janssens, Luc
Penninckx, Freddy
Vereecken, Raoul
De Weerdt, Willy #
Issue Date: Aug-2007
Publisher: Williams and Wilkins Co.
Series Title: Journal of urology vol:178 issue:2 pages:558-562
Abstract: Purpose
Pelvic floor exercises are invaluable for regaining continence but mechanisms are not fully understood. To contribute to the understanding of these mechanisms we investigated the contraction sequence of superficial vs deep pelvic floor muscles in 6 positions in continent and incontinent women.
Materials and Methods
The onset of contraction of the superficial and deep pelvic floor muscles was recorded by perineal and intravaginal surface electromyography in 32 continent and 50 incontinent women. The agreement between perineal and intravaginal recordings was calculated with the κ statistic and the percent of agreement. Differences in onset between superficial and deep pelvic floor muscle contractions are reported as the median and IQR.
Results
Perineal and intravaginal electromyography recordings used to define the onset of muscle activity showed a high level of agreement. In the continent group the superficial muscles almost always contracted before the deep muscles in all 6 positions. In the incontinent group the reverse sequence was observed in 3 of 6 positions. Higher and less consistent time differences in the onset of contraction of the 2 muscle layers were found in incontinent vs continent women.
Conclusions
Contractions of the superficial and deep pelvic floor muscles can be recorded by intravaginal or perineal electrodes. A consistent contraction sequence can be found in continent women but it is lacking in incontinent women. This might be a possible explanation for incontinence. Including differentiated muscle contraction exercises in pelvic floor muscle exercise programs may further optimize treatment outcomes.
URI: 
ISSN: 0022-5347
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Research Group for Neuromotor Rehabilitation
Abdominal Surgical Oncology
Research Group for Musculoskeletal Rehabilitation
Urology Section (-)
Electrical Engineering (ESAT) TC, Campus Group T Leuven
Technologiecluster ESAT Elektrotechnische Engineering
× corresponding author
# (joint) last author

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