Influence of body position on dynamics of the pelvic floor measured with transperineal ultrasound imaging in men.
Aged
Anal Canal
/ diagnostic imaging
Anatomic Landmarks
Feasibility Studies
Humans
Male
Middle Aged
Muscle Contraction
/ physiology
Pelvic Floor
/ diagnostic imaging
Perineum
Posture
/ physiology
Prostatectomy
Prostatic Neoplasms
Rectum
Sitting Position
Standing Position
Ultrasonography
/ methods
Urethra
/ diagnostic imaging
Urinary Bladder
/ diagnostic imaging
anorectal junction
bulb of the penis
bulbocavernosus
posture
puborectalis
seated
sitting
standing
striated urethral sphincter
urethra
Journal
Neurourology and urodynamics
ISSN: 1520-6777
Titre abrégé: Neurourol Urodyn
Pays: United States
ID NLM: 8303326
Informations de publication
Date de publication:
03 2020
03 2020
Historique:
received:
19
12
2019
accepted:
23
01
2020
pubmed:
7
2
2020
medline:
13
11
2020
entrez:
7
2
2020
Statut:
ppublish
Résumé
This paper aims to evaluate the feasibility of transperineal ultrasound imaging (TPUS) for visualizing the motion of pelvic landmarks associated with striated pelvic floor muscle contraction in men in standing; to compare the locations of pelvic landmarks between sitting and standing; and to compare the effects of different body positions on measures of pelvic floor muscle contraction. Thirty-five men awaiting prostatectomy volunteered to participate. Participants performed three repetitions of submaximal pelvic floor contraction in sitting and again in standing. Movement of pelvic landmarks with contraction was recorded using an ultrasound imaging transducer placed on the perineum. The feasibility of TPUS in men in standing was demonstrated through the visualization of three out of four pelvic landmarks in more than 95% of images in the standing position. Analysis of pelvic landmarks and their respective relationships with muscle shortening demonstrated that the anorectal junction and urethrovesical junction were lower and the estimated length of puborectalis was shorter in standing than sitting. The mid-urethra (striated urethral sphincter) and anorectal junction (puborectalis) landmark displaced further cranially in standing than sitting. TPUS can be used to visualize three pelvic landmarks in men with cancerous prostates. Puborectalis is shorter at rest in standing than sitting, and elevation of the mid-urethra and the anorectal junction is more in standing than sitting. Together these findings indicate that feedback for pelvic floor muscle training is possible in both positions, but the position needs to be standardized for a comparative assessment.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
954-961Informations de copyright
© 2020 Wiley Periodicals, Inc.
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