» Articles » PMID: 30069729

Submaximal Pelvic Floor Muscle Contractions: Similar Bladder-neck Elevation, Longer Duration, Less Intra-abdominal Pressure

Overview
Publisher Springer
Date 2018 Aug 3
PMID 30069729
Citations 5
Authors
Affiliations
Soon will be listed here.
Abstract

Introduction And Hypothesis: An adequate pelvic floor muscle contraction (PFMC) elevates the bladder neck (BN) and stabilizes it during increased intra-abdominal pressure (IAP). A maximal PFMC may increase the IAP and thereby prevent BN elevation. The aim of this study was to assess BN elevation during submaximal and maximal PFMC and their achievable duration.

Methods: We recruited 68 women with stress urinary incontinence and 14 vaginally nulliparous continent controls who were able to perform a PFMC on vaginal palpation. Women were upright and performed a maximal PFMC as long as possible, followed by a submaximal PFMC, controlled by vaginal electromyogram (EMG). BN position was measured with perineal ultrasound, IAP and urethral pressure with a microtip catheter, and breathing with a circular thorax sensor.

Results: A submaximal PFMC elevated the bladder neck 4 mm in continent and incontinent women (p = 0.655) and 4.5 vs. 5 mm during maximal PFMC (0.528). Submaximal PFMC was maintained significantly longer than a maximal PFMC (33 vs 12 s) with no difference between groups. A maximal PFMC resulted in BN descent in 29% of continent and 28% of incontinent women, which was not observed during submaximal PFMC. Breathing was normal in 70% of continent and 71% of incontinent women during submaximal PFMC but stopped completely in 21 and 50%, respectively, during maximal PFMC (p = 0.011). IAP increase was significantly greater with maximal PFMC in both groups (24 vs. 9.6 cmHO and 17 vs. 9 cmHO, respectively).

Conclusion: Submaximal PFMC are sufficient to elevate the bladder neck, can be maintained longer, and breathing was not influenced.

Citing Articles

Technologies for Evaluation of Pelvic Floor Functionality: A Systematic Review.

Forstl N, Adler I, Suss F, Dendorfer S Sensors (Basel). 2024; 24(12).

PMID: 38931784 PMC: 11207910. DOI: 10.3390/s24124001.


Clinical study on improving the function of female bladder in controlling urine by acupuncture Zhibian (BL54) under ultrasound guidance.

Dai J, Zhang X, Lian F, Li H, Tu J, Chen Y World J Urol. 2024; 42(1):300.

PMID: 38710872 PMC: 11074043. DOI: 10.1007/s00345-024-05004-2.


Effect of prolonged second stage of labor on pelvic floor function: A prospective cohort study.

Jin X, Wu S, Huang J, Tong X, Li H, Chu L Int Urogynecol J. 2022; 33(6):1633-1638.

PMID: 35267059 DOI: 10.1007/s00192-022-05136-2.


Physiotherapy according to the BeBo Concept as prophylaxis and treatment of urinary incontinence in women after natural childbirth.

Sniezek A, Czechowska D, Curylo M, Glodzik J, Szymanowski P, Rojek A Sci Rep. 2021; 11(1):18096.

PMID: 34508116 PMC: 8433362. DOI: 10.1038/s41598-021-96550-x.


The pathophysiology of stress urinary incontinence: a systematic review and meta-analysis.

Falah-Hassani K, Reeves J, Shiri R, Hickling D, McLean L Int Urogynecol J. 2021; 32(3):501-552.

PMID: 33416968 PMC: 8053188. DOI: 10.1007/s00192-020-04622-9.

References
1.
Anderson R, Shepherd A, Feneley R . Microtransducer urethral profile methodology: variations caused by transducer orientation. J Urol. 1983; 130(4):727-8. DOI: 10.1016/s0022-5347(17)51425-1. View

2.
Peschers U, Schaer G, Anthuber C, DeLancey J, Schuessler B . Changes in vesical neck mobility following vaginal delivery. Obstet Gynecol. 1996; 88(6):1001-6. DOI: 10.1016/s0029-7844(96)00338-9. View

3.
Burgio K, Kraus S, Menefee S, Borello-France D, Corton M, Johnson H . Behavioral therapy to enable women with urge incontinence to discontinue drug treatment: a randomized trial. Ann Intern Med. 2008; 149(3):161-9. PMC: 3201984. DOI: 10.7326/0003-4819-149-3-200808050-00005. View

4.
Miller J, Perucchini D, Carchidi L, DeLancey J, Ashton-Miller J . Pelvic floor muscle contraction during a cough and decreased vesical neck mobility. Obstet Gynecol. 2001; 97(2):255-60. PMC: 1226460. DOI: 10.1016/s0029-7844(00)01132-7. View

5.
Ulmsten U, Asmussen M, Lindstrom K . A new technique for simultaneous urethrocystometry including measurements of the urethral pressure profile. Urol Int. 1977; 32(2-3):127-36. DOI: 10.1159/000280122. View