Pelvic Floor Muscle Function Research Articles

The acute effects of running on pelvic floor morphology and function in runners with and without running-induced stress urinary incontinence

Introduction and hypothesisThe aim of this study was to examine the impact of a single running session on pelvic floor morphology and function in female runners, and to compare those with and without running-induced stress urinary incontinence (RI-SUI).MethodsThis cross-sectional, observational study involved two groups: female runners who regularly experienced RI-SUI (n = 19) and runners who did not (n = 20). Pelvic floor muscle (PFM) properties were assessed using intravaginal dynamometry during maximal voluntary contractions (MVC) and during passive tissue elongation. The morphology of the pelvic floor was assessed at rest, during MVC and during maximal Valsalva maneuver (MVM) using 2D and 3D transperineal ultrasound imaging before and after a running protocol. Mixed-effects ANOVA models were used to compare all outcomes between groups and within-groups, including the interaction between group and time. Effect sizes were calculated.ResultsNo changes in PFM function assessed using intravaginal dynamometry were observed in either group after the run. Significant and large within-group differences were observed on ultrasound imaging. Specifically, the area and antero-posterior diameter of the levator hiatus were larger after the run, the bladder neck height was lower after the run, and the levator plate length was longer after the run (p ≤ 0.05). At the peak MVM and MVC, the bladder neck height was lower after the run than before the run (p ≤ 0.05). No between-group differences were observed for any outcomes.ConclusionsRunning appears to cause transient strain of the passive tissues of the female pelvic floor in runners both with and without RI-SUI, whereas no concurrent changes are observed in PFM contractile function.

The effect of vitamin D deficiency on urinary incontinence during third trimester pregnancy.

Urinary incontinence (UI) is a common problem which is associated with impaired quality of life. Vitamin D plays a crucial role for pelvic floor muscle function. The aim of this study was to investigate the effect of vitamin D deficiency on UI in pregnant women in the third trimester of pregnancy. All pregnant women at > 28 weeks of gestation who were followed in the gynecology and obstetrics outpatient clinic were screened. The patients were assessed for UI during routine follow-up. The Incontinence Severity Index was used to determine the severity of UI. A total of 210 patients were included as the study group and 40 patients were included as the control group. Both groups were compared based on the International Incontinence Severity Index scores. Of the patients, 40% had a history of UI and 84% had vitamin D deficiency. Pregnant women with vitamin D deficiency had statistically significant UI, compared to pregnant women in the control group. The severity of UI was also significantly higher in the patients with vitamin D deficiency. Urinary incontinence is significantly associated with vitamin D deficiency in pregnant women.

What are the cut-off points for vaginal manometry to differentiate women with a weak from those with a strong pelvic floor muscle contraction?: Vaginal manometry to classify a pelvic floor muscle contraction

BackgroundVaginal manometry is regarded as an objective method to assess pelvic floor muscles (PFM) function and can measure several variables during contraction. ObjectiveTo determine which variables could differentiate women with/without a weak/strong PFM contraction and determine their cut-off points. MethodsThis is a diagnostic accuracy study performed on 156 women with a mean age of 40.4 (SD, 15.9) years. The reference test was vaginal palpation and the index test was vaginal manometry (Peritron™ manometer). Variables were pressure at rest, pressure achieved with maximal voluntary contraction (MVC), MVC average, duration, gradient, and area under the curve (AUCm). The Receiver Operating Curve (AUC/ROC) and logistic regression were used to analyze the data and obtain cut-off points. ResultsExcellent ability to discriminate women with a weak/strong PFM contraction was found for MVC average (cut-off: 28.93 cmH2O), MVC (cut-off: 38.61 cmH2O), and the AUCm (cut-off: 1011.93 cm²*s). The gradient variable had good discrimination ability (AUC/ROC=0.81; cut-off: 28.68 cmH2O/s). The MVC average assessed by manometry, menopausal status, and the presence of stress urinary incontinence (SUI) were associated with a weak/strong PFM contraction in the multivariate analysis; however, the most parsimonious model to discriminate weak/strong PFM contraction included only the MVC average (AUC/ROC = 0.95; sensitivity: 0.87; specificity: 0.91). ConclusionThese results suggest which manometry variables are appropriate to assess and classify PFM function in females. These could be used to help physical therapists to make clinic decisions about the management of female PFM.

Impact of preoperative pelvic floor muscle function on the success of surgical treatment of pelvic organ prolapse

Introduction and hypothesisThe objective of this study was to identify the potential characteristics of pelvic floor muscles (PFM) in the preoperative assessment that could be associated with post-surgical prolapse severity. We hypothesized that the same variables, if identified, could be addressed in preoperative rehabilitation to improve surgical results.MethodsThis was a single-center prospective observational study that included women who underwent surgical pelvic organ prolapse repair between 2020–2022. Genital prolapse was evaluated according to the Pelvic Organ Prolapse Quantification (POP-Q) system. All the participants underwent a PFM assessment, including a vaginal digital assessment and manometry (Peritron™ 9300 V) before surgery and at 1-, 3-, and 6-month follow-ups. Several PFM variables were recorded: vaginal resting pressure, vaginal pressure during maximal voluntary contraction (MVC), area under the curve during a 10-second MVC, ability to correctly contract the PFMs, and reflexive activation during cough and relaxation. The primary endpoint of the analysis was objective surgical success defined as POP-Q 0 or 1 at the 6-month follow-up. Additionally, a change in pelvic floor muscle function was recorded during postoperative visits.ResultsA total of 106 females were included in the study. Fifty-one were lost during the 6-month follow-up, which is a major limitation of the study. None of the examined parameters evaluating PFM were associated with surgical success. No statistically significant difference was found in MVC and PFM endurance before and after surgery. Post-surgery, a significant change was observed in the vaginal resting pressure and the ability to correct PFM activation and relaxation.ConclusionsPreoperative PFM function is not associated with surgical success 6 months after surgery.

Transcranial Direct Current Stimulation combined with Physiotherapy in the control of Chronic Pelvic Pain: a case report

INTRODUCTION: Chronic Pelvic Pain (CPP) is a non-menstrual pain condition of intense pain that can cause dysfunctions in some aspects such as quality of life, sexual function, among others. OBJECTIVES: To evaluate the effects of transcranial direct current stimulation (tDCS) on pain, as well as pelvic floor functionality, sexual dysfunction and quality of life in a patient with CPP. METHODS AND MATERIALS: This is a case report of patients with significant CPP who underwent tDCS for 5 consecutive days, targeting the dorsolateral prefrontal cortex (DLFPC) at 2mA for 20 minutes, in combination with physiotherapy. Pain scales, a sexual function questionnaire, pelvic floor muscle function and quality of life measures were used for evaluation. RESULTS: There was a 62.06% improvement in pain intensity and a 22.91% improvement in pain interference. The average pain score decreased from 10 at the start of the intervention (D0) to 3 in the first week (D1) and 6 in the second week (D2) of post-intervention menstruation. Regarding sexual function, the results were 31.2 at D0, 31.8 at D1 and 29.3 at D2. Improvement was observed in pelvic floor muscle strength, endurance, and repetitions at D1 and D2, although there was a decrease in strength compared to D2. The average scores for domains of quality of life were as follows: physical (55.95), psychological (59.72), social relationships (69.44) and environment (82.29). CONCLUSION: tDCS positively affected pain management and pelvic floor muscle function in the patient. However, there were no significant gains observed in other domains.

Physiotherapy in Patients with Stress Urinary Incontinence: A Systematic Review and Meta-analysis.

Physiotherapy is the most commonly used treatment for stress urinary incontinence including pelvic floor muscle training, biofeedback, and electrical stimulation. This systematic review evaluated the effects of physiotherapy in patients with stress urinary incontinence compared with no treatment, placebo, sham, surgery, or other inactive control treatments. MEDLINE (via PubMed), The Cochrane Library (CENTRAL), Embase, Scopus, Web of Science, PEDro, and Trip Database were explored using applicable vocabularies for all English and Persian language investigations released from inception to January 2021. On one side, trials including physiotherapy of pelvic floor muscle training, biofeedback, and electrical stimulation and on the other, either no treatment, placebo, sham, surgery, or other inactive control treatments were included. Studies were assessed for appropriateness and methodological excellence. Two authors extracted data. Disagreements were resolved by a third opinion. Data were processed as described in the Joanna Briggs Institute Handbook. Twenty-nine trials with 2601 participants were found, but only 16 were included because of data heterogeneity. The results showed that physiotherapy interventions are better than no treatment in terms of urine leakage, but no difference was found for urinary incontinence severity. Also, physiotherapy showed favorable results over comparison groups for International Consultation on Incontinence Questionnaire, pad test, pelvic floor muscle function, and improvement outcomes. This systematic review supports the widespread use of pelvic physiotherapy as the first-line treatment for adult patients with stress urinary incontinence.

Effect of structured pelvic floor muscle training on pelvic floor muscle contraction and treatment of pelvic organ prolapse in postpartum women: ultrasound and clinical evaluations.

The purpose of this study is to examine the impact of structured pelvic floor muscle training (PFMT) on pelvic floor muscle (PFM) contraction and the treatment of pelvic organ prolapse (POP) in postpartum women. Sixty patients who volunteered for a PFMT assessment at 6-8weeks after delivery were included in this retrospective analysis. For 5 weeks, all patients had structured PFMT, which included supervised daily pelvic muscle contractions, biofeedback therapy, and electrical stimulation. The main outcomes were POP stage assessed by POP quantification (POP-Q), pelvic organ position and hiatus area (HA) assessed by transperineal ultrasound, PFM contraction assessed by Modified Oxford scale (MOS), surface electromyography (EMG), and sensation of PFM graded using visual analog scale (VAS). Structured PFMT was associated with better POP-Q scores in Aa, Ba, C, and D (p values were 0.01, 0.001, 0.017, and 0.001 separately). The bladder neck at rest and maximum Valsalva, the cervix position and HA at maximum Valsalva in transperineal ultrasound were significantly better than before (p values were 0.031, < 0.001, 0.043, and < 0.001 separately). PFM contraction assessed by MOS, EMG, and PFM VAS score were significantly improved (all p values were < 0.001). However, no significant improvement was observed in POP-Q stage. Structured PFMT can increase PFM function in postpartum women but cannot modify the POP-Q stage. Transperineal ultrasonography is a useful method for evaluating therapy efficacy objectively. More randomized controlled trials are needed before definitive conclusions can be drawn about the effect of structured PFMT on POP in postpartum women.

The Correlation between Transperineal Shear-Wave Elastography and Transabdominal Ultrasound When Assessing Pelvic Floor Function in Nulliparous Women.

Pelvic floor muscles (PFMs) play a crucial role in maintaining pelvic organ support and continence. However, pelvic floor dysfunction (PFD), often resulting from insufficient PFM control, poses a substantial global health challenge for women. This study aims to explore the relationship between levator ani muscle elasticity when assessed through transperineal shear-wave elastography (SWE) and bladder base displacement, quantified using transabdominal ultrasonography (TAUS), as a means to comprehensively evaluate PFM function. A total of 42 nulliparous women participated in this study. Participants received instructions on proper PFM contractions using Kegel exercises. Levator ani muscle elasticity was assessed both at rest and during contractions using transperineal SWE, while bladder base displacement was simultaneously measured through TAUS. Repeated measures demonstrated strong intraclass correlation coefficients of 0.906 at rest and 0.687 during contractions for levator ani muscle elasticity. The mean elasticity values were 24.7 ± 4.5 kPa at rest and 62.1 ± 10.4 kPa during contractions. Additionally, the mean bladder base displacement was 7.2 ± 2.5 mm, and the normalized bladder base displacement via body mass index was 0.3 ± 0.1 mm. Significantly, a moderate correlation was identified between the PFM function, represented by the difference in levator ani elasticity during contractions and resting, and bladder base displacement (r = 0.486, p = 0.001). These findings underscore the potential utility of transperineal SWE as a reliable and noninvasive method to assess levator ani muscle elasticity and, consequently, PFM function. In conclusion, this study sheds light on the interplay between PFM elasticity and bladder base displacement, offering insights into PFM function assessments. The observed correlation suggests the clinical relevance of SWE in providing valuable information for treatment planning in PFD. These findings contribute to a deeper understanding of PFM dynamics, ultimately aiding in the effective management of PFD among women.

Analysis of multisite surface electromyography characteristics of pelvic floor muscles in postpartum patients with diastasis recti abdominis.

To explore the electrophysiological characteristics of the independent muscles in the pelvic floor muscle (PFM) group of postpartum women with diastasis recti abdominis (DRA) and analyze the correlation between the rectus abdominis interval and PFM function. A total of 133 women who underwent postpartum re-examination from August 2021 to July 2022 were collected. The participants were divided into DRA and control groups based on the occurrence of DRA on ultrasonography. General data of the participants were collected, and the multisite surface electromyography (sEMG) assessment of the PFMs was performed using a intravaginal novel airbag-type stretchable electrode array device developed by the team. The sEMG characteristics of the different PFMs in the two groups were compared, and the correlation between the maximum rectus abdominis interval and the sEMG parameters of different PFMs was analyzed. There were no differences in the baseline demographics and incidence of pelvic floor dysfunction between the two groups (p > 0.05). The mean amplitude of vaginal sphincter endurance contraction in the DRA group was significantly lower than that in the control group (28.44 ± 15.59 vs. 22.03 [12.22, 28.00], p < 0.05). Spearman's rank correlation analysis showed a weak negative correlation between the maximum rectus abdominis interval and the endurance contraction mean amplitude of the urethral and external anal sphincters (r = -0.173, -0.217, p < 0.05). Patients with DRA had weakened PFM endurance, and there was a weak negative correlation between the maximum rectus abdominis interval and the endurance contraction mean amplitude of the PFM.

Can pelvic floor muscle training positions be selected according to the functional status of pelvic floor muscles?

Pelvic floor muscle (PFM) training varies according to the functional status of PFM. It is used to strengthen underactive PFM and relax overactive PFM. This study aimed to determine the appropriate PFM training positions according to the functional status of the PFM in women with pelvic floor dysfunction. Seventy-six women diagnosed with pelvic floor dysfunction were included. After the digital palpation, participants were divided into four groups according to the functional status of PFM: normal, overactive, underactive, and nonfunctional. Participants' PFM and abdominal muscle functions were assessed with superficial electromyography in three positions (modified butterfly pose-P1, modified child pose-P2, and modified deep squat with block pose-P3). Friedman's analysis of variance and the Kruskal-Wallis test were used to assess whether the function of the muscles differed according to the functional status of the PFM and training positions. Normal PFM maximally contracted and relaxed in P1, whereas nonfunctional PFM was in P3 (P > 0.05). Overactive and underactive PFM was most contracted in P2 (P > 0.05) and relaxed in P1 (P < 0.001). In each functional state of the PFM, all abdominal muscles were most relaxed in P1, while their most contracted positions varied (P < 0.05). This study showed that the positions in which the PFM relaxes and contracts the most may vary according to the functional status of the PFM. Therefore, different PFM training positions may be preferred according to the functional status of the PFM in women with pelvic floor dysfunction. However, more study needs to be done in this subject.

Direct abdominal muscle diastasis and stress urinary incontinence in postpartum women.

Currently, there are not enough studies comparing the width of the linea alba in women with and without stress urinary incontinence in postpartum women. The primary aim of the study was to compare the width (IRD) in postpartum women with and without symptoms of stress urinary incontinence (SUI). The secondary aim of the study was to compare pelvic floor muscle morphometry in postpartum women with and without SUI symptoms. IRD distance was measured with a linear probe via 2D US. Urinary leakage symptoms were assessed by the International Consultation on Incontinence Questionnaire (ICIQ - UI SF). Symptoms of overactive bladder were assessed by the Brief Urge Urinary Incontinence Symptoms Questionnaire (OAB-q). The functional status of the pelvic floor muscles was examined by manometry and pelvic floor muscle morphometry was examined by 3D/4D US. We compared IRD distance with and without SUI symptoms in postpartum women. The group of patients with stress urinary incontinence had a greater IRD distance at rest and during exercise compared to women without stress urinary incontinence. No worse pelvic floor muscle function and morphometry was found in women with SUI compared to women without SUI.

Effects of the pilates method on the pelvic floor muscles: a systematic review

Background: Among the methods used by physiotherapists for strengthening and controlling the pelvic floor muscles, Pilates method can be mentioned. Although recent studies have investigated the effects of the method on urinary incontinence, no recent systematic literature reviews on the subject have been found. Objectives: To conduct a systematic literature review demonstrating the effects of the Pilates method on urinary incontinence.. Methods: A search was conducted in the databases MEDLINE, Scielo, LILACS, and PEDro, supplemented by a manual search. The search terms included the descriptors: urinary incontinence, Pilates method, pelvic floor strengthening, as well as these terms in English. The studies were analyzed by two independent evaluators, with no language or publication date restrictions. The methodological quality of the studies was evaluated using the PEDro scale. Results: Seven articles met the inclusion criteria and were included in this systematic review. Overall, the studies showed that there are significant results in the use of the Pilates method for urinary incontinence and pelvic floor muscle function, as well as improvements in quality of life. However, compared to conventional physiotherapy, the Pilates method is not superior, as both are effective interventions for the treatment of urinary incontinence. Conclusion: Although the Pilates method appears to be an effective intervention for the pelvic floor muscles and, consequently, improves urinary incontinence, this method is not superior to specific conventional physiotherapy targeting this musculature. However, these conclusions are based on only seven studies with low to moderate methodological quality.

Comparison of the Effects of Individualized Postpartum Pelvic Floor Rehabilitation at Different Time Points in the Early Postpartum Period

Objective: To determine the clinical value of applying individualized postpartum pelvic floor rehabilitation at different time points in the early postpartum period. Methods: 184 patients admitted to the Affiliated Hospital of Jiangsu University from February 2021 to December 2022 were included in the study. Upon admission, they were divided into two groups, a conventional group (n = 46) and an intervention group (n = 138), by the random number table method. The patients in the conventional group underwent postpartum routine rehabilitation, while those in the intervention group underwent individualized postpartum pelvic floor rehabilitation. The patients in the intervention group were further divided into intervention group 1 (6–8 weeks), intervention group 2 (8–10 weeks), and intervention group 3 (10–13 weeks) according to the time of care. The rehabilitation effects were compared between the groups. Results: The pelvic floor muscle function of the patients in the intervention group was more ideal compared with those in the conventional group, and the incidence of adverse reactions was lower among patients in the intervention group; the comparison of the above indicators was statistically significant (P &lt; 0.05); however, there was no significant difference in the relevant indicators among intervention group 1, group 2, and group 3 (P &gt; 0.05). Conclusion: Although our study showed no significant difference in the effects of individualized postpartum pelvic floor rehabilitation at different time points in the early postpartum period, individualized postpartum pelvic floor rehabilitation in the early postpartum period has definite clinical value, as it improves pelvic floor muscle function and reduces the incidence of adverse reactions.

Effect of pelvic floor muscle training on reports of urinary incontinence in obese women undergoing a low-calorie diet before bariatric surgery — protocol of a randomized controlled trial

BackgroundObesity represents a growing threat to health with multiple negative impacts including urinary incontinence. Pelvic floor muscle training (PFMT) is the first line of treatment for urinary incontinence. Both surgical and conservative weight loss results in improvement of urinary incontinence reports in obese women and we hypothesize that a low-calorie diet in combination with PFMT would result in additional beneficial effects to urinary symptoms in women with UI compared would with weight loss alone.ObjectiveTo assess the effect of a low-calorie diet plus PFMT protocol in obese women’s urinary incontinence reports.MethodsThis is a protocol for a randomized controlled trial that will include obese women reporting UI and being able to contract their pelvic floor muscles. The participants will be randomly allocated in two groups: group 1 will participate in a 12-week protocol of low-calorie diet delivered by a multi-professional team at a tertiary hospital; group II will receive the same low-calorie diet protocol during 12 weeks and will additionally participate in 6 group sessions of supervised PFMT delivered by a physiotherapist. The primary outcome of the study is self-reported UI, and severity and impact of UI on women’s quality of life will be assessed by the ICIQ-SF score. The secondary outcomes will be adherence to the protocols assessed using a home diary, pelvic floor muscle function assessed by bidigital vaginal palpation and the modified Oxford grading scale, and women’s self-perception of their PFM contraction using a questionnaire. Satisfaction with treatments will be assessed using a visual analog scale. The statistical analysis will be performed by intention to treat and multivariate analysis of mixed effects will be used to compare outcomes. The complier average causal effects (CACE) method will be used to assess adherence. There is an urgent need for a high-quality RCT to investigate if the association of a low-calorie diet and PFMT can provide a larger effect in the improvement of urinary incontinence reports in women with obesity.Trial registrationClinical Trials NCT04159467. Registered on 08/28/2021.

Relationship between pelvic floor muscle function and changes in lumbar spine and hip motion due to pelvic floor muscle contraction.

Pelvic floor muscles (PFM) are important for lumbar stability. However, the relationship between lumbar and hip motion angle changes (MAC) caused by PFM contraction and each PFM's function remains unclear. To clarify the lumbar spine and hip motion changes produced by PFM contraction and the relationship between MAC and PFM function. In 21 healthy females, motion angle was measured for prone hip extension movement using natural movement (NM), PFM contracting movement (PM), and reducing lumbar movement (RM) methods. The PFM functional indices were bladder base elevation distance, continuous bladder base elevation time, and pelvic floor location. The PM showed no significant difference in lumbar motion angle but had significantly smaller hip motion than the NM (NM; 26.1 ± 8.3, PM; 29.2 ± 11.0). MAC was significantly greater in RM (lumbar spine; 4.4 ± 3.2, hip; 5.9 ± 8.7) than in PM (lumbar spine; 0.4 ± 4.4, hip; 3.1 ± 5.1) for both the lumbar spine and hip. Lumbar spine and hip MAC of PM was significantly correlated with pelvic floor location (lumbar spine; r=-0.44, hip; r= 0.54). PFM contraction does not attenuate lumbar spine motion but reduces hip motion. MAC due to PFM contraction during lumbar movement tasks is related to the PFM functional index.

Investigation and influencing factors on pelvic floor muscle strength of 929 adult females in gynecological outpatient department

Objective: To investigate the present situation of pelvic floor muscle strength, and to analyze the factors affecting pelvic floor muscle strength. Methods: The data of patients who were admitted into the general outpatient department of gynecology, Peking University People's Hospital from October 2021 to April 2022 were collected, and the patients who met the exclusion criteria were included in this cross sectional study. The patient's age, height, weight, education level, defecation way and defecation time, birth history, maximum newborn birth weight, occupational physical activity, sedentary time, menopause, family history and disease history were recorded by questionnaire. Morphological indexes such as waist circumference, abdomen circumference and hip circumference were measured with tape measure. Handgrip strength level was measured with grip strength instrument. After performing routine gynecological examinations, the pelvic floor muscle strength was evaluated by palpation with modified Oxford grading scale (MOS). MOS grade>3 was taken as normal group and ≤3 as decreased group. Binary logistic regression was used to investigate the related factors of deceased pelvic floor muscle strength. Results: A total of 929 patients were included in the study, and the average MOS grade was 2.8±1.2. By univariate analysis, birth history, menopausal time, defecation time, handgrip strength level, waist circumference and abdominal circumference were related to the decrease of pelvic floor muscle strength (all P<0.05). By binary logistic regression analysis, the level of handgrip strength (OR=0.913, 95%CI: 0.883-0.945; P<0.001) was correlated with normal pelvic floor muscle strength; waist circumference (OR=1.025, 95%CI: 1.005-1.046; P=0.016), birth history (OR=2.224, 95%CI: 1.570-3.149; P<0.001), sedentary time> 8 hours (OR=2.073, 95%CI: 1.198-3.587; P=0.009) were associated with the decrease of pelvic floor muscle strength. Conclusions: The level of handgrip strength is related to the normal pelvic floor muscle strength of females, while the waist circumference, birth history and sedentary time>8 hours are related to the decrease of pelvic floor muscle strength of females. In order to prevent the decrease of pelvic floor muscle strength, it is necessary to carry out relevant health education, enhance exercise, improve the overall strength level, reduce daily sedentary time, maintain symmetry, and carry out comprehensive overall intervention to improve pelvic floor muscle function.

(099) A Systematic Review Investigating the Involvement of the Pelvic Floor Muscles in Sexual Function and Sexual Response

Abstract Introduction The pelvic floor muscles (PFM) have been suggested to play a key role in sexual function and sexual response in women. However, current syntheses of the evidence have been limited to interventional studies investigating the effect of modalities targeting the PFM on sexual function in women with pelvic pain and pelvic floor disorders. The literature has therefore never been critically appraised while excluding these potential confounders, which prevents to fully capture and understand the involvement of the PFM in sexual function and sexual response. Objective To examine and synthesize the available evidence on: i) the effects of PFM training on sexual function in women without pelvic pain or pelvic disorders, ii) the association between PFM function and sexual function/response and iii) the differences in the PFM function between women with and without sexual dysfunctions. Methods Electronic databases including Medline, Cochrane, CENTRAL, CINAHL, Psycinfo, Sportdiscuss, AMED, Scopus and EMBASE were searched using a peer-reviewed search strategy. We also performed a hand search of the references of all relevant articles and a grey literature search. Main outcomes included sexual function (self-reported questionnaire), sexual response (physiological test) and PFM function (strength and tone assessed with various assessment tools). We included interventional studies (randomized controlled trials and non-randomized studies) investigating the effects of PFM training on sexual outcomes as well as observational studies examining the association between PFM function (strength and tone) and sexual outcomes or the differences in PFM function in women with and without sexual dysfunctions. Quality of selected studies was assessed using the Mixed Methods Appraisal Tool by a team of two reviewers and disagreements were resolved by consensus or involvement of a third-party. Results The literature search resulted in 33 eligible studies including 14 interventional studies and 19 observational studies. Most studies (31/33) were of moderate quality or higher. Overall, 10 of the 14 interventional studies reported that PFM training had a significant effect on sexual function. Of the 11 observational studies investigating the association between PFM function and sexual function, 8 showed significant correlations (ranging from weak to strong) with sexual satisfaction, lubrication, arousal, orgasm or overall sexual function. Of the observational studies, 7 supported the involvement of the PFM as part of the sexual response (i.e. in the arousal and orgasm phases). Regarding the 3 studies evaluating the differences in the PFM function of women with and without sexual dysfunctions, the results were conflicting. Conclusions Findings of this review support the involvement of the PFM in sexual function and in sexual response in women without pain and pelvic dysfunctions. This review supports the need to further investigate modalities targeting the PFM as part of the management for sexual dysfunctions. Disclosure No

Pelvic Floor Muscle Function and Its Relationship with Post-Prostatectomy Incontinence

ObjectivesPost-prostatectomy incontinence (PPI) is a common condition, but the underlying mechanisms are not completely understood. Transperineal ultrasound (TPUS) assessment of voluntary pelvic floor muscle (PFM) function may be associated with PPI. This study investigates the relationship between PPI and pre- and postoperative displacement of anatomical landmarks related to PFM function.MethodsThis was a prospective longitudinal cohort study of 40 patients undergoing robotic-assisted radical prostatectomy (RARP) by a high-volume single surgeon. All patients underwent PFM training pre- and postoperatively. TPUS was used to obtain sagittal images of pelvic structures during maximal voluntary PFM contractions: (1) preoperatively, (2) 3 weeks postoperatively, and (3) 6 weeks postoperatively. TPUS images were analyzed to calculate displacement of anatomical landmarks associated with activation of striated urethral sphincter (SUS), bulbocavernosus muscle (BC), and puborectalis muscle (PR). Continence was assessed at 3 and 6 weeks postoperatively, defined as use of ≤ 1 pad/day. The relationship of continence to the displacement of SUS, BC, and PR was analyzed.ResultsSUS, BC, and PR displacement decreased significantly 3 weeks postoperatively (P = 0.042, P = 0.002, P &lt; 0.001, respectively). Continent men exhibited significantly greater SUS displacement (median, 5.13 mm) than incontinent men (median, 3.90 mm) 3 weeks postoperatively (P = 0.029). Between 3 and 6 weeks following RARP, there was significant increase in SUS, BC, and PR displacement (P = 0.003, P = 0.030, P &lt; 0.001, respectively).ConclusionsA significant decrease in PFM function occurs following RARP, with a subsequent recovery of postoperative PFM function between 3 and 6 weeks post-procedure in men who undergo PFM training. SUS activation was significantly greater in continent patients compared to incontinent patients at 3 weeks following RARP.

Retrospective study to assess the effect of epidural analgesia on labor progress and women’s pelvic floor muscle from the perspective of electromyography

Objective Epidural analgesia has been widely used as a form of pain relief during labor and its safety has been gradually recognized. However, few studies of the effect of epidural analgesia on the pelvic floor are known. Thus, we aim to analyze the effect of epidural analgesia on labor progress and women’s pelvic floor muscle from the perspective of electromyography systematically. In addition, obstetric risk factors for dysfunction of pelvic floor muscle after vaginal delivery were also evaluated. Methods Childbirth data of 124 primiparas who gave first birth vaginally in our hospital and their pelvic floor function assessment results at postpartum 7 weeks were retrospectively collected. Pelvic floor muscle electromyogram screenings were performed by a biofeedback electro-stimulant therapy instrument. Results There was no significant difference in the percentage of episiotomy, forceps, artificial rupturing membrane, and the application of oxytocin, except perineal laceration. Woman who implemented epidural analgesia experienced a longer stage of labor. Statistically, there was no significant difference in the total score and pelvic floor muscle strength. The risk factors for the value of the pre-rest phase include the age of pregnant women, the fetal weight, and the length of the second stage while the value of the post-rest phase was only associated with the fetal weight and the length of the second stage. In addition, the value of type I muscles was associated with the gravida and fetal weight while the value of type II muscles was only associated with forceps. The sustained contraction was correlated with the gravida and the total scores had a significant correlation with forceps. Conclusion Epidural analgesia during labor is approved to be a safe and effective procedure to relieve pain with very low side effects on the mode of labor and pelvic floor muscle. The assessment of pelvic floor muscle before pregnancy is beneficial in guiding the better protection of pelvic floor muscle function. According to the evaluation results, the doctors can control the associated risk factors as much as possible to reduce the injury of pregnancy and parturition to the pelvic floor.

Pelvic Floor Muscle Training versus Functional Magnetic Stimulation for Stress Urinary Incontinence in Women: A Randomized Controlled Trial.

There is strong evidence that specific pelvic floor muscle training (PFMT) reduces stress urinary incontinence (SUI), but the application of functional magnetic stimulation (FMS) is still under discussion. To evaluate and compare the effects of FMS and PFMT on pelvic floor muscle function, urinary incontinence symptoms and quality of life (QoL) in women with SUI. A randomized controlled, parallel-group trial was executed in an outpatient physical medicine and rehabilitation centre. The study included 68 women and was fully completed by 48 women (n = 24 in each group) aged 29-49 years, with SUI, who were randomly assigned to PFMT and FMS groups. The symptoms of urinary incontinence and their impact on quality of life were assessed with two questionnaires: the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF) and the Incontinence Impact Questionnaire-Short Form (IIQ-7). Perineometer (Pelvexiser) was used to measure the resting vaginal pressure, pelvic floor muscle (PFM) strength and endurance. All outcome measures were taken at baseline and after 6 weeks of interventions. Cohen's effect size (d) was calculated. A significant improvement (p < 0.05) of ICIQ-SF and IIQ-7 was observed in both groups with a high effect size in the PFMT group (d = 1.56 and d = 1.17, respectively) and the FMS group (d = 1.33 and d = 1.45, respectively). ICIQ-SF and IIQ-7 scores did not differ significantly between groups after the 6-week treatment period. Resting vaginal pressure, PFM strength and endurance increased (p < 0.05) in both groups with a medium (d = 0.52) to large (d = 1.56) effect size. No significant difference between groups was found in any measurement of perineometry. PFMT and FMS significantly improved SUI symptoms and the quality of life of the study participants. None of the applied interventions was superior to the other in the short-term effect.