Therapeutic exercise to improve pelvic floor muscle function in a female sporting population: a systematic review and meta-analysis

Pelvic Floor Muscle Training Interventions in Female Athletes: A Systematic Review and Meta-analysis

CONTEXT

Athletes are almost 3 times more at risk of experiencing urinary incontinence (UI) than sedentary women, with prevalence rates varying from 10.9% in low-impact sports such as cycling to 80% when engaging in high-impact sports such as trampoline gymnastics. To treat UI, pelvic floor muscle (PFM) training (PFMT) is recommended as a first line of treatment.

OBJECTIVE

The aim of the present study was to perform a meta-analysis of the available literature on the efficacy of PFMT interventions in young, nulliparous female athletes.

DATA SOURCES

A literature research was conducted using PubMed, Sport Discus, and Web of Science.

STUDY SELECTION

The inclusion criteria were studies with PFMT intervention in female athletes or recreationally active women. Interventions could be carried out for treatment or prevention of pelvic floor dysfunctions.

STUDY DESIGN

Systematic review with meta-analysis.

LEVEL OF EVIDENCE

Level 5.

DATA EXTRACTION

A descriptive analysis of the articles included in the systematic review was carried out. Meta-analyses could be performed on 6 of the included articles, evaluating the maximal voluntary contraction (MVC) of the PFMs, the amount of urinary leakage (AUL), and the vaginal resting pressure (VRP). Random-effects model and standardized mean differences (SMD) ± 95% CI were reported.

RESULTS

The meta-analysis showed that PFMT produced a significant increase in MVC (SMD, 0.60; 95% CI, 0.11 to 1.08; P = 0.02) and a significant reduction of AUL (SMD, -1.13; 95% CI, -1.84 to -0.41; P < 0.01) in female athletes. No effects were shown in VRP (SMD, -0.05; 95% CI, -1.27 to 1.17; P = 0.93).

CONCLUSION

PFMT is shown to be effective in increasing PFM strength and reducing urine leakage in female athletes, being a powerful tool to prevent and treat pelvic floor dysfunction in this population.

Pelvic Floor Muscle Training on Stress Urinary Incontinence in Power- and Weightlifters: a Pilot Study

INTRODUCTION AND HYPOTHESIS

Stress urinary incontinence (SUI) is defined as involuntary leakage of urine on physical effort and is prevalent among power- and weightlifters. However, there is scant knowledge on treatment options for this population. The aim of this pilot study was to evaluate the potential outcomes and feasibility of a pelvic floor muscle training (PFMT) program on SUI in nulliparous female power- and weightlifters.

METHODS

This was a case-series study, including one weightlifter and two powerlifters aged 21-32 years. The participants conducted 12 weeks of PFMT at home, with weekly follow-up by a physiotherapist. Change in total score of the International Consensus of Incontinence Questionnaire Urinary Incontinence Short Form (ICIQ-UI-SF) was the primary outcome. Secondary outcome was perceived change assessed by the Patient Global Impression of Improvement (PGI-I) Scale and impact on sport participation. PFM strength, endurance, and resting pressure was measured using vaginal manometry. Feasibility was evaluated as adherence to training and self-efficacy (Self Efficacy Scale for Practicing Pelvic Floor Exercises).

RESULTS

One athlete reduced their ICIQ-UI-SF score and experienced improvement in symptoms. One athlete reported no change, and one reported a worsening of symptoms. All three participants improved PFM strength and endurance, completed the testing, and 12 weeks of PFMT, but adherence varied between 40 and 80%. Participants reported a lack of time and energy and forgetting to perform the exercises, as reasons for low adherence.

CONCLUSION

There were varying effects of a 12-week PFMT program on SUI in three strength athletes. The results can create the basis for a future randomized controlled trial.

Pelvic floor muscle training in female functional fitness exercisers: an assessor-blinded randomised controlled trial

OBJECTIVE

Stress urinary incontinence (SUI) is common among females during functional fitness training, such as CrossFit. The aim of this study was to assess the effect of pelvic floor muscle training (PFMT) on SUI in female functional fitness exercisers.

METHODS

This was an assessor-blinded randomised controlled trial with a PFMT group (n=22) and a control group (n=25). The PFMT group followed a 16-week home-training programme with 3 sets of 8-12 maximum pelvic floor muscle (PFM) contractions daily and weekly follow-up/reminders by phone. The primary outcome was change in a total score of the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI-SF). The secondary outcomes were perceived change of symptoms of SUI, change of PFM strength measured by vaginal manometry and symptoms of anal incontinence (AI) and pelvic organ prolapse (POP).

RESULTS

47 women, mean age of 33.5 years (SD: 8.1), participated. At 16 weeks, there was a mean difference between groups of -1.4 (95% CI: -2.6 to -0.2) in the change of the ICIQ-UI-SF score in favour of the PFMT group. The PFMT group completed a mean of 70% (SD: 23) of the prescribed protocol. 64% in the PFMT group versus 8% in the control group reported improved symptoms of SUI (p<0.001, relative risk: 7.96, 95% CI, 2.03 to 31.19). There were no group differences in the change of PFM strength or AI/POP symptoms.

CONCLUSION

A 16-week home-training programme of the PFM led to improvements in SUI in female functional fitness exercisers. However, PFM strength and AI and POP symptoms did not improve significantly in the PFMT group compared with the control group.

Trials and tribulations of transparency related to inconsistencies between plan and conduct in peer-reviewed physiotherapy publications: A methodology review

RATIONALE

The physiotherapy profession strives to be a leader in providing quality care and strongly recognizes the value of research to guide clinical practice. Adherence to guidelines for research reporting and conduct is a significant step towards high-quality, transparent and reproducible research.

AIM/OBJECTIVE

Assess integrity between planned and conducted methodology in randomized controlled trials (RCTs) and systematic reviews (SRs) published in physiotherapy journals.

METHODS

Eighteen journals were manually searched for RCTs and SRs published from 1 July 2021 through 31 December 2021. Studies were included if the journal or specific study was indexed in PubMed and published/translated in English. Descriptive statistics determined congruence between preregistration data and publication.

RESULTS

Forty RCTs and 68 SRs were assessed. Forty-three SRs included meta-analysis (MA). Of the 34 registered RCTs, 7 (20.6%) had no discrepancy between the registration and publication. Two trials (5.9%) addressed all discrepancies, 4 (11.8%) addressed some and 21 (61.8%) did not address any discrepancies. Of the 36 registered MAs, 33 (91.7%) had discrepancies between the registration and publication. Two (5.6%) addressed all discrepancies and three (8.3%) had no discrepancies. Eight SRs without MA published information not matching their registration, and none provided justification for the discrepancies.

CONCLUSION

Most RCTs/SRs were registered; the majority had discrepancies between preregistration and publication, potentially influencing the outcomes and interpretations of findings. Journals should require preregistration and compare the submission with the registration information when assessing publication suitability. Readers should be aware of these inconsistencies and their implications when interpreting and translating results into practice.

Women's preferences for pelvic floor screening in sport and exercise: a mixed-methods study integrating survey and interview data in Australian women

OBJECTIVES

One in two women experiencing pelvic floor (PF) symptoms stop playing sport or exercising. The study examines the perspective of women with PF symptoms to inform acceptable screening practices within sport and exercise settings.

METHODS

Explanatory, sequential, mixed-methods design. Phase 1: survey of 18-65 years, symptomatic, Australian women (n=4556). Phase 2: semistructured interviews with a subset of survey participants (n=23). Integration occurred through connection of phases (study design, sampling) and joint display of data.

RESULTS

Findings are represented in three threads: (1) 'women (not) telling'; a majority of women had told no-one within a sport or exercise setting about their PF symptoms due to shame/embarrassment, lack of pelvic health knowledge and not wanting to initiate the conversation, (2) 'asking women (screening for PF symptoms)'; women endorsed including PF symptom questions within existing sport and exercise screening practices but only when conducted in a respectful and considered manner and (3) 'creating safety'; professionals can assist women to disclose by demonstrating expertise, trustworthiness and competency. If health and exercise professionals are provided with appropriate training, they could raise pelvic health awareness and promote a supportive and safe sport and exercise culture.

CONCLUSION

Women with PF symptoms support health and exercise professionals initiating conversations about PF health to normalise the topic, and include PF symptoms among other pre-exercise screening questions. However, women should be informed on the relevance and potential benefits of PF screening prior to commencing. Safe screening practices require building trust by providing information, gaining consent, displaying comfort and genuine interest, and being knowledgeable within one's scope of practice to the provision of advice, exercise modifications and referral as appropriate.

Does a Kegel Exercise Program Prior to Resistance Training Reduce the Risk of Stress Urinary Incontinence?

This comparative pre-post intervention study investigated the feasibility and benefits of Kegel exercises amongst incontinent women, prior to commencing resistance training (RT), to reduce the risk of stress urinary incontinence (SUI) compared to a group of women without prior Kegel exercises (KE). Incontinence severity index (ISI) score, pelvic floor muscle strength (PFMS), and body composition (such as body mass index (BMI), fat, and muscle mass), were obtained pre and post intervention. Results demonstrated that RT reduced SUI to a significantly greater extent only if preceded by KE as was observed in the Kegel exercise plus RT group (KE + RT) over time. The improvements in total ISI in both the KE + RT and RT groups were large (d = 1.50 and d = 1.17 respectively). A two-way ANOVA indicated a statistically significant improvement in average PFMS within the KE + RT group over time and between the two groups. A positive correlation was found between the average strength of pelvic floor muscles and SUI. Participants in KE + RT group demonstrated a significant increase in muscle mass (p ≤ 0.001) and concomitant reduction in fat mass (p = 0.018). This study determined a dedicated program of KE preceding a RT program improved average pelvic floor muscle strength and was effective in reducing SUI among incontinent women.

Combined Ketogenic Diet and Walking Exercise Interventions in Community Older Frailty and Skeletal Muscle Sarcopenia

The ketogenic diet and walking exercise training interventions are two key public health lifestyle factors. The potential of combined lifestyle factors interventions focused on getting to compliance in diet and exercise. A balanced ketogenic diet and regular exercise interventions is key modifiable factor to the prevention and management of community older frailty and skeletal muscle sarcopenia. Influence health across the lifespan and reduction of the risk of premature death through several biochemistry mechanisms. Community older group’s lifestyle factors interventions contribute identity in their natural living environment. While the older health benefits of walking exercise training interventions strategies are commonly to study, combining ketogenic diet and walking exercise interventions can induce greater benefits in community older groups.

Effects of visceral manipulation associated with pelvic floor muscles training in women with urinary incontinence: A randomized controlled trial

AIMS

To compare the effects of manual visceral therapy (MVT) associated with pelvic floor muscle training (PFMT) on urinary incontinence (UI) symptoms, vaginal resting pressure, and maximum voluntary contraction of the pelvic floor muscles (PFM).

METHODS

A double-blinded randomized controlled trial of 5 weeks duration with two active intervention arms: PFMT + MVT and PFMT + manual sham therapy (MST). Participants were women over 18 years of age with complaint or diagnosis of UI symptoms. The primary outcome was the severity of UI symptoms, assessed by the International Consultation on Incontinence Questionnaire - Short Form. The secondary outcomes measures included the vaginal resting pressure and the maximum voluntary contraction of PFM assessed by digital manometry.

RESULTS

Fifty-two incontinent women participated in the study. There was no significant difference between groups in UI symptoms (F (1.74, 86.9) = 0.406; p = 0.638), vaginal resting pressure (mean difference -1.5 cmH₂0 [95% confidence interval [CI] -4.5 to 1.5; p = 0.33]), and maximum voluntary contraction of PFM (median 0.0 cmH₂0 [25%-75% interquartile range 0.0-5.6; p = 0.12]) after the intervention period.

CONCLUSIONS

Combining MVT with PFMT was not more effective than PFMT alone in reducing UI symptoms, in change vaginal resting pressure and maximum voluntary contraction of PFM. Due to the limitations of the study, further investigations are still needed to confirm these findings.