The Effect of Pelvic Floor Muscle Training on Health-Related Quality of Life in Postmenopausal Women With Genitourinary Syndrome: A Systematic Review and Meta-Analysis

Background: Genitourinary syndrome is commonly reported in postmenopausal women. Kegel's exercise is a noninvasive therapy that improves pelvic floor muscle parameters. However, the effect of Kegel's exercise on health-related quality of life (HRQoL) in postmenopausal women with genitourinary syndrome has not been synthesized or shown. Purpose: This study was designed to systematically review and analyze the previous literature to determine whether Kegel's exercise enhances HRQoL in postmenopausal women with genitourinary syndrome of menopause. Methods: A systematic review and meta-analysis of randomized controlled trials was conducted, and six databases were searched, including Embase, MEDLINE, Cochrane, CINAHL, Web of Science, and Scopus, from their dates of inception to November 2021. Eligible studies evaluated the effects of Kegel's exercise on HRQoL in postmenopausal women with urinary, sexual, or genital symptoms. Review Manager software was used to perform the meta-analysis using a random-effects model. Chi-square and I^2 tests were used to evaluate heterogeneity among the studies. Meta-analysis was performed based on the symptoms (i.e., urinary, sexual, and genital) identified in the quality-of-life questionnaires. Results: This systematic review covered five studies with 268 participants. The research appraisal found most of these studies had a low risk of bias. The intervention periods ranged from 4 to 12 weeks. Compared with non-Kegel's exercise or regular activity, Kegel's exercise was found to significantly improve HRQoL-related urinary symptoms (three studies, standardized mean difference = -0.95, 95% CI [-1.35, -0.54], I^2 = 0%). However, the effect of this exercise on HRQoL-related sexual symptoms did not differ from non-Kegel's exercise or regular activity (two studies, standardized mean difference = 1.11, 95% CI [-0.25, 2.47], I^2 = 94%). None of the covered studies examined the effect of Kegel's exercise on HRQoL-related genital symptoms. Conclusions/Implications for Practice: Kegel's exercise is an effective intervention for improving HRQoL-related urinary symptoms in postmenopausal women. However, there remains insufficient evidence to assess the effectiveness of Kegel's exercise on HRQoL-related genital symptoms in this population. The results support using Kegel's exercise as a useful intervention to manage urinary symptoms in postmenopausal women.