Association Between Pelvic Floor Muscle Strength and Sexual Function in Postmenopausal Women.

INTRODUCTION: Although pelvic floor muscle (PFM) weakness can be associated with pelvic floor dysfunctions, knowledge about the relationship with sexual dysfunction is limited. AIM: The aim of this study was to evaluate the association between PFM strength and sexual function in postmenopausal women. METHODS: An analytical cross-sectional study was conducted on 226 sexually active heterosexual women aged 45-65 years with amenorrhea >12 months and without pelvic floor disorders. The Female Sexual Function Index (FSFI) was used for the evaluation of sexual function (total score ≤26.5 indicating sexual dysfunction). PFM strength was assessed by bidigital vaginal palpation using the modified Oxford scale (score 0-5) and was categorized into nonfunctional (scores 0-1, without contraction) and functional (scores 2-5, with contraction). Three-dimensional transperineal ultrasound was used to evaluate total urogenital hiatus area, transverse and anteroposterior diameters, and levator ani muscle thickness. MAIN OUTCOME MEASURE: The main outcome measure was to determine the relationship between sexual dysfunction and PFM strength. RESULTS: The participants were classified as functional PFM (n = 143) and nonfunctional PFM (n = 83). There were no differences between groups in clinical and anthropometric parameters. A higher percentage of menopausal hormone therapy users was observed in the group with functional PFM (39.2%) compared to the nonfunctional group (24.1%; P = .043). Women classified as functional PFM exhibited greater levator ani muscle thickness than those classified as nonfunctional (P = .049). Women with nonfunctional PFM had poorer sexual function in the desire (P = .005), arousal (P = .001), and orgasm (P = 0.006) domains and in total FSFI score (P = .006) compared to the functional group. There was a weak positive correlation of PFM strength with the desire (r = 0.35; P = .0003), arousal (r = 0.21; P = .013), and orgasm (r = 0.23; P = .033) domains and with total FSFI score (r = 0.28; P = .004). Ultrasonographic levator ani muscle thickness showed a weak positive correlation with PFM strength (r = 0.21; P = .046) and with the arousal domain (r = 0.23; P = .044). Risk analysis adjusted for age, time since menopause, parity, and body mass index showed a lower risk of sexual dysfunction in menopausal hormone therapy users (odds ratio = 0.26; 95% CI 0.11-0.60; P = .002) and in women with greater levator ani muscle thickness (odds ratio = 0.85; 95% CI 0.73-0.98; P = .025). CLINICAL IMPLICATIONS: The maintenance of PFM strength in the climacteric period is an important factor in postmenopausal women's sexual function. STRENGTH & LIMITATIONS: The main strength of the study is that, to our knowledge, this is the first study that evaluated the correlation of PFM strength and 3D transperineal ultrasound with different domains of sexual function in postmenopausal women. The main limitation is the cross-sectional design does not permit to establish a cause-effect relationship. CONCLUSION: Postmenopausal women with PFM dysfunction have poorer sexual function than women with functional PFM. Omodei MS, Marques Gomes Delmanto LR, Carvalho-Pessoa E, et al. Association Between Pelvic Floor Muscle Strength and Sexual Function in Postmenopausal Women. J Sex Med 2019;16:1938-1946.

Low pretreatment serum concentration of vitamin D at breast cancer diagnosis in postmenopausal women.

OBJECTIVE: The aim of the study was to evaluate the rate of and risk factors for low pretreatment vitamin D (VitD) levels in postmenopausal breast cancer (BC) women, compared with postmenopausal women without BC. METHODS: A cross-sectional clinical study was conducted to compare 209 women with BC (case group) to 418 women without BC (control group), age range: 45 to 75 years. The case group consisted of women diagnosed with BC, amenorrhea ≥12 months, aged ≥45 years, without use of medication or clinical conditions that might interfere with VitD levels. The control group consisted of women with amenorrhea ≥12 months, aged ≥45 years, without BC. The groups were matched for age and time since menopause, at a case: control ratio of 1:2. Serum 25-hydroxyvitamin-D [25(OH)D] concentration was measured in all women 10 to 20 days after BC diagnosis and before the proposed treatment. Serum levels ≥30 ng/mL were defined as sufficient. The Student's t test or gamma distribution, χ test, and logistic regression (odds ratio, OR) were used for statistical analysis. RESULTS: The BC group had a higher body mass index (BMI) and higher percentage of obesity than the control group (57.4% vs 40.2%, P < 0.0001). In addition, rates of insufficient (20-29 ng/mL) and deficient (<20 ng/mL) 25(OH)D levels were higher in BC patients than in controls (55.6% vs 49.3%, P = 0.039 and 26.2% vs 20.3%, P = 0.018), respectively. In risk analysis (adjusted for age, time since menopause, and BMI), BC patients had a 1.5-fold higher risk of developing low VitD levels (OR = 1.52, 95% CI, 1.04-2.22, P = 0.029) than women without BC. CONCLUSIONS: Postmenopausal women had an increased risk of VitD deficiency at the time of BC diagnosis, associated with a higher rate of obesity, than women of the same age group without cancer.

Vitamin D deficiency is associated with metabolic syndrome in postmenopausal women.

OBJECTIVE: To evaluate the association between vitamin D (VD) deficiency and risk factors for metabolic syndrome (MetS) in postmenopausal women. STUDY DESIGN: Observational, cross-sectional cohort study. MAIN OUTCOME MEASURES: In this study, 463 women, aged 45-75 years, with amenorrhea >12months, without VD supplementation or established cardiovascular disease were included. Clinical and anthropometric data were collected. Biochemical parameters, including total cholesterol (TC), HDL, LDL, triglycerides, glucose, insulin and 25-hydroxyvitamin-D [25(OH)D] were measured. Women meeting three or more of the following criteria were diagnosed with MetS: waist circumference >88cm, triglycerides ≥150mg/dL, HDL <50mg/dL, blood pressure ≥130/85mmHg and glucose ≥100mg/dL. Serum 25(OH)D levels were classified as sufficient (≥30ng/mL), insufficient (20-29ng/mL) or deficient (<20ng/mL). ANOVA, chi-square test and logistic regression (odds ratio, OR) were used for statistical analysis. RESULTS: Serum 25(OH)D levels were sufficient in 148 women (32.0%), insufficient in 151 (32.6%) and deficient in 164 (35.4%). Women with low 25(OH)D levels had higher TC, triglycerides, insulin and HOMA-IR levels (p<0.05). MetS was detected in 57.8% (182/315) of women with hypovitaminosis D (insufficient and deficient) and in 39.8% (59/148) of those with sufficient VD​​ (p=0.003). In a multivariate logistic regression analysis, a low 25(OH)D level (<30ng/mL) was significantly associated with MetS (OR1.90, 95%CI=1.26-2.85), high triglyceride levels (OR1.55, 95%CI=1.13-2.35), and low HDL levels (OR1.60, 95%CI=1.19-2.40) (p<0.05) compared with women with sufficient 25(OH)D levels, after adjusting for age, time since menopause, body mass index, smoking and physical exercise. The mean concentration of 25(OH)D decreased with increasing numbers of MetS components (p=0.016). CONCLUSIONS: VD deficiency in postmenopausal women was associated with a higher prevalence of MetS. Women with VD deficiency had a higher risk of MetS, hypertriglyceridemia and low HDL than those with adequate levels.

Effect of isolated vitamin D supplementation on the rate of falls and postural balance in postmenopausal women fallers: a randomized, double-blind, placebo-controlled trial.

OBJECTIVE: To evaluate the effect of isolated vitamin D supplementation (VITD) on the rate of falls and postural balance in postmenopausal women fallers. METHODS: In this double-blind, placebo-controlled trial, 160 Brazilian younger postmenopausal women were randomized into two groups: VITD group, vitamin D3 supplementation 1,000 IU/day/orally (n = 80) and placebo group (n = 80). Women with amenorrhea at least 12 months, age 50 to 65 years, and a history of falls (previous 12 months) were included. Those with neurological or musculoskeletal disorders, vestibulopathies, drugs use that could affect balance and osteoporosis were excluded. The intervention time was 9 months. Postural balance was assessed by stabilometry (computerized force platform) and investigation on the occurrence/recurrence of falls was performed by interviews. The plasma concentration of 25-hydroxyvitamin D [25(OH)D] was measured by high-performance liquid chromatography. Statistical analysis was achieved by intention-to-treat, using analysis of variance, Student's t test, Tukey test, chi-square, and logistic regression. RESULTS: After 9 months, mean values of 25(OH)D increased from 15.0 ±â€Š7.5 ng/mL to 27.5 ±â€Š10.4 ng/mL (+45.4%) in the VITD group, and decreased from 16.9 ±â€Š6.7 ng/mL to 13.8 ±â€Š6.0 ng/mL (-18.5%) in the placebo group (P < 0.001). The occurrence of falls was higher in the placebo group (+46.3%) with an adjusted risk of 1.95 (95% confidence interval [CI] 1.23-3.08) times more likely to fall and 2.80 (95% CI 1.43-5.50) times higher for recurrent falls compared to the VITD group (P < 0.001). There was reduction in body sway by stabilometry, with lower amplitude of antero-posterior (-35.5%) and latero-lateral (-37.0%) oscillation, only in the VITD group (P < 0.001). CONCLUSIONS: In Brazilian postmenopausal women fallers, isolated vitamin D supplementation for 9 months resulted in a lower incidence of falls and improvement in postural balance.