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Pelvic floor muscle strength is low after giving birth if vitamin D deficient – March 2015

Association of antepartum vitamin D levels with postpartum pelvic floor muscle strength and symptoms

International Urogynecology Journal, March 2015
S. Aydogmus serpilaydogmus at gmail.com, S. Kelekci, H. Aydogmus, M. Demir, B. Yilmaz, R. Sutcu
1. Department of Gynaecology and Obstetrics, İzmir Katip Çelebi University School of Medicine, İzmir, Turkey
4. Ilica mah. Zeytin sok. No.20/20. 35320, Narlıdere, Izmir, Turkey
2. Department of Gynecology and Obstetrics, Izmir Atatürk Research and Training Hospital, Izmir, Turkey
3. Department of Biochemistry, İzmir Katip Çelebi University School of Medicine, İzmir, Turkey

Introduction and hypothesis
Vitamin D affects skeletal muscle strength and functions via various mechanisms. Strength and/or functional dysfunctions of the pelvic floor muscles may be associated with the distortion of pelvic floor functions. We hypothesized that vitamin D deficiency may contribute to pelvic floor dysfunction (PFD) by affecting pelvic floor muscle strength (PFMS). The aim of this study was to assess the effect of vitamin D deficiency during pregnancy on postpartum PFMS.
This cross-sectional study was conducted in a university hospital. One hundred and eighty pregnant women were admitted to our hospital in their third trimester and compared with 156 healthy nulliparous women. Venous blood samples for examining vitamin D levels were taken from each participant and stored at −80 °C. At 8–10 weeks postpartum, patients were invited to the hospital, asked about their PFD symptoms, and PFMS was measured using a perineometer.
There was no statistical significance among groups regarding mean age, maternal age, and weight at delivery. Postpartum PFMS and duration in vitamin D-deficient women were significantly lower than those without the deficiency. Vitamin D-deficient vaginal delivery cases (group I) had a postpartum PFMS average of 21.96 ± 7.91 cm-H2O, nonvitamin D-deficient normal delivery cases (group III) had a PFMS of 29.66 ± 10.3 cm-H2O (p = 0.001).
In the cesarean delivery groups, vitamin D-deficient (group II) and nonvitamin D-deficient (group IV) cases had PFMS values of 32.23 ± 9.66 and 35.53 ± 15.58 cm-H2O respectively (p = 0.258).
Lower vitamin D levels in the third trimester correlates with decreased PFMS.


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