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Related Experiment Videos

Levator ani function before and after childbirth

U M Peschers1, G N Schaer, J O DeLancey

  • 1Department of Obstetrics and Gynaecology, Kantonsspital Luzern, Switzerland.

British Journal of Obstetrics and Gynaecology
|October 6, 1997
PubMed
Summary

Pelvic floor muscle strength significantly decreases after vaginal birth but generally recovers within two months postpartum. This study assessed strength using palpation, perineometry, and ultrasound in women after vaginal birth or C-section.

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Area of Science:

  • Obstetrics and Gynecology
  • Pelvic Floor Physical Therapy
  • Women's Health Research

Background:

  • Pelvic floor muscle (PFM) strength is crucial for female continence and support.
  • Vaginal birth can impact PFM function, but recovery patterns require detailed evaluation.

Purpose of the Study:

  • To quantitatively assess PFM strength changes before and after vaginal childbirth.
  • To compare PFM strength recovery in women who underwent vaginal birth versus elective Cesarean delivery.

Main Methods:

  • A prospective, repeated-measures study design was employed.
  • PFM strength was measured using palpation, perineometry, and perineal ultrasound.
  • Measurements were taken during pregnancy, early postpartum (3-8 days), and late postpartum (6-10 weeks).

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Main Results:

  • Women after vaginal birth showed significantly reduced PFM strength in early postpartum compared to antepartum values.
  • No significant strength reduction was observed in the Cesarean delivery control group.
  • While palpation and ultrasound measures returned to baseline by late postpartum, intravaginal pressure remained lower in primiparae.

Conclusions:

  • Vaginal childbirth temporarily impairs PFM strength.
  • Most women experience PFM strength recovery within two months postpartum.
  • Persistent deficits in intravaginal pressure may occur, particularly in first-time mothers.