Background <p>Conflicting evidence and controversy exist regarding a correlation between parity and pelvic floor muscle strength (PFMS). The current research explores whether the type of childbirth, number of pregnancies, and natural aging correlate with PFMS in healthy, continent women. Gaining such insights could significantly improve the prevention and treatment of pelvic floor muscle dysfunction.</p> Methods <p>In a cross-sectional study, a total of 140 healthy women were prospectively evaluated and divided into four groups: G1 (<i>n</i> = 34), aged 30–40 years; G2 (<i>n</i> = 38), aged 41–50; G3 (<i>n</i> = 35), aged 51–60; and G4 (<i>n</i> = 33), over 60 years old. Demographic data and body mass index (BMI) were collected using a clinical questionnaire. Subjective PFMS was assessed by transvaginal digital palpation (TDP), and objective measurements were obtained with a portable perineometer.</p> Results <p>BMI was significantly higher in G4 than in G1, and BMI showed a positive linear relationship with age. The number of pregnancies was higher in G4 than in G2, and vaginal delivery was more common in G4 than in G1, G2, and G3. No statistical difference in PFMS was found among the groups, whether assessed by TDP or perineometer. There was no negative linear relationship between PFMS and parity or the number of vaginal deliveries.</p> Conclusions <p>The current study showed no significant association between PFMS and parity or type of childbirth in healthy, continent women. A future longitudinal study design should control for factors related to the teams and centers involved in delivering assistance, including pre- and post-delivery imaging evaluations.</p>

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Impact of parity and delivery type on pelvic floor muscle strength: a cross-sectional study in healthy continent women

  • Dulcegleika V. B. Sartori,
  • Paulo R. Kawano,
  • Hamilto A. Yamamoto,
  • Leonardo Oliveira Reis,
  • João L. Amaro

摘要

Background

Conflicting evidence and controversy exist regarding a correlation between parity and pelvic floor muscle strength (PFMS). The current research explores whether the type of childbirth, number of pregnancies, and natural aging correlate with PFMS in healthy, continent women. Gaining such insights could significantly improve the prevention and treatment of pelvic floor muscle dysfunction.

Methods

In a cross-sectional study, a total of 140 healthy women were prospectively evaluated and divided into four groups: G1 (n = 34), aged 30–40 years; G2 (n = 38), aged 41–50; G3 (n = 35), aged 51–60; and G4 (n = 33), over 60 years old. Demographic data and body mass index (BMI) were collected using a clinical questionnaire. Subjective PFMS was assessed by transvaginal digital palpation (TDP), and objective measurements were obtained with a portable perineometer.

Results

BMI was significantly higher in G4 than in G1, and BMI showed a positive linear relationship with age. The number of pregnancies was higher in G4 than in G2, and vaginal delivery was more common in G4 than in G1, G2, and G3. No statistical difference in PFMS was found among the groups, whether assessed by TDP or perineometer. There was no negative linear relationship between PFMS and parity or the number of vaginal deliveries.

Conclusions

The current study showed no significant association between PFMS and parity or type of childbirth in healthy, continent women. A future longitudinal study design should control for factors related to the teams and centers involved in delivering assistance, including pre- and post-delivery imaging evaluations.