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NCT Number: NCT07081321

The Effect of Different Delivery Positions on Pelvic Floor Function.

This study is a cohort clinical study. Baseline data were collected from cases recruited at pregnancy, and the eligible subjects were grouped into 3 groups according to different delivery position including supine position group, upright position group, and lateral position group. Different delivery positions along with respectively timeand obstetric conditions were recorded at delivery. Pelvic floor function assessments were performed at postpartum.

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Key information

Conditions

Stress Urinary Incontinence (SUI) Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Lower Urinary Tract Symptoms Male Urogenital Diseases Pathological Conditions, Signs and Symptoms Signs and Symptoms Urinary Incontinence Urinary Incontinence, Stress Urination Disorders Urogenital Diseases Urologic Diseases Urological Manifestations

Age range

20 year–35 year

Sex eligibility

Female

Study type

Observational

Primary location

Peking University People's Hospital

Beijing, Beijing Municipality, 100032, China

Location contact

Lei Gao, MD

CONTACT

[email protected]

17669675336

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age 20-35 years old
  • Singleton, cephalic position, full-term primipara;
  • Cephalopelvic disproportion;
  • Expected fetal weight< 4000g;
  • Intended vaginal delivery in our hospital;
  • Voluntary participation of study subjects.

Exclusion criteria

  • Pelvic floor organ prolapse beyond the hymen limbus;
  • Combined with uncontrolled medical diseases and asthma, allergic rhinitis and constipation before pregnancy;
  • Presence of contraindications to vaginal delivery

Treatment and study plan

Lithotomy position

Behavioral

Participants in the lithotomy decubitus position group were in the lithotomy position at the second stage of labor of delivery.

Lateral Position

Behavioral

Participants in the lateral position group were in the lateral position at the second stage of labor of delivery.

Upright Position

Behavioral

Participants in the upright position group were in the upright position at the second stage of labor of delivery.

Primary outcomes

  1. Stress urinary incontence (SUI) occurrence at 6 weeks postpartum

    Time frame: at 6 (±1) weeks postpartum

Study contacts

Contact information is provided by the study sponsor or research team.

Lei Gao, MD

CONTACT

[email protected]

+8617669675336

Sponsors and collaborators

Lead sponsor

Peking University People's Hospital

Other

Registry information

Important dates

Study start
2025
Primary completion
2027
Study completion
2027
First posted
Jul 23, 2025
Registry last updated
Nov 25, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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