Differences in Pelvic Floor Motion Level Among Chinese Women and Construction of an Assessment System

The purpose of this study is to integrate millimeter-wave radar technology to investigate the dynamic movement characteristics of the pelvic floor muscles in patients with different Body Mass Index (BMI) and stress urinary incontinence. Based on this, a large database of pelvic floor movement parameters for Chinese women will be constructed, and a multi-subgroup standard atlas of pelvic floor muscle movement will be established to promote the standardized application of this technology in obstetrics and gynecology clinical assessments. This study also aims to explore the clinical value of pelvic floor movement assessment within the pelvic floor evaluation system, providing directions and insights for establishing a systematic evaluation system and standardizing the diagnosis and treatment of pelvic floor disorders.

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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

18 year–60 year

Sex eligibility

Female

Study type

Observational

Primary location

Anhui Provincial Hospital, Hefei, Anhui, China

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

Female, aged between 18 and 60 years old
Signed the informed consent form
Healthy group demonstrated no pelvic floor dysfunction
SUI group had stress urinary incontinence symptom

Exclusion criteria

Participants with cognitive behavioral disorders, mental illnesses, or those who are unable to cooperate
Participants who cannot demonstrate correct pelvic floor muscle contraction
Participants who were within 1 year postpartum
Participants who were post hysterectomy
Participants who had pain during internal exam or refused to have internal exam
SUI group who had pelvic organ prolapse symptoms or whose POP-Q lowest level reached or exceeded the hymenal ring
SUI group had urgency urinary incontinence symptoms
SUI group had chronic constipation symptoms

Treatment and study plan

Primary outcomes

Pelvic floor movement level assessment

Time frame: 2 minutes

The outcome measure is the pelvic floor movement level assessed on the magnetic stimulator. The patient is asked to perform pelvic floor muscle contraction and relaxation according to voice prompts, and the assessment data is recorded. The outcome includes maximum/mean values, rise time, and recovery time. The reference maximum or mean value is ≥2.0 and ≥1.5 millimeters. The reference rise and recovery time is <0.5 second and <0.7 second.

Study contacts

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

Juan Chen, Doctor

CONTACT

[email protected]

+86-13521354364

Tangdi Lin, Doctor

CONTACT

[email protected]

+86-13547909619

Sponsors and collaborators

Lead sponsor

Peking Union Medical College Hospital

Other

Registry information

Official study title

Differences in Pelvic Floor Movement Levels Based on Population Characteristics and the Construction of an Assessment System

Important dates

Study start: 2026
Primary completion: 2026
Study completion: 2027
First posted: May 27, 2026
Registry last updated: May 27, 2026

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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