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

Primary outcomes

• Pelvic floor movement level assessment [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.

Sex: Female, ages: 18 Years to 60 Years, accepts healthy volunteers

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

• Lan Zhu, Doctor, Principal investigator, Peking Union Medical College Hospital