How to determine pelvic floor muscle fatigue and what are the symptoms?

There is a pelvic bone in the skeleton. A pair of pelvic bones can form the pelvic cavity. The angle and size of the pelvic cavity of men and women are different. Women's pelvic cavity is usually larger than men's, and it is easier for them to give birth to babies. There are many muscles surrounding the pelvis, and the pelvic floor muscle is one of them. If the muscles are damaged, they are prone to fatigue or relaxation. So what will happen if the pelvic floor muscle is fatigued? What symptoms will appear and how should we treat it?

Before conducting systematic pelvic floor rehabilitation treatment, experts will first conduct a pelvic floor function assessment on the patient to develop a personalized treatment plan.

The measurement assessment is a procedure to measure pelvic floor muscle strength, muscle fiber fatigue, dynamic pressure, contraction speed, relaxation speed, static pressure, reflex pressure, and mean pressure. Among them, the five items of type I and II muscle fiber strength, type I and II muscle fiber fatigue and dynamic pressure are called the five major routines. Normal values ​​of the five major routine examinations: vaginal dynamic pressure (greater than 100cmH20), pelvic floor type I muscle fiber strength (grade 5), pelvic floor type II muscle fiber strength (grade 5), pelvic floor type I muscle fiber fatigue (0%), pelvic floor type II muscle fiber fatigue (0%).

In the assessment of pelvic floor muscle strength, if it is greater than or equal to 5S, the class I muscle fiber strength is level 5, the strength lasting 0S is level 0, the strength lasting 1S is level 1, the strength lasting 2S is level 2, the strength lasting 3S is level 3, and the strength lasting 4S is level 4. Muscle strength below level 4 is abnormal, and may lead to pelvic floor dysfunction diseases such as stress urinary incontinence, pelvic organ prolapse, and sexual dysfunction; the lower the muscle strength, the longer the treatment course.

Changes in muscle fiber fatigue occur earlier than decreases in muscle strength. When the predisposing factors persist, the first thing that occurs is abnormal fatigue of the type II muscle fibers in the pelvic floor muscles, which indicates the beginning of pelvic floor dysfunction, and the clinical manifestations are vaginal relaxation and sexual dysfunction. Then there is abnormal fatigue of type I muscle fibers of the pelvic floor muscles, and clinical manifestations include vaginal relaxation, increased sexual dysfunction, bulging of the anterior and posterior vaginal walls, mild uterine prolapse, urinary incontinence when negative pressure suddenly increases, etc.

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