Research & Evidence
The Research Behind Pelvic Floor Physical Therapy
Clear evidence. Honest limitations. Practical takeaways.
Pelvic floor symptoms are common, and many can improve with the right treatment. But we don’t expect you to simply take our word for it. This page breaks down what research tells us about pelvic floor physical therapy — including where the evidence is stronger, where it’s still developing, and what we don’t know yet.
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A single positive study doesn't make a treatment “proven.” We look at study design, sample size, comparison groups, consistency across studies, who was actually studied, how long people were followed, risk of bias, and the overall certainty of the evidence.
We want you to know what research supports, what it suggests, and what we still don't know.
Jump to what matters to you
How to read the labels
Simple labels, honest nuance
These are orientation, not grades. Wherever possible we rate a specific claim rather than a whole category.
Multiple higher-quality studies give us greater confidence in the finding.
Stronger Evidence
Research generally supports the claim, but meaningful limitations or unanswered questions remain.
Supportive evidence
Early findings are encouraging, but more or better-quality research is needed.
Promising / developing evidence
One more distinction we keep straight: a study showing that two muscle groups co-activate tells us something about physiology. It does not automatically prove that a treatment improves symptoms. We keep mechanism separate from clinical effect.
Bladder Health
Leaking, urgency, frequency, and bladder control
Leaking is common. That doesn't mean you have to live with it. Research strongly supports pelvic floor muscle training as a conservative treatment for urinary incontinence. Pelvic floor rehabilitation is not simply about doing more Kegels — treatment may address strength, endurance, coordination, relaxation, breathing, movement, or pressure management depending on the person.
What this could mean for you
If you leak when you cough, sneeze, laugh, exercise, or lift — or frequently feel an urgent need to find a bathroom — your pelvic floor may be part of the picture. Pelvic floor PT can help assess what may be contributing to your symptoms.
Stronger Evidence
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Pelvic floor muscle training for female urinary incontinence is one of the better-researched areas of pelvic health rehabilitation. Systematic reviews and randomized trials support PFMT for improving urinary incontinence outcomes. However, the best exercise dose, exact program, and delivery method are not equally well established.
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Studies vary in exercise type, dosage, supervision, participant characteristics, outcome measures, and follow-up. Some comparisons rely on small studies, and long-term evidence is more limited. This supports confidence in the overall intervention without implying that one exact protocol is best for everyone.
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Pelvic floor muscle training versus no treatment, or inactive control treatments, for urinary incontinence in women
Dumoulin, Cacciari & Hay-Smith - 2018
Cochrane Database of Systematic Reviews
Systematic Review
Adult Conservative Management (ICI Committee Report)
Dumoulin et al. - 2017
International Consultation on Incontinence
Consensus Review
Want to read the full study? Copy the article title and paste it into Google, Google Scholar, or PubMed.
Bottom line: Conservative pelvic floor training is a well-supported first step for urinary leakage - before considering surgery.
Bowel Health
Constipation, straining, incomplete emptying, and bowel control
Bowel symptoms are rarely just about fiber and water. The muscles of the pelvic floor have to relax and coordinate for a bowel movement to happen easily. When that coordination is off, straining and incomplete emptying often follow. Pelvic floor PT may include biofeedback, toileting mechanics, breathing, manual therapy, and habit retraining.
What this could mean for you
If you strain, feel like you never fully empty, or have pain with bowel movements, it may be worth assessing how your pelvic floor is coordinating — not just what you're eating.
Supportive evidence
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Biofeedback-assisted coordination training for dyssynergic defecation is supported by randomized trials and is recommended in several gastroenterology guidelines, generally outperforming laxatives alone for this specific subgroup.
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Protocols, biofeedback equipment, and diagnostic criteria vary widely between studies. Sample sizes are often modest, blinding is difficult, and long-term follow-up is limited. Evidence for fecal incontinence is more mixed than for dyssynergia.
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Randomized controlled trial of biofeedback for dyssynergic defecation
Rao et al. — 2007
Clinical Gastroenterology and Hepatology
Randomized Controlled Trial
Biofeedback for fecal incontinence and constipation in adults
Norton & Cody — 2012
Cochrane Database of Systematic Reviews
Systematic Review
Want to read the full study? Copy the article title and paste it into Google, Google Scholar, or PubMed.
Bottom Line: For difficulty emptying, coordination retraining often addresses the cause that fiber alone can't.
Pregnancy & Birth
Pelvic girdle pain, prevention of leaking, and birth preparation
Discomfort in pregnancy is common, but it isn't something you simply have to endure. Research supports exercise and pelvic floor training during pregnancy for reducing low back and pelvic girdle pain and for lowering the likelihood of urinary incontinence in late pregnancy and after birth.
What this could mean for you
If you're pregnant and dealing with pelvic or back pain, leaking, or heaviness — or you'd like to prepare your body for birth — supervised pelvic floor and movement work during pregnancy may help.
Supportive evidence
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Programs differ substantially in supervision, intensity, and start point. Many trials cannot blind participants, and self-reported outcomes are common. Effects on birth outcomes themselves are less certain than effects on continence.
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Studies vary in exercise type, dosage, supervision, participant characteristics, outcome measures, and follow-up. Some comparisons rely on small studies, and long-term evidence is more limited. This supports confidence in the overall intervention without implying that one exact protocol is best for everyone.
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Pelvic floor muscle training for preventing and treating urinary and faecal incontinence in antenatal and postnatal women
Woodley et al. - 2020
Cochrane Database of Systematic Reviews
Systematic Review
Interventions for preventing and treating pelvic and back pain in pregnancy
Liddle & Pennick - 2015
Cochrane Database of Systematic Reviews
Systematic Review
Want to read the full study? Copy the article title and paste it into Google, Google Scholar, or PubMed.
Bottom line: Training during pregnancy is one of the better-supported ways to reduce leaking later on.
Postpartum Recovery
Leaking, heaviness, scar recovery, abdominal separation, and return to exercise
Postpartum recovery deserves more than a six-week clearance. Research supports pelvic floor muscle training for postpartum urinary incontinence and prolapse symptoms, and clinical practice increasingly supports progressive loading to return to running, lifting, and sport.
What this could mean for you
If you're leaking, feeling heaviness or pressure, dealing with scar sensitivity, or unsure how to safely return to exercise, an individualized assessment can map out a progression rather than a guess.
Supportive evidence
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Postpartum PFMT improves urinary incontinence outcomes and prolapse symptoms in multiple trials and reviews. Return-to-running guidance is largely consensus- and expert-informed rather than trial-proven.
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Postpartum populations are heterogeneous — delivery type, injury, parity, and timing all vary. Diastasis recti research in particular is limited by small samples, inconsistent measurement, and short follow-up.
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Pelvic floor muscle training for prevention and treatment of postnatal incontinence
Woodley et al. - 2020
Cochrane Database of Systematic Reviews
Systematic Review
Returning to running postnatal - guidelines for medical, health and fitness professionals
Goom, Donnelly & Brockwell - 2019
Clinical Guidance Document
Expert Consensus
Want to read the full study? Copy the article title and paste it into Google, Google Scholar, or PubMed.
Bottom Line: Symptoms after birth are common - but common is not the same as something you have to keep.
Men’s Health
Post-prostatectomy continence, CP/CPPS, and urinary symptoms in men
Men have pelvic floor muscles, and those muscles respond to training and to down-training. Research supports pelvic floor muscle training around prostate surgery for continence recovery, and supports multimodal physical therapy - including manual therapy and relaxation-focused work - for chronic pelvic pain syndrome.
What this could mean for you
If you're preparing for or recovering from prostate surgery, or living with persistent pelvic pain or urinary symptoms, pelvic floor PT may be a useful part of your care alongside your physician.
Supportive evidence
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Evidence supports faster return of continence after radical prostatectomy with supervised pelvic floor training, though findings on long-term continence rates are mixed. For CP/CPPS, myofascial physical therapy has shown benefit in randomized work, but trials are relatively few.
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Trials differ in when training starts, how it's supervised, and how continence is measured. Several CP/CPPS studies are small, single-center, and difficult to blind. Erectile function outcomes are studied less than continence outcomes.
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Conservative management for postprostatectomy urinary incontinence
Anderson et al. - 2015
Cochrane Database of Systematic ReviewsSystematic Review
Randomized multicenter feasibility trial of myofascial physical therapy for urologic chronic pelvic pain syndromes
FitzGerald et al. - 2013The Journal of Urology
Randomized Controlled Trial
Want to read the full study? Copy the article title and paste it into Google, Google Scholar, or PubMed.
Bottom line: Pelvic PT for men complements urologic care — it doesn't replace it.
Pelvic Pain
Painful sex, vaginismus, endometriosis-related pain, and persistent pelvic pain
Persistent pelvic pain is rarely caused by one thing. Research supports multimodal care — manual therapy, graded movement, down-training of overactive muscles, and pain science education — often alongside medical and behavioral health care.
What this could mean for you
If sex, sitting, tampons, or exams are painful, or pain has persisted despite treatment, pelvic floor PT can assess muscle tension, nerve sensitivity, movement, and nervous system contributions.
Promising / developing evidence
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Multimodal pelvic floor physical therapy shows encouraging results for provoked vestibulodynia, vaginismus, and endometriosis-associated pain. The literature is growing but includes fewer large, high-quality randomized trials than the incontinence literature.
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Pain conditions are heterogeneous and treatment protocols differ significantly. Many studies are small, use varied outcome measures, and lack long-term follow-up or robust control groups. Placebo and expectation effects are hard to isolate in hands-on care.
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Physical therapy for chronic pelvic pain: a systematic review
Berghmans - 2018
International Urogynecology Journal
Systematic Review
Multimodal physical therapy for provoked vestibulodynia
Morin et al. - 2021
American Journal of Obstetrics & Gynecology
Randomized Controlled Trial
Want to read the full study? Copy the article title and paste it into Google, Google Scholar, or PubMed.
Bottom Line: The evidence here is developing — but pain that hasn't been explained is still worth assessing.
Other Pelvic Health
Prolapse, surgical recovery, and pelvic health across the lifespan
Pelvic organ prolapse symptoms often improve with pelvic floor muscle training, and conservative care is commonly recommended before or alongside surgical options. Pre- and post-surgical rehabilitation is used to support recovery after gynecologic, abdominal, and pelvic procedures.
What this could mean for you
If you feel heaviness, bulging, or pressure, or you're preparing for or recovering from pelvic surgery, conservative pelvic floor care may reduce symptoms and support your recovery.
Supportive evidence
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Trials support PFMT for reducing prolapse symptoms and severity, particularly for mild to moderate prolapse. Evidence is weaker for anatomical change than for symptom improvement, and for advanced prolapse.
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Symptom improvement does not always correspond with measurable anatomical change. Supervision levels and adherence vary. Long-term data and evidence for severe prolapse are more limited.
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Pelvic floor muscle training for pelvic organ prolapse in women
Hagen & Stark - 2011
Cochrane Database of Systematic Reviews
Systematic Review
Individualised pelvic floor muscle training in women with pelvic organ prolapse (POPPY trial)
Hagen et al. - 2014
The Lancet
Randomized Controlled Trial
Want to read the full study? Copy the article title and paste it into Google, Google Scholar, or PubMed.
Bottom Line: Symptoms often improve with conservative care - it's a reasonable first stop before surgery.
Mechanism vs. outcome
Why we keep these two things separate
A study showing that two muscle groups co-activate, or that pelvic dimensions change with position, tells us something real about physiology or mechanics. It does not automatically prove that a specific treatment improves a person’s symptoms. When we describe evidence on this page, we try to be clear about which kind of finding we’re talking about.
Dr. Ciara’s training
Dr. Ciara has completed advanced professional training through the Herman & Wallace Pelvic Rehabilitation Institute and the American Physical Therapy Association, and is certified as a Pregnancy and Postpartum Corrective Exercise Specialist. She also serves as faculty within the Doctor of Physical Therapy program at Loma Linda University.
This page is reviewed periodically against updated systematic reviews, clinical guidelines, and new trials.
Research guides us.You guide your care.
Research helps us understand which treatments may be effective and why. But research is only one part of individualized healthcare. Your symptoms, medical history, movement, pelvic floor function, lifestyle, comfort, and goals all matter. At Artistry Pelvic Health, we use the best available research alongside clinical expertise and your individual needs.
The information provided on this page is for educational purposes and is not a substitute for individualized medical evaluation, diagnosis, or treatment. This page is reviewed and updated as the evidence base evolves.
Still have questions about the evidence?
Bring them to your discovery call — we're happy to talk through what research does and doesn't tell us about your situation.