Does Pilates Help Postpartum Recovery and Diastasis Recti? What the Research Says
Abdominal separation, a weakened pelvic floor and deep fatigue are near-universal after birth. Here is what peer-reviewed research actually shows about exercise-based recovery, including where the evidence is strong and where it is still thin.
9 studies and guidelines reviewed · Each one linked to its primary source · Last reviewed 1 October 2026
Research supports structured postpartum exercise: pelvic floor training reliably reduces incontinence, and Pilates-style core programmes are safe and improve strength, fatigue and sleep. Evidence that any exercise closes diastasis recti is mixed, so the realistic goal is function, not gap size.
Several controlled trials support the effect, but sample sizes are modest or results vary between studies.
The strongest evidence is for pelvic floor muscle training, which high-quality Cochrane reviews show prevents and treats postnatal incontinence. Two small randomised trials show home Pilates reduces postpartum fatigue and improves sleep, and trials of graded abdominal training show it builds strength without widening the abdominal gap. The main caveat is diastasis recti itself: one RCT of deep core training narrowed the gap, but a larger, better-designed trial found no change in prevalence, so no exercise programme can honestly promise to close a separation.
Key findings from the research
- Diastasis recti is the norm, not the exception: 100% of first-time mothers met the diagnostic threshold at 35 weeks of pregnancy, falling to 39% by six months postpartum (Mota 2015, prospective cohort).
- In a 300-woman cohort, 60% had diastasis at six weeks postpartum and 33% still had it at 12 months, yet women with and without a gap reported the same amount of lumbopelvic pain (Sperstad 2016, prospective cohort).
- Antenatal exercise reduced the presence of diastasis recti by 35%, but the underlying trials were rated poor quality, so exercise "may or may not" help prevent or reduce it (Benjamin 2014, systematic review).
- A 16-week supervised postpartum programme of pelvic floor and abdominal strengthening did not reduce diastasis prevalence at 6 or 12 months compared with no exercise (Gluppe 2018, RCT).
- A 12-week home programme of head lifts and curl-ups increased abdominal muscle thickness and strength without widening the inter-recti distance (Gluppe 2023, RCT).
- Adding deep core stability exercises to standard abdominal work three times a week for eight weeks produced a statistically significant reduction in inter-recti separation and better physical function scores (Thabet & Alshehri 2019, RCT).
- Eight weeks of home Pilates, five times a week from 72 hours after birth, significantly lowered every dimension of postpartum fatigue and improved global sleep quality (Ashrafinia 2015 and 2014, RCTs).
The studies, one by one
Listed with design, year and a link to the original so you can check every claim. Findings are reported as the authors reported them.
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Prevalence and risk factors of diastasis recti abdominis from late pregnancy to 6 months postpartum, and relationship with lumbo-pelvic pain
Finding: Using a threshold of 1.6 cm at 2 cm below the umbilicus, 100% of women had diastasis recti at gestational week 35. Prevalence fell to 52.4% at 4–6 weeks postpartum and 39% at six months, showing substantial natural recovery in the first half-year.
Why it matters here: A gap in the early months is expected; programmes should set function-based goals rather than treating any separation as abnormal.
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Diastasis recti abdominis during pregnancy and 12 months after childbirth: prevalence, risk factors and report of lumbopelvic pain
Finding: Diastasis (two or more fingerbreadths) was present in 33.1% at gestational week 21, 60.0% at six weeks, 45.4% at six months and 32.6% at 12 months postpartum. Women with and without diastasis reported no difference in lumbopelvic pain at 12 months.
Why it matters here: Back or pelvic pain after birth should not automatically be blamed on the abdominal gap; the whole trunk and pelvis need assessing.
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Effects of exercise on diastasis of the rectus abdominis muscle in the antenatal and postnatal periods: a systematic review
Finding: Exercise during pregnancy reduced the presence of diastasis by 35% (relative risk 0.65), and exercise in either period may reduce gap width. However, the included studies were of poor quality, and the authors concluded that non-specific exercise "may or may not" help prevent or reduce diastasis.
Why it matters here: Any claim that a specific exercise sequence "heals" diastasis goes beyond what this review can support.
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Effect of a postpartum training program on the prevalence of diastasis recti abdominis in postpartum primiparous women: a randomized controlled trial
Finding: A 16-week programme from six weeks postpartum (weekly supervised pelvic floor and abdominal class plus daily home pelvic floor training) did not reduce diastasis prevalence versus no intervention: 55.2% vs 54.5% at six weeks, 43.7% vs 44.3% at six months, and 41.4% vs 39.8% at 12 months.
Why it matters here: This is the largest trial on the question and it is negative; honest programmes should say so and focus on strength, continence and function.
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Curl-up exercises improve abdominal muscle strength without worsening inter-recti distance in women with diastasis recti abdominis postpartum: a randomised controlled trial
Finding: Twelve weeks of home head lifts, curl-ups and twisted curl-ups five days a week neither improved nor worsened the inter-recti distance (1 mm difference at rest). The programme did increase rectus abdominis thickness (0.7 mm) and abdominal strength (9 Nm) compared with control.
Why it matters here: Traditional advice to avoid all curl-ups after birth is not supported; graded abdominal loading appears safe for the gap and builds strength.
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Efficacy of deep core stability exercise program in postpartum women with diastasis recti abdominis: a randomised controlled trial
Finding: Women who added a deep core stability programme (three sessions a week for eight weeks) to traditional abdominal exercises showed a statistically significant reduction in inter-recti separation measured by calipers, and a significant improvement in the Physical Functioning Scale, compared with traditional exercise alone.
Why it matters here: Deep core work of the type used in clinical Pilates can improve separation and function, though this was a small single-centre trial.
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Pelvic floor muscle training for preventing and treating urinary and faecal incontinence in antenatal and postnatal women
Finding: In continent pregnant women, pelvic floor muscle training reduced the risk of urinary incontinence in late pregnancy by 62% (moderate certainty) and in the mid-postnatal period by 29% (high certainty). For women who already had incontinence, the evidence that antenatal training helps was unclear.
Why it matters here: Pelvic floor training belongs in every postpartum programme, ideally started during pregnancy rather than after symptoms appear.
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Physical Activity and Exercise During Pregnancy and the Postpartum Period: ACOG Committee Opinion, Number 804
Finding: Physical activity in uncomplicated pregnancy and the postpartum period is safe and desirable. Exercise is associated with shorter postpartum recovery time and may help prevent postpartum depressive disorders; women who were active before pregnancy can continue those activities after birth.
Why it matters here: The default medical position is to return to graded exercise after birth, not to rest indefinitely.
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Effect of Pilates exercises on postpartum maternal fatigue
Finding: Women who did 30-minute home Pilates sessions five times a week for eight weeks, starting 72 hours after delivery, scored significantly lower than controls on every subscale of the Multidimensional Fatigue Inventory (general, physical, mental fatigue, reduced activity and reduced motivation; all p<0.001). A companion trial by the same group (2014, Journal of Bodywork and Movement Therapies) found significant improvements in global sleep quality, sleep latency and daytime dysfunction.
Why it matters here: These are the most direct Pilates-specific postpartum trials, and their outcomes are energy and sleep rather than the abdominal gap.
How Pilates is thought to help postpartum recovery & diastasis recti
Pregnancy stretches the linea alba, the connective tissue between the two halves of the rectus abdominis, and lengthens the abdominal wall. Much of that separation narrows on its own over the first six months. What exercise can influence is the tension and thickness of the muscles that pull on the linea alba, which is why trials that measured strength saw gains even when gap width barely moved.
Pelvic floor muscle training works by restoring strength and timing to the muscles that support the bladder, bowel and uterus. The Cochrane evidence is clearest here: regular, correctly performed contractions reduce leaking in late pregnancy and after birth. Pilates-style breathing and pelvic floor cues make this training part of every movement rather than a separate drill.
Fatigue and poor sleep are among the heaviest burdens of the postpartum period. Gentle, regular whole-body movement appears to improve both, plausibly through effects on circulation, mood and sleep regulation, and the Pilates trials that measured these outcomes started as early as three days after an uncomplicated birth.
What the evidence does not tell us
- The two Pilates-specific postpartum RCTs come from a single Iranian research group and measured fatigue and sleep, not diastasis recti, pelvic floor strength or pain.
- Trials of exercise for diastasis recti are small and contradictory: a 40-woman trial found reduced separation, while a 175-woman trial found no change in prevalence. Measurement methods (fingers, calipers, ultrasound) also differ between studies.
- Most cohorts and trials enrolled first-time mothers after uncomplicated births; women after caesarean section, multiple pregnancies or with pelvic organ prolapse are under-represented.
- Long-term follow-up beyond 12 months is rare, so it is unknown whether early exercise changes outcomes years later.
- Home-programme trials rely on self-reported adherence, which tends to be over-estimated.
Practical takeaways
- Start pelvic floor training early, ideally in pregnancy, and keep it going after birth; this has the highest-quality evidence of anything on this page.
- Expect a gap. Around half of women have measurable diastasis at six weeks and a third at a year; it is common and not by itself a cause of back pain.
- Judge progress by what you can do (lifting, carrying, standing tall, leaking less), not by the width of the gap.
- Graded abdominal work, including curl-ups once you are ready, builds strength without widening the separation in trials; it does not need to be avoided forever.
- Gentle daily Pilates from the first weeks after an uncomplicated birth is associated with less fatigue and better sleep.
- Get a six-week postnatal check first, and seek a pelvic health physiotherapist if you have pain, heaviness, bulging or leaking that does not settle.
Programmes built on this evidence
Each protocol below applies the principles above as a structured, progressive 8-week plan, with the exercises the trials actually used.
Frequently asked questions
- Does Pilates help diastasis recti?
- Partly. Pilates-style deep core training improved separation and function in one small trial, but the largest randomised trial of postpartum core and pelvic floor exercise found no change in how many women still had a gap at 12 months. What the research does show consistently is that graded abdominal work builds strength and thickness without making the gap worse. Think of Pilates as a way to restore a functional core, not a guaranteed way to close the separation.
- How soon after giving birth can I start Pilates?
- The Pilates trials that measured fatigue and sleep started 72 hours after an uncomplicated vaginal birth with gentle 30-minute home sessions. ACOG guidance supports resuming physical activity as soon as it is medically safe. Most clinicians still recommend waiting for your six-week postnatal check before progressing to anything more demanding, and longer after a caesarean section or complicated delivery. Breathing, pelvic floor contractions and gentle mobility are a sensible starting point.
- How often should I do postpartum Pilates?
- The trials with positive results used short, frequent sessions: 30 minutes five days a week for fatigue and sleep, and curl-up programmes five days a week for abdominal strength. Deep core stability trials used three sessions a week for eight weeks. Pelvic floor training works best done daily. A practical pattern is a short daily session that includes pelvic floor work, with two or three slightly longer core sessions each week.
- Are curl-ups and crunches bad for diastasis recti?
- The evidence no longer supports a blanket ban. A 2023 randomised trial in women six to twelve months postpartum found that twelve weeks of head lifts and curl-ups did not widen the inter-recti distance and did increase muscle thickness and strength. That said, the women were already several months past birth. Build up gradually, stop if you see doming or feel pelvic pressure, and get individual advice if you have symptoms.
- Will pelvic floor exercises stop me leaking after birth?
- For many women, yes. The 2020 Cochrane review of over 10,000 women found that pelvic floor muscle training started in pregnancy cut the risk of urinary incontinence by 62% in late pregnancy and 29% in the months after birth, with high-certainty evidence for the postnatal figure. For women who already leak, the evidence is less clear, so persistent symptoms deserve assessment by a pelvic health physiotherapist rather than exercise alone.
- Mat or reformer Pilates for postpartum recovery?
- Every postpartum trial on this page used mat or home-based exercise; none used a reformer. Mat work is what the evidence supports, it is free to do at home while a baby naps, and it is easier to keep the loads low and progressive. A reformer can be a good option later once the pelvic floor and deep core are working well, but it is not necessary for recovery.
Citing this summary
You are welcome to quote or link to this page with attribution. Please also cite the primary studies listed above.
Pilates Protocols, "Does Pilates Help Postpartum Recovery and Diastasis Recti? What the Research Says", https://pilatesprotocols.com/evidence/pilates-for-postpartum-recovery/ (reviewed 1 October 2026)Note. This page summarises published research for general information and is not medical advice. This page summarises published research for general information and is not medical advice. Postpartum recovery varies widely. Get clearance from your midwife, obstetrician or GP before starting exercise after birth, and see a pelvic health physiotherapist for pain, heaviness, bulging or leaking that does not improve. Pilates Protocols programmes are educational products, not a substitute for individual clinical care.