Running After Birth: What Pelvic Health Physiotherapists Actually Say

Search for “when can I run after giving birth” and the internet splits into two camps: forum posts from mothers who ran at four weeks and were fine, and warnings that sound like they were written to cover someone. Neither is much use when you are standing at the door in trainers. So this article does something different. It sets out what the physiotherapists who specialise in this have actually put in writing, quotes them where it matters, and links every source so you can read the original rather than trust a summary.

Two documents carry most of the weight. The first is a 2019 guideline, Returning to Running Postnatal, written by three UK physiotherapists: Tom Goom, a clinical lead specialising in running injury; Gráinne Donnelly, an advanced pelvic health physiotherapist and now editor-in-chief of the Journal of Pelvic, Obstetric and Gynaecological Physiotherapy; and Emma Brockwell, a women’s health physiotherapist who specialises in postnatal rehabilitation. The second is a pair of 2024 consensus statements in the British Journal of Sports Medicine, where 118 clinicians and exercise professionals from several countries were surveyed until they agreed.

The six-week check is not a running clearance

The most-cited line in the 2019 guideline is its second evidence-based recommendation, and it is worth quoting in full:

The reasoning is not that six weeks is a magic number that was set too low. It is that the six-week check was never designed to answer this question. The authors note that GP postnatal checks “are not always standard practice across the UK” and that GPs “are not provided with adequate training in this area,” so where a check happens it “may simply involve subjective evaluation and advice.” A conversation about how you feel is not an assessment of whether your pelvic floor can absorb the load of running.

The NHS, for its part, is careful in how it words the six-week milestone. Its advice for a straightforward birth is that “you can start gentle exercise as soon as you feel up to it,” listing walking, gentle stretches and pelvic floor exercises. For anything harder it says: “It’s usually a good idea to get advice at your 6-week postnatal check before you start any high-impact exercise, such as aerobics or running.” That is advice to seek advice, not a date on which running becomes fine.

The American College of Obstetricians and Gynecologists takes the same shape in its Committee Opinion 804. Its position is that exercise “is an essential element of a healthy lifestyle” and that women who were active before pregnancy “can continue these activities during pregnancy and the postpartum period.” The body of the opinion frames the return as gradual and dependent on how you gave birth and whether there were complications, and it recommends pelvic floor physical therapy where symptoms exist. Nothing in it names a week at which running is cleared.

Why running is different from walking

The guideline describes running plainly as “a high impact sport placing a lot of demand on the body,” and its foreword names the conditions that are “prevalent amongst postnatal runners”: musculoskeletal pain, urinary incontinence, abdominal separation and pelvic organ prolapse. It calls these “common but not normal,” a phrase that has since become the standard way pelvic health clinicians talk about leaking on a run.

Caitlin Collenette, a physiotherapist at Inner Strength Bayside in Australia, puts the practical version this way: “Low-intensity exercise and strengthening should be undertaken generally for at least 12 weeks postnatal before progressing to higher-intensity exercise such as running.” She cites the finding that high-impact exercise “has been found to carry a 4.59-fold increased risk of pelvic floor dysfunction,” and advises seeking guidance for “pain, heaviness, dragging, or incontinence.”

The 2024 consensus adds the time dimension that the 2019 document could only hint at. Its authors report that professionals agreed “following a minimum 3-week period of rest and recovery, an individualised timeline and gradual return to running progression can be considered,” and that “screening for medical and psychological concerns, current physical capacity, and prior training history is recommended prior to a return to running.” Read the two documents together and the picture is consistent: rest first, then rebuild for weeks, then test, then run.

After a caesarean

A caesarean is listed in the 2019 guideline’s table of risk factors for problems on returning to running, alongside being less than three months postnatal, breastfeeding, pre-existing pelvic floor or hypermobility conditions, and low energy availability. The reason is tissue healing, and the guideline is specific: it cites ultrasound work showing the uterine scar is still thickened at six weeks, and research that the abdominal fascia “has only regained 51%-59% of its original tensile strength by 6-weeks post caesarean section and 73%-93% of its original tensile strength at 6-7 months postnatal.”

The NHS says the same thing in fewer words: after a caesarean or a complicated birth, “your recovery time will be longer. Talk to your midwife, health visitor or GP before starting anything strenuous.” In practice, physiotherapists treat the three-month mark as the earliest sensible date after a caesarean rather than the typical one, and they want scar mobility and abdominal load transfer checked before impact.

The tests physiotherapists use before your first run

This is the part most articles leave out, and it is the most useful. The 2019 guideline publishes the screen it expects a woman to pass before running. In its words, “the postnatal mother needs to achieve the following without pain, heaviness, dragging or incontinence”:

• Walking 30 minutes
• Single leg balance 10 seconds
• Single leg squat 10 repetitions each side
• Jog on the spot 1 minute
• Forward bounds 10 repetitions
• Hop in place 10 repetitions each leg
• Single leg ‘running man’ (opposite arm and hip flexion and extension, bent knee) 10 repetitions each side

Alongside that, the guideline sets a baseline for pelvic floor endurance that a specialist physiotherapist can assess directly: 10 fast contractions, 8 to 12 repetitions of a 6 to 8 second maximal contraction, and a 60-second hold at 30 to 50 percent effort. It also asks for strength in the calves, quads, hamstrings, glutes and abdominals, because running is a series of single-leg landings and the pelvic floor does not absorb them alone.

The authors are candid about the evidence behind these tests. Their third recommendation states that the screen “is based on expert clinical consensus drawing from the best available evidence” and that “no studies specific to the postnatal population have been carried out to evaluate readiness to return to exercise.” That honesty is a reason to trust the document, not a reason to skip the tests: they are the best-informed screen anyone has published.

Abdominal separation is not automatically a stop sign

Diastasis recti worries a lot of would-be runners, and the guideline is more reassuring than most online advice. It says a mother “can return to running with a diastasis if it is functional, i.e. abdominal muscle separation is present but the mother has strategies to control IAP and transfer load across the abdominal wall.” What it wants ruled out is failed load transfer: doming or sinking at the midline, a sideways shift of the trunk, or marked rib flare under load. Those are things a physiotherapist looks for, and the gap measurement on its own is not the deciding factor.

The things nobody screens for, and the guideline does

Several pages of the 2019 document are given to factors that have nothing to do with the pelvic floor and everything to do with whether a run goes well. Sleep is the clearest: the authors note that sleep deprivation in athletes is associated with increased injury risk, that sleep loss is thought to impair muscle strength, and that the research target of seven to nine hours “can be timed to coincide with the infant’s sleep schedule” through daytime naps. They are not pretending a new mother will get nine hours. They are saying that a badly slept week is a week to run less.

Breastfeeding is listed as a risk factor because the hormonal environment that may affect joint laxity persists, in the guideline’s words, “up to 3 months following weaning.” Relative energy deficiency, the state of expending more than you replace, gets its own section because postnatal women with it are at higher risk of stress fractures and pelvic floor dysfunction. And the guideline explicitly raises psychological status, naming the risk that running becomes a coping strategy pushed to an intensity or duration the body is not ready for. The 2024 programme consensus says the same in one line: training “should be modified based on musculoskeletal or pelvic symptoms, sleep, mental health, lactation or energy availability concerns.”

What the first runs should look like

Once a woman is three months or more postnatal and has passed the tests, the guideline says it is “appropriate to jointly plan a programme that will allow a graded return to running.” Its advice on the shape of that programme is concrete:

• “It is sensible to start small, often with around 1 to 2 minutes of running at an easy pace.”
• Build volume (time or distance) before intensity.
• Increase total weekly running by no more than around 10 percent, while recognising that at very low volumes “a 10% increase may be prohibitively slow”; going from one minute to two is a 100 percent relative increase but only one extra minute.
• Walk breaks “can be helpful to reduce fatigue initially and can be gradually reduced and removed.” The guideline points to the NHS Couch to 5K structure, which starts with a brisk five-minute walk then alternates one minute of running with 90 seconds of walking for 20 minutes.
• If risk factors are present, start lower and progress more slowly; the guideline cites research finding lower injury risk starting at three kilometres a week rather than six.

The 2024 consensus reached agreement on the same architecture, describing the recommended programme as “a period of relative rest, gradual increases in duration and intensity, starting with a walk-run protocol and incorporating strength training.” Strength work is not a warm-up for running here. It is part of the programme throughout.

One more practical note from the guideline for anyone planning to run with a pram: manufacturers advise against buggy running until the baby is six to nine months old, to protect the neck and spine, and the guideline suggests starting slowly with a two-handed technique when you do.

The symptoms that mean stop, and the ones that do not

The guideline asks clinicians to have “a realistic discussion on what is acceptable and should be expected” before a woman starts, and then draws the line clearly. “Heaviness, dragging, incontinence or moderate to severe pain may suggest excessive training distance or intensity.” Any of those is a signal to reduce, modify or stop, and to get assessed rather than to push through. Mild muscular soreness that settles quickly after a run is treated differently, as a normal part of building load. Knowing which category a sensation falls into is most of what makes an early return to running safe.

Where the experts still disagree, honestly

It would be misleading to present this as settled. The 2019 authors describe their own document as “based on the best available evidence alongside experienced clinical opinion” and say it “does not provide a prescriptive approach.” The 2024 consensus authors close by saying that “future research is needed to strengthen and validate specific recommendations.” Both groups also name the same barrier: cost of, and access to, a physiotherapist who does this work. If you cannot see one, the published tests above are the closest thing to a self-screen that exists, and the three-month floor is the one number every source agrees on.

What this means for the weeks before the first run

If running is not advisable before three months, the question for most of the fourth trimester is not when to run but what to do instead so that the three-month test is passable. Every source here answers that the same way: walking early and often, pelvic floor work from the first days, and strength work that opens up as healing allows, later after a caesarean. That is exactly the sequence MatraBloom builds a session from, week by week and by birth type, so the weeks before running are not a gap to be filled with guesswork.

See the week-by-week movement plan, including where a caesarean changes it

Frequently asked questions

The weeks before the first run, sized to your recovery

MatraBloom builds the walking, pelvic floor and strength weeks that come before running from how many weeks it has been and how you gave birth, and its two-minute reset keeps the habit alive on the days there is nothing left.

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