REF-1397 · Christopher et al., 2024 · British Journal of Sports Medicine · Paper · PubMed

How soon after giving birth can I run again?

Experts agreed: not before 3 weeks, then on a personal timeline once screened (walk 30 min, jog on the spot, hop, without leaks or pain). No date fits everyone; opinion, not trials.

Main caveat: Expert opinion. Consensus measures agreement, not truth; no screen item or the 3-week floor was tested against outcomes, and the authors' literature review is…
limited evidenceMeasured on recreational to world-class athletes

Christopher and colleagues asked experienced clinicians and exercise professionals how they decide when a runner is ready to run again after childbirth.

Of 222 professionals who met the entry criteria (at least 5 years treating postpartum runners, or a caseload at least half postpartum runners), 118 completed Round I (open questions on definitions, key milestones, screening, timeline, support items, education and reasons to advise against running), 107 completed Round II and 95 Round III (Likert statements, with Round II results shown in Round III); consensus was set a priori at 75%.

The 12 authors then reviewed the literature narratively and voted their own recommendations, each passed 12/12.

Consensus: a runner is anyone who runs or self-identifies as one, at any time after childbirth; ten of eleven proposed milestones should be assessed before running (pelvic-floor strength, endurance and coordination, urinary and anal incontinence, prolapse symptoms, lumbopelvic and lower-limb strength, balance, gait), inter-recti distance being the one that failed (55.3% in Round III), and no cut-offs were named; a graded load-and-impact screen (walking 30 minutes, single-leg balance, squats, jogging on the spot, forward bounds, hopping, single-leg "running man", calf raises, single-leg bridge and sit-to-stand) should be completed without musculoskeletal or pelvic symptoms; sleep, pre-existing conditions, mental health, fatigue, energy availability, milk supply and hydration should be screened.

On timing the panel agreed unanimously that the timeline should be person specific, and by consensus that running should not start before 3 weeks after birth (85.5%), that a birth injury must be fully healed first (97.6%) and that a return before 12 weeks can be possible.

The authors recommend relative rest and recovery, then gradual cardiorespiratory and strength work before the first run, with prior training load considered; elite athletes and symptomatic runners should seek medical advice or a pelvic-health physiotherapist's evaluation.

Mild prolapse, urinary or anal-incontinence symptoms were agreed not to bar running; severe symptoms, lochia, birth complications, poor mental health and high REDs risk were agreed reasons to advise against it.

Our reading: this is the readiness half of the same Delphi whose plan-design half is REF-569; it replaces a calendar with a screen, and it does not support a fixed 12-week or 3-month rule — it names 3 weeks as a floor and an individual timeline after that.

Protocol

Design: three-round online Delphi (Qualtrics), each round open 3-4 weeks; Round I open-ended (5 questions on screening, 3 on return considerations, plus definitions of "postpartum" and "runner"), piloted on 11 retired or no-longer-practising practitioners; thematic coding by four authors; Rounds II-III Likert statements (strongly agree to strongly disagree), consensus = ≥75% agree or strongly agree. Ethics: Elon University IRB 22-112.
Who (respondents): 222 eligible professionals invited; n = 118 (Round I), 107 (Round II, response rate 90.6%), 95 (Round III, 80.5%). Mean experience with postpartum runners 8.9 years (text range 2-37; Table 1 range 1-30, see Limitations); seven professions (Round III: 80 physiotherapists, 6 personal trainers, 4 exercise physiologists, 3 physicians, 1 occupational therapist, 1 run coach), 12 countries on four continents; 97% women; mean age about 39.
Author recommendations: after the survey, the 12 authors (about 10 years' average experience with perinatal runners) searched the literature narratively (not limited to systematic reviews or RCTs; grey literature allowed), graded each topic on the Sackett scale, and voted their recommendations in three anonymous rounds.
Companion paper: "Expert opinion consensus on the rehabilitation program and running program design is presented in another publication" — Deering et al., cited as in review, which is REF-569. The participant counts are identical (118, 107, 95), so the two papers report one Delphi (our inference from the counts and the companion statement).
Funding and interests (accepted manuscript): "MD is the Christenson Professor in Active Healthy Living"; competing interests: "ISM is an Associate Editor of BJSM". No device maker, federation or data platform is named.

Key Results

TopicRound III agreement (consensus ≥75%)
Timeline should be person specificunanimous
Cannot start running before 3 weeks postpartum85.5%
Any birth injury completely healed before running97.6%
Returning to running before 12 weeks is possibleconsensus (percentage not given in the text)
"Postpartum" does not mean only the first 12 weeks78.8% (no consensus on a definition)
Milestones met consensus: pelvic-floor strength 95.3%, endurance 94.1%, coordination 98.8%; prolapse 97.7%; urinary and anal incontinence 97.7% each; lumbopelvic strength 95.3%; lower-limb strength 98.8%; balance 95.3%; gait 78.8%consensus
Inter-recti distance as a milestone55.3% — no consensus
Load-and-impact screen, without symptoms: walk 30 min 97.7%; single-leg balance 10 s 92.9%; single-leg squat ×10 89.4%; jog on the spot 1 min 98.8%; forward bounds ×10 87.1%; hop in place ×10 each leg 95.3%; single-leg "running man" ×10 84.7%; calf raises ×20 90.6%; single-leg bridge ×20 87.1%; single-leg sit-to-stand ×20 80%consensus (Table 3)
Screen sleep, pre-existing conditions, mental health, fatigueunanimous
Screen energy availability / REDs; milk supply (if desired); hydration97.7%; 98.8%; 98.8%
Can run with mild prolapse / urinary / anal-incontinence symptoms100% / 98.8% / 96.5%
Reasons to advise against running: severe prolapse 80%; severe urinary incontinence 75.3%; lochia 92.9%; birth complications or delayed recovery 80%; poor mental health that running may worsen 90.6%; high REDs risk 89.4%consensus (Table 5)
Not agreed as reasons: musculoskeletal injury 50.6%; consistent musculoskeletal pain 50.6%; structural pelvic-floor injury 68.2%; inter-recti distance ≥3 finger widths with doming 28.2%; diastasis with a hernia 40%; poor bone health 27.1%; poor sleep (<6 h a night, no stretch >4 h) 31.8%no consensus (Table 5)
Pre-existing medical conditions → medical clearance first91.8%
Runners who want to run despite symptoms are not told they cannot; habits are modified while impairments are treated100%
Honour the runner's wishes about when to return, even if milestones are not met; shared decision making100%; 100%
Author recommendation on timing (12/12 assent): a person-specific timeline; after a period of relative rest and recovery, gradual progression of cardiorespiratory fitness and strength training before running ("Delphi consensus recommends a minimum of 3 weeks after childbirth prior to return-to-running"); prior training load before and during pregnancy considered; "many recreational runners may be able to return to running independently without significant issues", while elite athletes and symptomatic runners should seek medical advice or a pelvic-health physiotherapist.
No cut-offs: "specific cut-offs or benchmarks were not identified"; the authors make no recommendation on prolapse or incontinence severity scores or minimum strength or balance values.
Evidence the authors cite for timing (narrative, level III): in recreational runners median first run 12 weeks (IQR 7-20) in one survey and a mean of 12.7 ± 14.3 weeks in another, with timeline not a risk factor for running pain in the latter; 49.2% returned within 6 weeks in a third; 42 elite runners returned at an average of 6 weeks and reached 80% of pre-pregnancy training by 14 weeks, with no association between injury and the return timeline; pelvic-floor function at one year did not differ between women who returned to exercise before or after 6 weeks.

Mechanisms

Measured: professional agreement only; no runner outcomes were collected.
Authors' interpretation: pelvic-floor metrics change after childbirth, especially vaginal delivery; perineal trauma and surgical birth need soft-tissue healing time; blood clots, hypertensive disorders, haemorrhage and sepsis, though rare, are more likely in the first 6 weeks; lochia can normally last up to 8 weeks, but stage-1 bleeding beyond 2 weeks likely signals pathology and delays running; high-impact activity is associated with incontinence, so impact is introduced as a graded test of symptoms.
Inference: the 3-week floor is a professional consensus on early tissue healing and medical recovery, not a measured healing time; the authors note there is no evidence on pelvic-floor healing timelines in athletes.

Practical Application

How soon after giving birth can I run again? Experts agreed: not before 3 weeks, then on a personal timeline once screened (walk 30 min, jog on the spot, hop, without leaks or pain). No date fits everyone; opinion, not trials.
Screen, do not count weeks (B, consensus): before the first run, check that walking 30 minutes and the impact tasks above cause no leaking, heaviness, bulge or pain, and ask about sleep, mood, fatigue, eating and feeding.Mild leakage or prolapse symptoms were agreed not to bar running; severe symptoms, bleeding (lochia), a birth complication, poor mental health or a high REDs risk were agreed reasons to hold off and refer. The plan after that is REF-569 (relative rest, walk-run, strength, gradual progression).
Elite and symptomatic runners go through a clinician: the authors recommend that elite athletes and anyone with symptoms seek medical advice or a pelvic-health physiotherapist before the first run; recreational runners without symptoms may manage on their own.Not from this paper; the base's own practice: the assistant names the screen and the referral and does not clear anyone to run (in line with REF-569: "a referral-and-structure tool, not clearance"; SYNTH-36's postpartum line sends pelvic-floor symptoms to regression and a pelvic-health referral).
The 12-week and 3-month figures are not rules: the panel agreed that running before 12 weeks can be possible; 12 weeks is the median first run in one survey of recreational runners, not a recommendation.The ~3-month benchmark that REF-569's cross-reference attributes to the 2019 Goom/Donnelly/Brockwell guideline is not repeated here; this paper cites Goom et al. among proposed milestone-based return approaches and for a load-and-impact screen that "has not been further investigated", not for a timeline.
What it is good for as a source: what experienced practitioners agree to screen before a postpartum runner's first run, and that the timeline is individual after a 3-week floor. What it does not show: that the screen predicts injury or symptoms, any cut-off, or outcomes in runners.

Limitations

Expert opinion. Consensus measures agreement, not truth; no screen item or the 3-week floor was tested against outcomes, and the authors' literature review is narrative, mostly level III or below.
Who answered. Mostly white women physiotherapists (Round III: 80 of 95 physiotherapists; 2 men); 12 countries, four continents, all recruited through personal networks, social media and snowball sampling; cultures with different postpartum practices may not fit, as the authors say.
Attrition. 118 to 95 across rounds; Round I was completed by 118 of the 222 professionals sent the link (Table 1 completion rate 53%; 144 started it).
A number that does not add up: the text gives a mean of 8.9 years' experience (range 2-37); Table 1 gives 8.85 to 8.99 years with a range of 1-30 in every round.
Accepted manuscript. Read from the repository copy; wording may differ from the published version, and Table 6 (timeline themes) and the figures were not readable as text.
Funding and interests: one author's professorship (Christenson Professor in Active Healthy Living) is the only funding stated; one author is an associate editor of the journal. No device maker, federation or data platform is named.
How this entry was checked and changed
Why this level

the same grade as its companion paper REF-569: a structured international consensus with an a priori threshold, but the evidence is expert opinion; the authors' own evidence summaries are narrative (not a systematic review), graded on the Sackett scale and mostly level III or below, and no recommendation was tested on runners

Full text (checked 2026-10-28)
One hundred and eighteen professionals participated in Round I, 107 participated in Round II (response rate 90.6%), and 95 participated in Round III (response rate 80.5%) (full text)
Following a minimum 3-week period of rest and recovery, an individualized timeline and gradual return to running progression can be considered (full text)
Unanimous consensus that "The timeline to return to running should be person specific"; consensus that one cannot start running before 3 weeks postpartum (85.5%) and that any birth injury should be completely healed before returning to running (97.6%) (full text)
Consensus (from Delphi respondents) was reached that returning to running before 12 weeks postpartum is possible (full text)
Ten milestones met consensus, with IRD being the only milestone that did not; specific cut-offs or benchmarks were not identified (full text)
Unanimous consensus to assess sleep, pre-existing conditions, mental health and fatigue; EA/REDs (97.7%), milk supply (98.8%) and hydration status (98.8%) also reached consensus (full text)
Elite athletes and postpartum runners who are symptomatic should seek medical advice and/or evaluation by a pelvic health PT to determine run-readiness (full text)
Moore et al reported a median return-to-run time of 12 weeks (interquartile range 7-20 weeks) (full text)
Expert opinion consensus on the rehabilitation program and running program design is presented in another publication (full text)
Competing interests: ISM is an Associate Editor of BJSM; Funding: MD is the Christenson Professor in Active Healthy Living (full text)