Returning to HYROX after having a baby: an evidence-based timeline

There's no prize for being the fastest back to the sled. The goal is coming back without leaking, pain or a setback, and then getting fitter than before.

What the guidelines recommend

The most widely used postnatal return-to-running guidelines (Goom, Donnelly & Brockwell, 2019) recommend:

0–6 weeks: walking, breathing and gentle pelvic floor and deep core work.

From around 6 weeks (after your postnatal check): progressive low-impact strength work. Body-weight squats, bridges, step-ups and light carries, building to loaded strength.

Running: not before about 12 weeks, and only once you can complete these without leaking, heaviness or pain: walk 30 minutes; balance on one leg for 10 seconds; 10 single-leg squats per side; jog on the spot for 1 minute; 10 forward bounds; 10 hops per leg; 10 "running man" reps per side.

Those tests are a useful filter for HYROX too. If hopping and bounding are symptom-free, wall balls and burpee broad jumps can be reintroduced gradually.

A sensible HYROX progression

Rebuild strength before intensity. Sleds and carries are relatively low-impact and great early tools. Start light, focus on breathing out on effort, and add load weekly.

Run–walk first. Intervals like 1 minute jogging and 1 minute walking, building towards continuous easy running over several weeks.

Add jumping last. Wall balls and broad jumps put the most load on the pelvic floor. Low reps first, more only if symptom-free.

Consider Doubles for your comeback race. Splitting the stations with a partner halves the station volume while you still run the full 8 km.

Get assessed

The guidelines recommend a pelvic health physiotherapy assessment for every woman returning to running postpartum, whether the birth was vaginal or caesarean. Sleep deprivation and breastfeeding also raise your energy and recovery needs, so be patient with your numbers.

General education, not medical advice. If something hurts, leaks, or stops (like your period), see a qualified clinician.

Racing mixed doubles? Women are the scarce side of the mixed pool on Find HYROX Partner — men are already waiting at most races, so women usually match fastest. Find a mixed doubles partner (free) →

Frequently asked questions

When can I start running after having a baby?

Postnatal return-to-running guidelines suggest not before about 12 weeks after birth, and only once you can pass basic load-and-impact tests without symptoms. Many women need longer, and that's normal.

What are the signs I'm doing too much postpartum?

Leaking, a feeling of heaviness or dragging in the pelvis, pain, or bleeding that returns after it had stopped. Back off and get assessed by a pelvic health physiotherapist.

Can I do HYROX while breastfeeding?

Many women do. Expect a higher energy and fluid need, feed or express before training if that's more comfortable, and wear a properly supportive sports bra.

References

  1. Goom T, Donnelly G, Brockwell E. Returning to running postnatal — guidelines for medical, health and fitness professionals managing this population. 2019. (Endorsed and widely used in UK practice.)
  2. Dumoulin C, Cacciari LP, Hay-Smith EJC. Pelvic floor muscle training versus no treatment, or inactive control treatments, for urinary incontinence in women. Cochrane Database Syst Rev. 2018;10:CD005654.

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