Getting back to exercise after childbirth: when and how to restart strength training

There is no universal date. After an uncomplicated vaginal birth, gentle walking and breathing exercises can generally resume within days, depending on how you feel. General guidance on physical activity after birth, such as the WHO recommendations, points to a gradual return, with the long-term aim of reaching about 150 minutes of moderate-intensity activity per week.

The postnatal check-up, in France between 6 and 8 weeks after birth, is the key moment to ask for the green light for strength training, running or impact sports. If the birth was complicated (significant tear, heavy bleeding, C-section), the wait may be longer. When in doubt, progress in steps and ask for advice.

During pregnancy and birth the pelvic floor is heavily loaded, whether or not there was a tear or an episiotomy. In France, pelvic floor rehabilitation, usually around ten sessions prescribed by a doctor or midwife and done with a midwife or physiotherapist, is commonly offered after the postnatal check-up. It assesses pelvic floor tone, teaches you to contract and release it, and helps prevent urinary leaks or a feeling of heaviness.

Heavy loads, jumping and running increase pressure on the pelvic floor. Restarting too fast can encourage leaks or lasting discomfort. Waiting for the pelvic floor assessment before lifting heavy or running is therefore common sense, not lost time. Leaking during effort is not inevitable: talking about it helps, because it can be treated.

Diastasis recti is a separation of the two rectus abdominis muscles on either side of the linea alba. It is very common in late pregnancy and often reduces on its own during the first weeks after birth. A common sign is a bulge, a kind of « dome », along the middle of the belly when you sit up or tighten your abs. Only a professional can assess it properly: a midwife, physiotherapist or doctor.

Until the diastasis has been assessed, avoid exercises that make the belly bulge: sit-ups, leg raises, very intense planks and heavy lifts with breath-holding. Favour deep breathing, transversus abdominis work and progressive exercises approved by your therapist. A diastasis does not necessarily rule out exercise, but it means choosing movements carefully.

A C-section is abdominal surgery: deep tissues take several weeks to heal, even when the skin looks closed. Gentle walking is generally encouraged early, but heavy lifting, abdominal work and strength exercises usually wait for your doctor's approval, often around 6 to 8 weeks, sometimes longer.

Start with walking, mobility and breathing, then add light lower-body exercises and upper-body work that does not load the belly. If the scar pulls, turns red or hot, oozes, or if you have a fever, stop and see a doctor. Pelvic floor rehab remains useful after a C-section, because pregnancy loaded the pelvic floor in every case.

Yes, in general. Moderate physical activity does not affect milk quantity or quality in most women. Mainly remember to hydrate well, eat enough (breastfeeding raises energy needs) and wear a supportive bra. Feeding or pumping before the session can limit the discomfort of heavy breasts.

Avoid very restrictive diets while breastfeeding: a large calorie deficit can make you tired and hamper recovery. If you notice a drop in milk, unusual fatigue or pain, lower the intensity and talk to your midwife or a lactation consultant. Hormonal changes in this period can also make joints looser: take care with your warm-up and technique.

Think in phases rather than dates. Start with walking, breathing and bodyweight movements, then reintroduce light loads while keeping reps in reserve. The aim of the first sessions is not to get back to your previous level, but to get moving again without pain, leaks or belly bulging. Two to three short sessions per week are plenty at first, especially with lack of sleep.

The table below gives an indicative guide, to adapt to your birth and to your therapist's advice. Move to the next stage only when the previous one has been symptom-free for one to two weeks. Step back without guilt if discomfort appears.

Stop the session and talk to a healthcare professional if you notice urinary or gas leaks during effort, a feeling of heaviness or a « bulge » in the vagina, belly bulging during effort, persistent pelvic or back pain, or bleeding that restarts or increases.

Scar pain, extreme fatigue, dizziness or very low mood also deserve attention: the postpartum period is not only physical. If you feel sad or anxious for several weeks, talk to your doctor or midwife. Training should help you, not exhaust you.

A gradual return means writing down what you do so you do not go too fast. In GymProgress you log your sessions, sets, loads and reps, with RPE to note perceived effort, and the rest timer helps you keep suitable breaks. That way you can check that loads rise slowly from one week to the next.

The weekly weigh-in lets you follow your body weight without stepping on the scale every day, which is calmer after a pregnancy. The app is free, available in French, English and Arabic, on Android and on the web. It is a logbook, not a medical coach: the green light still comes from your doctor or midwife.

Ask your doctor or midwife for approval before strength training, running and impact sports, often at the postnatal check-up at 6 to 8 weeks.

Have your pelvic floor assessed before heavy loads and impact: pelvic floor rehab comes before abdominal work.

With a diastasis, avoid movements that make the belly bulge and favour exercises approved by your therapist.

After a C-section, deep healing takes time: restart with walking first, then gradual strengthening.

Breastfeeding remains compatible with moderate activity if you hydrate and eat enough. Progress with 2 to 3 short sessions per week and stop at the first leak, heaviness or pain.