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Getting Back in Shape After a Baby, an Injury or Years Off
Updated 7 min read9 sources
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The short answer
Start by getting cleared where it applies: at your postnatal check after a baby, or by your clinician or physical therapist after an injury. Then begin smaller than you think, with walking and a simple full-body strength routine on two days a week, and build up slowly. Stop if something hurts, and measure progress by getting stronger, not only by the scale.
- Get cleared first: at your postnatal check after a baby, by your clinician or physical therapist after an injury, and by your doctor if you have a health condition.
- After a baby, pelvic floor exercises and walking come first, while sit-ups, planks and high-impact exercise wait.
- A simple full-body strength routine on two days a week meets the adult guideline for muscle strengthening.
- Start easier than you think, change one thing at a time, and stop if something hurts.
- Judge progress by getting stronger, not just by what the scale says.
How do you get back in shape after a long break?
Get cleared if you need to, then begin smaller than you think and build slowly. For most adults, that means walking plus a simple full-body strength routine on 2 days a week, which matches the minimum for muscle-strengthening activity in both the WHO and US guidelines [1][2].
It matters less whether your break came from having a baby, an injury or years of life getting in the way. The principles are the same:
- Clearance first, where it applies. Your postnatal check after a baby, your clinician or physical therapist after an injury, and your doctor if you have a health condition or symptoms.
- Start easy. The first few weeks are about building the habit, not testing your limits.
- Progress slowly. Change one thing at a time.
- Stop if something hurts.
- Measure progress by strength, not only by the scale.
This guide is general education, not a personal exercise or medical plan. It is not written for pregnancy, and it does not replace advice from the people looking after you.
When can you start exercising again?
After having a baby
Get cleared at your postnatal check first. The NHS describes the postnatal check at 6–8 weeks as the time to talk about any physical problems you have noticed since giving birth [3], so mention anything that is bothering you.
ACOG, the US professional body for obstetricians and gynecologists, says exercise is safe and beneficial for most women after pregnancy [4]. Its main points:
- Pelvic floor exercises and walking can begin soon after birth, if it is medically safe for you [4].
- Return to exercise gradually [4].
- If you were active before pregnancy, you can return to your previous activities [4].
- After a cesarean birth (C-section) or a birth with complications, your return should be individually cleared by your clinician [4].
In practice: ask your midwife or doctor what is medically safe for you in the early weeks, and get cleared at your postnatal check first before you start a strength routine.
After an injury
Follow the advice of whoever treated you, whether that is a doctor or a physical therapist. Ask them directly which movements are fine for now, which to avoid, and whether you can train the rest of your body while the injured area recovers. If a movement causes pain in or around the injury, stop and check back with them.
After years off
If you have a health condition, or you notice symptoms like chest pain, dizziness or unusual breathlessness when you are active, talk to your doctor before you start. Otherwise, walking and the gentle routine below are a sensible, low-key place to begin.
Starting with pelvic floor exercises and walking after a baby
If you have recently had a baby, your first training is gentle and mostly invisible.
Pelvic floor exercises. The NHS suggests building up to 10 repeats, at least 3 times a day [3]. If you are not sure you are doing them correctly, ask your midwife or doctor.
Walking. ACOG notes that walking can begin soon after birth if it is medically safe for you [4]. Start with short, easy walks and add time gradually as you feel ready.
What to hold off on. The NHS advises avoiding exercises such as sit-ups, planks and high-impact exercises to start with [3]. That means no crunches, jumping or running for now, even if you feel keen.
If your tummy muscles have separated. For diastasis recti, where the tummy muscles have separated, the NHS says deep abdominal exercises and pelvic floor exercises can help [3]. Ask at your postnatal check how to do these safely.
The WHO's 2020 guidelines [5] also include recommendations for women after childbirth, covering regular moderate activity, muscle strengthening and pelvic floor training [5]. Once you are cleared, the strength routine below is a gentle way to build toward that.
A simple 2-day-a-week strength routine for beginners
Muscle-strengthening activity that works all major muscle groups on 2 or more days a week is the guideline for adults [1][2]. This routine covers that with basic movements you can do at home. Do the same session twice a week on non-consecutive days. It is general education, not a prescription.
| Movement | Start here | When that feels easy |
|---|---|---|
| Sit-to-stand (box squat) | Stand up from a sturdy chair and sit back down slowly, using your hands if needed | Stop using your hands, then try a slightly lower seat or hold a light weight |
| Wall or incline push-up | Hands on a wall, body in a straight line, bend and straighten your arms | Hands on a kitchen counter, then a lower sturdy surface |
| Row | Pull a resistance band, anchored at chest height, toward your ribs | Use a firmer band, or a dumbbell with one hand supported on a bench |
| Glute bridge | Lie on your back with knees bent and lift your hips | Pause at the top, or move on to a hip hinge holding a light weight |
| Carry | Walk tall while holding a shopping bag in each hand | Walk a little farther, or carry slightly heavier bags |
How to do each session
- Warm up with a few minutes of easy walking or marching in place.
- Repetitions: move slowly and with control, and stop while you could still do a few more with good form. Keep breathing steadily.
- Rounds: start with a single round of every movement. When that has felt comfortable for a couple of weeks, add a second round.
- Rest as long as you need between movements.
Rules that keep you safe
- Stop if it hurts. Working hard should feel like effort, not pain. If something hurts, especially around an old injury, stop and check with your doctor or physical therapist.
- Progress slowly. Change one thing at a time: a few more repetitions, a slightly harder version or an extra round, not all three at once.
- After a baby: start only once you have been cleared, and talk to your doctor or midwife if anything does not feel right.
- After an injury: swap or skip any movement your clinician has asked you to avoid.
- Keep it manageable. Two sessions you can repeat every week are more useful than one exhausting session you dread.
How much protein do you need when you are tired and busy?
Protein supports your strength training, especially if you are also trying to lose weight. When you are short on sleep or time, though, it can easily slip.
Some reference points for healthy adults:
- If you exercise: the International Society of Sports Nutrition suggests 1.4–2.0 g per kg of body weight a day (about 0.64–0.91 g per lb) [7].
- During active weight loss: a joint nutrition Advisory notes that targets of 1.2–1.6 g/kg a day (about 0.55–0.73 g/lb) have been proposed [6].
- Per meal: about 20–40 g of protein per meal is a practical aim [7].
Pregnant or breastfeeding? These ranges, and our protein calculator, are not designed for pregnancy or breastfeeding, when needs are different. Ask your midwife, doctor or a dietitian.
Kidney disease or reduced kidney function? Your protein target needs to come from your care team.
Low-effort protein ideas
When you are exhausted, choose foods that need little or no cooking:
- Greek yogurt or skyr
- Eggs, boiled in a batch
- Cottage cheese
- Canned tuna, salmon or chicken
- Ready-cooked chicken, tofu or lentils
- Milk or a protein shake
Keep a few of these within reach so the easy option is also the protein option.
How do you know it is working? Track strength, not just the scale
When you are getting back in shape, the scale can be a frustrating judge. Early on, you may get noticeably stronger while your weight barely moves.
If weight loss is one of your goals, slow is fine. The CDC notes that people who lose weight at a gradual, steady pace of about 0.5–1 kg (1–2 lb) a week are more likely to keep it off [8]. Strength training matters here too: a meta-analysis across the lifespan found that resistance-training programs preserve lean mass during fat loss in a way aerobic-only programs do not [9].
Three simple things to track each week:
- Strength. Write down which version of each movement you did and how many repetitions. Moving from wall push-ups to counter push-ups is real progress.
- Weight trend. If you weigh yourself, compare weekly averages rather than single days.
- Everyday life. Carrying a car seat, climbing stairs or getting up off the floor feeling easier all count.
If you use a smart scale, treat its body-fat number as an estimate and watch the trend, not the daily reading. Are smart scales accurate? explains why. If you are over 40, muscle loss after 40 covers why strength matters more with age.
Dyadfit is being built for this kind of steady progress: a protein target, a couple of short strength sessions a week and a weekly check on whether you are keeping muscle while you lose fat. There is more at getting back in shape.
Frequently asked questions
When can I start exercising after giving birth?
Get cleared at your postnatal check first. ACOG notes that pelvic floor exercises and walking can begin soon after birth if it is medically safe for you, so ask your midwife or doctor what applies to you.
Is it safe to exercise after a C-section?
After a cesarean birth, ACOG says your return to exercise should be individually cleared by your clinician. Get cleared at your postnatal check first, then build up gradually.
How often should I work out when getting back in shape?
Guidelines recommend muscle-strengthening activity for all major muscle groups on at least two days a week for adults. Two short full-body sessions a week, plus walking, is a manageable way to start.
What exercises should I avoid with diastasis recti?
The NHS advises avoiding exercises such as sit-ups, planks and high-impact exercises to start with after pregnancy, and says deep abdominal and pelvic floor exercises can help. Ask at your postnatal check how to do them safely.
How much protein do I need while breastfeeding?
Protein needs are different while breastfeeding, and general ranges and our calculator are not designed for it. Ask your midwife, doctor or a dietitian.
Sources
- Bull FC et al. World Health Organization 2020 guidelines on physical activity and sedentary behaviour. Br J Sports Med 2020;54:1451–1462. pubmed.ncbi.nlm.nih.gov/33239350/
- US Department of Health and Human Services. Physical Activity Guidelines for Americans, 2nd edition. 2018. odphp.health.gov/sites/default/files/2019-09/Physical_Activity_Guidelines_2nd_edition.pdf
- NHS. Your post-pregnancy body. nhs.uk/conditions/baby/support-and-services/your-post-pregnancy-body/
- American College of Obstetricians and Gynecologists. Physical Activity and Exercise During Pregnancy and the Postpartum Period. Committee Opinion No. 804, 2020. acog.org/clinical/clinical-guidance/committee-opinion/articles/2020/04/physical-activity-and-exercise-during-pregnancy-and-the-postpartum-period
- World Health Organization. WHO Guidelines on Physical Activity and Sedentary Behaviour. 2020. ncbi.nlm.nih.gov/books/NBK566046/
- Mozaffarian D et al. Nutritional priorities to support GLP-1 therapy for obesity: a joint Advisory from the ACLM, ASN, OMA and TOS. Am J Clin Nutr 2025;122:344–367. pmc.ncbi.nlm.nih.gov/articles/PMC12304835/
- Jäger R et al. International Society of Sports Nutrition Position Stand: protein and exercise. J Int Soc Sports Nutr 2017;14:20. ncbi.nlm.nih.gov/pmc/articles/PMC5477153/
- Centers for Disease Control and Prevention. Steps for Losing Weight. cdc.gov/healthy-weight-growth/losing-weight/index.html
- Lopez P et al. Systematic review and meta-analysis of resistance training and body composition in people with overweight and obesity across the lifespan. Obes Rev 2022;23:e13428. pubmed.ncbi.nlm.nih.gov/35191588/
Dyadfit is a wellness app for nutrition and training. It does not prescribe, dose or give advice about medication, and it is not a medical device. Talk to your doctor or clinician before changing your diet, exercise or treatment. Every figure in this guide is checked against the original source. Read our editorial policy.