Exercise during pregnancy: safe and beneficial

Updated Six Habits Editorial Team
A pregnant woman walking in a park with her partner
The short answerFor most pregnant women without complications, physical activity is not only safe but beneficial. ACOG and the 2019 Canadian guideline recommend at least 150 minutes of moderate activity a week spread over at least 3 days. This level of activity is linked to about 40% lower risk of gestational diabetes, preeclampsia and gestational hypertension.

Key points

What the guidelines recommend

The American College of Obstetricians and Gynecologists recommends that pregnant women without complications get at least 150 minutes of moderate aerobic activity a week. The 2019 Canadian guideline, based on a series of systematic reviews, makes the same recommendation, spread over at least 3 days, plus pelvic floor training. Meeting these targets was linked to about 40% lower risk of gestational diabetes, preeclampsia and gestational hypertension, without increasing the risk of miscarriage, preterm birth or low birth weight (Mottola et al., 2018). The WHO gives similar advice (Bull et al., 2020).

How to tell moderate intensity

Ideas

Frequently asked questions

Is it safe to start exercising while pregnant?

Yes, for most women. Start gradually with walking or swimming and build up.

Which activities should I avoid?

Contact sports, activities with a high risk of falling, scuba diving and exercise in extreme heat. After the first trimester, avoid long periods lying flat on your back.

Sources

  1. Mottola et al. (2018). 2019 Canadian guideline for physical activity throughout pregnancy. British Journal of Sports Medicine 52(21):1339-1346. doi:10.1136/bjsports-2018-100056
  2. Bull et al. (2020). World Health Organization 2020 guidelines on physical activity and sedentary behaviour. British Journal of Sports Medicine 54(24):1451-1462. doi:10.1136/bjsports-2020-102955
  3. Sherrington et al. (2019). Exercise for preventing falls in older people living in the community. Cochrane Database of Systematic Reviews 2019(1). doi:10.1002/14651858.CD012424.pub2
  4. American College of Obstetricians and Gynecologists. Physical Activity and Exercise During Pregnancy and the Postpartum Period. www.acog.org

Prepared according to our evidence methodology and the principles of lifestyle medicine. For education only; it does not replace advice from your doctor.

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