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Which exercises should you avoid during pregnancy?

Scuba diving is out — gas bubbles can form in the baby’s blood.

Medically reviewed by Dr. Christopher Sterling, obstetrician ·

The short answer

Most exercise is safe and recommended (about 150 minutes of moderate activity a week). Avoid scuba diving, contact sports, activities with a high risk of falling, hot yoga, and lying flat on your back for long periods after the first trimester.

Illustration of a rolled yoga mat and a light dumbbell

Why it matters

Scuba diving: the baby has no protection against decompression sickness, and gas bubbles can form in their circulation.

Contact and fall-risk sports (boxing, horse riding, downhill skiing, gymnastics) risk a blow to the bump.

Lying on your back for long stretches after about 16 weeks can press on a major vein and make you feel faint.

Regular exercise, on the other hand, lowers the risk of gestational diabetes and helps with sleep, mood and back pain.

What to do

  • Aim for 150 minutes a week of walking, swimming, cycling on a stationary bike or pregnancy yoga.
  • Swap back-lying moves for side-lying or inclined versions.
  • Skip scuba, contact sports, hot yoga and high-altitude exercise if you’re not acclimatised.
  • Stop and call your midwife if you have bleeding, dizziness, chest pain or fluid leaking.

Common questions

Can I keep running while pregnant?

If you ran before pregnancy and your pregnancy is healthy, you can usually continue, adjusting pace as you go. Check with your midwife.

Sources

  1. ACOG — Exercise during pregnancy
  2. NHS — Exercise in pregnancy

Medically reviewed by Dr. Christopher Sterling, obstetrician, on against the sources above. Guidance can differ between countries — always follow the advice of your own midwife, doctor or pharmacist. Medical disclaimer.

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