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UK Chief Medical Officers issue advice for health professionals on physical exercise during pregnancy

UK Chief Medical Officers issue advice for health professionals on physical exercise during pregnancy:

  • New advice on types and amount of safe physical exercise for pregnant women
  • Recommends up to 150 minutes of moderate exercise a week, plus strength and balance activities
  • Women encouraged to listen to their bodies and adapt their physical activity accordingly
  • Recommendations aim to reduce obesity, diabetes and address other health concerns for pregnant women. 

The UK’s Chief Medical Officers (England, Scotland, Wales and Northern Ireland) have jointly released new advice on physical exercise for expectant mothers— believed to be the first of its kind in the world.

The new recommendations aim to reduce issues such as obesity, diabetes and other health concerns during pregnancy. The latest evidence suggests pregnant women should carry out around 150 minutes of ‘moderate intensity’ activity every week.

This is described as ‘activity that makes you breathe faster’ while still being able to hold a conversation. 

This new advice is being issued in the form of an infographic, aimed at providing midwives, nurses, GPs, obstetricians, gynaecologists, as well as the leisure sector, with the latest evidence on physical activity during pregnancy.

Chief Medical Officer Professor Dame Sally Davies said:

“We want to ensure pregnant women are aware of the benefits of being active throughout their pregnancy and are clear about the type of activities that are safe.

“The latest evidence shows that regular, moderate exercise during pregnancy reduces hypertensive disorders, improves cardiorespiratory fitness, lowers weight gain and reduces the risk of diabetes.

“We encourage pregnant women to listen to their body and adapt their exercise regime accordingly. A general rule is if it feels pleasant, keep going; if it is uncomfortable, then stop and seek advice. 

Women who have not been active before pregnancy are recommended to follow a gradual progression of exercise—beginning with 10 minute bouts of moderate intensity exercise, gradually building up to 150 minutes. The activity should be spread throughout the week, and it is important to remember that ‘every activity counts’. 

The new advice was constructed by the CMO Expert Committee for Physical Activity and Pregnancy, which included midwives, obstetricians, exercise physiologists, GPs, public health consultants, sports medicine experts, exercise professionals, nursing and research scientists. The project was led by Professor Marian Knight and Dr Charlie Foster from the University of Oxford. The aim was to produce evidence-based messaging for health professionals to use with the public. The infographic was developed and tested with panels of health professionals and pregnant women before consultation with more than 250 UK-based doctors and midwives. 

Health professionals are encouraged to use this infographic to discuss the benefits of physical activity with all pregnant women, to help them maintain a healthy lifestyle, with approximately 1 in 20 women being recorded as obese during pregnancy.

The key points are:

Pregnant women who are already active should be encouraged to maintain moderate physical activity levels.

Women may need to adapt their activity throughout their pregnancy. For example, replacing contact sports with a non-contact sport or an appropriate exercise class.

Importantly, the evidence supporting this infographic found no evidence of harm for mother or infant resulting from moderate intensity physical activity. 

Those who were not active before their pregnancy are advised to avoid intense exercise, such as running, jogging, racquet sports and strenuous strength training. But some activities can be adapted.

The study recommends pregnant women avoid activities where there is an increased risk of falling, trauma or high impact injuries. These include skiing, water skiing, surfing, off-road cycling, gymnastics, horse riding and contact sports such as ice hockey, boxing, football or basketball. They are also discouraged from exercise that requires lying flat on their back after the first trimester. 

If you experience breathlessness before or following minimal exertion, headaches, dizziness, chest pain, muscle weakness affecting balance and calf pain or swelling, seek medical advice. Women may also be advised to reduce/stop physical activity following pregnancy complications such as vaginal bleeding, regular painful contractions or amniotic fluid leakage.

The final safety message is a common sense ‘don’t bump the bump’, referring to all activities which place pregnant women at an increased risk of injury through physical contact.   

Notes to editors: For further information, please contact media and campaigns officer Dave Betros-Matthews.  


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