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Study finds being pregnant is the same as running a 40-week marathon!

You may feel far from it, but new research finds that pregnant women are basically endurance athletes!

In fact, scientists say the physical intensity of carrying a baby is the same as running a 40-week marathon.

Yep, that’s right. You deserve a medal, mamma!


One of the many side effects of pregnancy is feeling fatigued, and no wonder! Women are burning off as much energy as Ironman competitors.

According to researchers at Duke University, pregnant women should be placed in the same category as athletes who have just competed in a triathlon when it comes down to endurance.


Experts recorded the resting metabolic rates (calories burned while the body is relaxing) of top athletes competing in the Tour de France, a 3,000 mile (4828km) race.

According to the study, the most anyone can sustain is burning calories at 2.5 times the person’s BMR, or about 4,000 calories a day for the average adult.


Pregnancy is, of course, very long compared to other sporting events but researchers found mums-to-be operate at 2.2 times their BMR, which is almost the maximum possible, every day, for nine months.

“Pregnancy is the most energetically expensive activity the human body can maintain for nine months,” Duke University professor Herman Pontzer, who co-led the study tells The Post.

“I don’t think any mother is surprised to learn how difficult pregnancy is!

“But I’ve had a few friends — including my wife — tell me it was good to see pregnancy recognised as extremely challenging.”

So there you go. Basically, women are amazing!

Join The Healthy Mummy for a healthy pregnancy


The Healthy Mummy’s 28 Day Weight Loss Challenge has a host of low-intensity exercises for you to do while you are pregnant, including our  Mind, Body, Breath exercises.

Taking time each day for yourself can significantly lower stress and keep your energy levels high.

Join the 28 Day Weight Loss Challenge TODAY!

Want to shift your baby weight but feel like you have NO TIME in your day to exercise and eat healthily? That’s where the Healthy Mummy’s 28 Day Weight Loss Challenge can help.

Our Challenge entails: 

  • 28 days of at home exercise routines (no gym needed) – with video instruction
  • Customisable and breastfeeding friendly meal plans
  • Time-efficient exercises for busy mums – under 30 mins
  • Challenge combines Pilates exercises with interval and circuit training (HIIT)
  • Suitable for basic to advanced fitness levels.
  • Home to thousands of EASY-TO-MAKE recipes.

To find out more about joining the 28 Day Weight Loss Challenge for £1 click here.

PLUS – connect with THOUSANDS of other mums on the 28 Day Weight Loss Challenge by joining our free support community here


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