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UN data helps balance New Year’s weight loss decisions – Global issues

The International Atomic Energy Agency (IAEA) published useful new data from Double Labeled Water Database (DLW), which provides detailed information on the effectiveness of exercise for promoting weight loss.

The result is not as simple as you think.

“When signing up for exercise programs to lose weight, most people lose a little bit of weight, some people lose a lot, but an unlucky few actually gain weight.” speak John Speakman, chair of the DLW Database Management Group and one of the study’s authors.

Treadmill effect

According to research, in people with a normal body mass index between 18.5 and 24.9, the body will compensate for the calories burned during exercise by 28% – that is, just 72% of the calories. calories will be lost throughout the day.

However, with age and weight, this ratio drops, and those with the highest body mass index will only lose 51% of calories burned during exercise.

Research confirms that individuals differ in the way their bodies use energy budgets and that people living with obesity may have difficulty losing weight because their bodies store fat efficiently. fruit.

 Athlete and Tokyo 2020 Refugee Olympic Team member Anlelina Nadai Lohalith, originally from South Sudan, practices at a track in Nairobi.

© UNHCR / Benjamin Loyseau

Athlete and Tokyo 2020 Refugee Olympic Team member Anlelina Nadai Lohalith, originally from South Sudan, practices at a track in Nairobi.

Not just exercise

There are many health benefits that can be achieved by being more active and exercising but relying on exercise alone will not help you lose weight.,” said Alexia Alford, IAEA nutritionist and co-author.

The weight loss guidelines do not consider the reduction of calories burned through other normal life functions because the body compensates for the calories burned during exercise.

“If you increase your activity, your body will compensate for it in other areas and cut calories burned during breathing, digestion, restlessness and generally maintaining and activity of the body”. “This can actually add up quite a bit.”

Combining a healthy diet with a more balanced lifestyle is key to maintain the caloric deficit for weight loss, according to co-authors.

Using DLW to study a body’s total energy expenditure is not new, but the high cost of oxygen-18, and the machines to measure it, have kept studies on a small scale until now.

In 2018, the IAEA was approached by a group of DLW investigators who wanted to make their datasets more widely available, and IAEA DLW Database has been developed.

Today, this database contains DLW data from more than 7,600 people, making it the largest collection in the world.

Free and accessible to researchers with management-approved defining questions, IAEA The DLW database contains information about diverse cases, from athletes to cancer patients and people with cerebral palsy.

‘Untapped treasure’

As most of the data comes from studies done in Western countries, such as the United States and the Netherlands, the IAEA is looking to expand the data set even further, to include Asia, Africa and the Americas Latin.

Next year, it will start a joint research project to add more data on lower-income countries.

“Our database is an invaluable asset for better understanding how the human body works. Study this exercise as a great example; while most DLW studies typically involve about 30 subjects, exercise studies have more than 1,600, making the data very solid,” said Ms. Alford.

“The data in the IAEA DLW database is an untapped treasure trove and we encourage researchers to contact us to gain access to its content and contribute their own datasets. surname”.

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