Are you in good physical condition?

Chronological age and biological age: you may be younger or older than you think

You have a chronological age, determined by the calendar, whose birthday you probably celebrate every year. But you also have a biological age, based on the age of your body systems. Your biological age is not fixed. On the contrary, it is influenced daily by your lifestyle choices, including your physical activity, diet, stress, sleep, etc.

How your body and mind function in your 60s, 70s, 80s and beyond depends a little on genetics, and a big part on your lifestyle habits, especially those that have been going on for many years. . This is why you may be younger or older than your chronological age suggests. To find out where you are on the scale, simply measure your fitness age. Your fitness age contributes to your biological age. It is considered to be a better indicator of longevity than chronological age.

How is fitness age measured and what does it say about your life expectancy?

Fitness Age is based on the concept of VO2 max, which is the maximum volume of oxygen you can consume while performing physical activity. VO2 max can be used as a measure of your cardiovascular endurance. If yours is below average compared to others your age, it means your fitness age is above your chronological age. Conversely, an above average VO2 max could mean that your fitness age is younger than your age in years.

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Even better, it is possible to improve your VO2 max, which means your fitness age may decrease even as you age. The main problem with VO2 max as a method of estimating longevity is that few people know theirs, and determining it usually requires high-tech testing on a treadmill.

An algorithm based on the study of 5,000 people and tested on 55,000 adults

Researchers at the Norwegian University of Science and Technology, however, were able to develop an algorithm based on the aerobic capacity, waist circumference, heart rate and physical activity habits of nearly 5,000 people. This resulted in a method for fairly accurately estimating a person’s VO2 max.

The researchers then set out to determine whether VO2 max actually correlates with life expectancy. They analyzed the VO2 max, fitness age and chronological age of over 55,000 adults and found a strong association. People with the worst VO2 max results (85% or more below average for their age, meaning they were of high fitness age), had an 82% higher risk of premature death, than people whose fitness age was the same or even lower than their chronological age. The authors consider fitness age to be a better predictor of premature death than risk factors such as being overweight, high blood pressure, or smoking.

Senior athletes have an incredibly young fitness age

If you need motivation to get moving, consider the following: When researchers measured the fitness ages of athletes competing in the National Senior Games (or Senior Olympics), they found that older was several decades younger than their chronological age. Dr. Pamela Peeke, assistant professor of medicine at the University of Maryland, and Ulrik Wisloff, professor at the KG Jebesen Center for Exercise in Medicine at the Norwegian University of Science and Technology, who led the study in question, we worked together to determine how lifestyle affects physical health age.

They measured the physical health age of more than 4,200 senior athletes. While the average chronological age was 68, the average fitness age was 43. Dr. Wisloff said in The New York Times, “It’s a huge difference…I expected there would be a big difference, because these people have been training for years. However, I was surprised that it was so important. »

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Just enter a few details (such as your age, gender, waistline, height, and physical activity habits). The algorithm will estimate your fitness level, and tell you both your VO2 max and your fitness age.

* Presse Santé strives to transmit medical knowledge in a language accessible to all. In NO CASE can the information given replace medical advice. [HighProtein-Foods.com]

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