WWB INSIGHT

WWB WATCH: New Study/New Calculator Looks at ‘Fitness Age’ and Your Capacity for Longevity

 

THE WATCH:  Moderate exercise just may be one of the secrets to longevity according to a new Fitness study recently released. It is important to emphasize ‘one of’ as the body is a complex ‘system’ and I prefer to see health and wellness as a tri-operative function of the mind, body and spirit . The concept of Fitness Age has been developed by researchers at the Norwegian University of Science & Technology in Trondheim, who have studied fitness and how it relates to wellness for years. According to the New York Times article attached below, Fitness age is primarily determined by your VO2max, which is a measure of your body’s ability to take in and utilize oxygen. VO2max indicates your current cardiovascular fitness level and can be used to compare your fitness of other people the same age, providing you with a benchmark. This is all sounds fairly simple and the 11 O’Clock news might give you a 60 second report sounding very definitive but with most scientific studies like this we need to look at the context to fully understand the findings of the study.

WHAT MATTERS:  So how meaningful was this study? The researchers studied over 55,000 Norwegians and concluded that the people who had a VO2max of 85% below their peers the same age had an 82% chance of dying prematurely. This is pretty significant and certainly concludes that exercise is an important part of staying youthful and living longer. I cant help but think about my own Mom who suffered from severe Rheumatoid Arthritis most of her life and made an effort however difficult and uncomfortable to ‘walk’. In harsh winters she actually made sure to walk across her home back and forth. The benefits of those walks paid off, because even now as advanced cancer ravages her body and organs ( in addition to her RA), her heart is doing fine and she is still here. For full context, she also followed a very healthy diet and managed her weight over the years. She would not be the perfect ‘peer’ in this study and probably would score lower in the test they use to gauge fitness age. But I feel what matters most importantly is the body needs to move. Exercise is really important not just to lose weight or stay slim but to manage stress and condition the heart and do what our bodies are meant to do–MOVE.

WWB TAKEAWAY: Professor Ulrich Wisloff who led the study in Norway said, ‘Just exercise’. If your fitness age exceeds your chronological age, the good news is you can always improve it. I agree and believe the more we know about our body the better we can take care of it. Dr. Wisloff plans on directly comparing his study to other established studies like the Framingham Risk Calculator (which does not include fitness in its variables). What is also pointed out at the very end of the NYT article is the study was based on just Norwegians which may not be representative of the rest of us in the world. This key point would not make it to the 11 O’clock news and it is a pretty important factor to consider. My favorite term in health and wellness is BIO-INDIVIDUALITY and the most important takeaway here is ‘Know Your Own Body’ and learn to take care of it at your best optimum level. My mother did the best she could with the hand she was dealt, and so can you!

Here are the two tests discussed today and remember if you take the test to consider your own bio-individuality ( full personal picture) into account and make improvements where you can.

VO2max Fitness Calculator https://www.worldfitnesslevel.org/#/

Framingham Risk Calculator http://cvdrisk.nhlbi.nih.gov/calculator.asp

Truly Herself,
Lauroly
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What’s Your Fitness Age?

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 October 15, 2014 12:01 am

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Phys Ed
PHYS ED

Gretchen Reynolds on the science of fitness.

You already know your chronological age, but do you know your fitness age?

A new study of fitness and lifespan suggests that a person’s so-called fitness age – determined primarily by a measure of cardiovascular endurance – is a better predictor of longevity than chronological age. The good news is that unlike your actual age, your fitness age can decrease.

The concept of fitness age has been developed by researchers at the Norwegian University of Science and Technology in Trondheim, who have studied fitness and how it relates to wellness for years.

Fitness age is determined primarily by your VO2max, which is a measure of your body’s ability to take in and utilize oxygen. VO2max indicates your current cardiovascular endurance.

It also can be used to compare your fitness with that of other people of the same age, providing you, in the process, with a personal fitness age. If your VO2max is below average for your age group, then your fitness age is older than your actual age. But if you compare well, you can actually turn back the clock to a younger fitness age. That means a 50-year-old man conceivably could have a fitness age between 30 and 75, depending on his VO2max.

Knowing your fitness age could be instructive and perhaps sobering, but it also necessitates knowing your VO2max first, which few of us do. Precise measurement of aerobic capacity requires high-tech treadmill testing.

To work around that problem, the Norwegian scientists decided several years ago to develop an easy method for estimating VO2max. They recruited almost 5,000 Norwegians between the ages of 20 and 90, measured their aerobic capacity with treadmill testing and also checked a variety of health parameters, including waist circumference, heart rate and exercise habits.

They then determined that those parameters could, if plugged into an algorithm, provide a very close approximation of someone’s VO2max.

But while fitness age may give you bragging rights about your youthful vigor, the real question is whether it is a meaningful measurement in terms of longevity. Will having a younger fitness age add years to your life? Does an advanced fitness age mean you will die sooner?

The original Norwegian data did not show any direct correlation between fitness age and a longer life.

But in a new study, which was published in June in Medicine & Science in Sports & Exercise, the scientists turned to a large trove of data about more than 55,000 Norwegian adults who had completed extensive health questionnaires beginning in the 1980s. The scientists used the volunteers’ answers to estimate each person’s VO2max and fitness age.

Then they checked death records.

It turned out that people whose calculated VO2max was 85 percent or more below the average for their age — meaning that their fitness age was significantly above their chronological years — had an 82 percent higher risk of dying prematurely than those whose fitness age was the same as or more youthful than their actual age. According to the study’s authors, the results suggest that fitness age may predict a person’s risk of early death better than some traditional risk factors like being overweight, having high cholesterol levels or blood pressure, and smoking.

Of perhaps even greater immediate interest, the scientists used the data from this new study to refine and expand an online calculator for determining fitness age. An updated version went live this month. it asks only a few simple questions, including your age, gender, waist size and exercise routine, before providing you with your current fitness age. (I discovered my own fitness age is 15 years younger than my chronological age — a good number but still not as low as I could wish.)

Thankfully, fitness age can be altered, said Ulrik Wisloff, professor at the K.G. Jebsen Center for Exercise in Medicine at The Norwegian University of Science and Technology, who led the study. His advice if your fitness age exceeds your chronological years or is not as low as you would like? “Just exercise.”

Dr. Wisloff and his colleagues offer free exercise suggestions on their website. But he said almost any type and amount of exercise should help to increase your VO2max and lower your fitness age, potentially increasing your lifespan.

In upcoming studies, he added, he and his colleagues will directly compare how well fitness age stacks up against other, more established measures of mortality risk, like the Framingham Risk Calculator (which does not include exercise habits among its variables). They also hope to expand their studies to include more types of participants, since adult Norwegians may not be representative of all of the world’s population.

But even in advance of this additional data, there is no harm in learning and lowering your fitness age, Dr. Wisloff advised. “There is a huge benefit,” he said, “larger than any known medical treatment, in improving your fitness level to what is expected for your age group or, even better, to above it.”

 

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