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.
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.
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.