Here's the article...
http://well.blogs.nytimes.com/2014/10/15/whats-your-fitness-age/
And here's the researchers quiz to determine your fitness age and VO2 max...
Here's the article...
http://well.blogs.nytimes.com/2014/10/15/whats-your-fitness-age/
And here's the researchers quiz to determine your fitness age and VO2 max...
There is no such thing as "cardiovascular endurance."