Add Yahoo as a preferred source to see more of our stories on Google. Over the years, people have invented all sorts of methods and ways to test aerobic fitness, from seeing who can perform the most ...

I devote a sizable portion of my life to aerobic exercise. According to Strava, I’ve spent more than 120 hours running this year, or five full days on my feet. Still, I somehow hadn’t heard of Dr.

Over the years, people have invented all sorts of methods and ways to test aerobic fitness, from seeing who can perform the most push-ups to a treadmill test with a medical professional who provides ...