I'm what I call an "on-paper" athlete. I've been running for a decade, I regularly take weightlifting classes, and I finished a marathon. In my mind, I should be ripped, shredded — all the paper ...

Add Yahoo as a preferred source to see more of our stories on Google. VO2 max testing requires a mask to measure oxygen intake and carbon dioxide output to determine your cardiovascular fitness.

Hardcore endurance athletes have tracked the metric for decades, but it is increasingly touted as a measure of fitness and health for the average person.

Increasing your vo2 max can be simple, but that doesn't mean it's easy. It has many names: "maximal oxygen consumption," "maximal oxygen uptake," "peak oxygen uptake," "maximal aerobic capacity." ...

A simple 5-minute power test and a bit of mathematics will spare you a costly trip to a performance lab for specialist VO2 ...

Most of us are curious about how fit we actually are. The gold-standard answer usually comes from a sports lab, where aerobic ...

A tool that can make run/walking even more effective, especially for athletes ready to get faster? The treadmill. Pairing ...

A.V. Hill was a 4:45 miler and already had a Nobel Prize for work in muscle physiology when he and Lupton began studying VO2 max. The experiments involved subjects running around Hill’s back garden in ...

When you think about how fit you are, you might think about how far you can run or how many push-ups you can do. Or maybe you think about health metrics like your resting heart rate or heart rate ...