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.

Ever wonder what VO2 Max really means? It’s your body’s ultimate engine metric—the maximum amount of oxygen your muscles can use during all-out effort. Does aging tank your VO2 Max? Yes; unless you ...

VO2 max testing requires a mask to measure oxygen intake and carbon dioxide output to determine your cardiovascular fitness. When you think about how fit you are, you might think about how far you can ...

Not sure whether to lift weights or do cardio for a longer life? A sports medicine doctor explains how to pick the right ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Until recently, VO2 max testing has been inaccessible to most everyday athletes. Unless you had an in ...

When runners talk physiology, two terms tend to dominate the conversation: VO2 max and lactate threshold. Although the two metrics are related, they are not the same – and they shape performance in ...

VO2 max? Mile time? Experts break down the most common health metrics and reveal which ones actually best reflect on your ...

There are numerous paths to living a longer, healthier life, mostly through physical activity, diet and other lifestyle factors. But according to board-certified cardiovascular surgeon Dr. Jeremy ...

Running at the best of your ability is somewhat of a numbers game. To hit new PBs, you’ll want to keep tabs on all kinds of stats, like distance covered, pace per mile (or interval), max heart rate, ...