You may already know your VO2 max is a strong predictor of how fast you are on the bike. But if you’re fuzzy on the details, including what the term actually means, why it matters, and how you can ...

Running to the best of your ability can feel like a numbers game. To hit new PBs, you’re probably under the impression that you should keep tabs on all kinds of ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Running at the best of your ability is somewhat of a numbers game. To hit new PRs, you’ll want to keep ...