If you're a lifelong powerlifter or bodybuilder, there's a good chance you're more concerned about growing your glutes, carving your core, or building your biceps than boosting your VO2 max. But for ...

Heart rate zones are a way to describe how hard you're working during a cardio workout, like running or cycling. The faster your heart beats, the harder you're working. So an easy jog might have you ...

We have just the formula you need to sort what your heart rate training should look like.

Steady-state cardio has fitness influencers in a chokehold. But now some are questioning whether it’s actually the smartest ...

When Joe Driscoll toed the line at the U.S. Men's Olympic Marathon Trials in November, he knew that maintaining an even pace would be trickier than usual on the rolling hills of New York City's ...

Does every run send your heart rate soaring? Experts explain why intentionally slowing your pace and sticking to heart rate zones can pay off in the long run.

Lastly, zone 5 is 90 to 100 percent of your heart rate max, so you’ll feel winded, like you’re at your most intense effort. The issue: Many runners (particularly women) report that their fitness ...

Running stats — love them or hate them — as a runner, you will be constantly inundated. Finish a run, and you’ll get every ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. Zone 2 training is a type of cardio exercise where you use your heart rate as a guide to help you find the right intensity for your ...

Plus, the 80/20 rule for optimal results ...

Strava's new Training Zones feature promises to help runners and cyclists better understand their training load across metrics like heart rate, power, and pace. That sounds like useful information, ...

For when you need to be in "zone 2" and have no idea what that is.