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 ...

New VO₂ Testing Insights Suggest Popular Fitness Metrics May Be Leading to Ineffective and Counterproductive Workouts ...

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 ...

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 ...

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 ...

Understanding your heart rate is crucial for more than just reaching optimal fitness–it can also help to reduce injury and ...

Few would disagree that cardio, also called aerobic exercise, is good for your health. Of the 10 most common chronic diseases, seven are "favorably influenced by regular physical activity," according ...

Zone 2 is more than just running slow. Two experts explain the nuances behind running's new trend toward low-intensity training.

Plus, the surprising benefits of turning the intensity down a notch.

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, ...

Slow running has been emerging as an unexpected way to run faster over long distances. Easy, conversational-pace runs can ...