That tension becomes especially clear with heart rate zone training, a popular five-tier system that endurance athletes use ...

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 ...

Aerobic exercise like jogging, biking, swimming, or hiking is a fundamental way to maintain cardiovascular and overall health. The intensity of aerobic exercise is important to determine how much time ...

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 ...

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, ...

Evidence in the latest version of the Oura app for Android suggests heart rate zones support is coming soon. Oura would have six different zones. This is a feature we usually see on smartwatches and ...