Many data-driven runners have a grasp on common heart rate metrics, like resting heart rate, maximum heart rate and heart rate zones. But there’s another, often undervalued data point worth keeping ...

A combination of cardio and strength training is crucial for heart health, muscle strength, and healthy aging.

Photo illustration: Graham Bower/Cult of Mac Apple’s VO 2 max metric measures the performance of your heart and lungs when you push yourself to the limit. Up until now, though, it’s only been useful ...

Is soft cardio the missing piece of your workout routine? We spoke to a sports medicine physician and a pro trainer to find out.

One of the useful and somewhat buried health features on Apple Watch is VO2 max. The measurement can be estimated by Apple Watch when recording specific workouts but it isn’t enabled by default and ...