A study challenges the idea that “more exercise is always better,” revealing how elite cyclists may burn through their daily heartbeats faster. This raises new questions about the fine line between ...

You track your VO2 max and working heart rate, but this underrated biometric may tell you more about your heart and long-term ...

I just hit 20,000 steps!" my husband exclaims as he brags when his fitness tracker exceeds the oft-heard benchmark of 10,000 steps per day. Although I rarely get that many steps, I use my ...

That tension becomes especially clear with heart rate zone training, a popular five-tier system that endurance athletes use to measure effort and fine-tune performance. The well-known formula is ...

‘Women typically have smaller hearts and blood vessels. When a woman exercises, her heart must pump faster and work ...

These days, it may seem like there’s a million different data points that you’re supposed to keep track of—hello, steps, sleep, and recovery scores!—and it’s difficult to know which ones are worth ...

Veteran male athletes who have spent years training at high intensity may be at greater risk of serious heart problems while ...

Fitness trackers and smart watches are widely popular wearable devices that measure several types of health metrics, including step count, calories burned, sleep quality, Vo2 max and heart rate. As a ...