Your heart rate zones might be completely wrong. Not only are zones defined differently in different apps, they are also ...

Hardcore endurance athletes have tracked the metric for decades, but it is increasingly touted as a measure of fitness and ...

If you’re short on time, Stoner recommends the three-minute step test as another alternative that offers a score of aerobic ...

Getting in shape is a common goal for the New Year. Before you start an exercise program you may want to have a fitness test ...

Low intensity cardio—sometimes called LISS or “zone 2”—is an underrated form of exercise. It’s finally coming back into ...

Ashley Whelan knew something was wrong when he had pains across his chest, arms and back and his heartrate hit 220bpm ...

And then be sure to replenish your body postrun with protein and more carbs.

If you think of ways to measure your overall health, certain benchmarks likely come to mind. The bloodwork you get done at your annual physical, maybe. Your body mass index. Perhaps how much you ...

Ashley Whelan, who lives in Manchester, says he saw his heart race rocket to 200 bpm during his first Hyrox event and then ...

My experience wearing the Whoop 4.0 alongside Apple, Garmin and Polar watches, plus dozens of heart rate monitors ...