Tracking fitness data is key for assessing your health, designing the right training program for your goals, and gauging your progress throughout your training routine. When it comes to measuring ...

Enthusiasts claim that these long, slow workouts could be the key to longevity and better health. Here’s what the science actually says. By Alex Hutchinson When the podcaster and physician Peter Attia ...

It’s not often that you’ll hear a runner ask you what heart rate zone you're in, or what your beats per minute are as you run. Instead, you're more likely to look at your pace to determine the ...