When it comes to exercising, your heart rate is the gold-standard metric to uncover how hard you're pushing. It tells you whether you're working aerobically or anaerobically, how your body is reacting ...

From watches to chest straps, a heart rate monitor can optimize your workouts. Polar, Garmin, and Fitbit top our list. See what else we’re wearing to run, swim, cycle, and more. Heart rate monitors ...

A heart rate monitor may be the key to unlocking your fitness goals. That’s because heart rate is a reliable indicator of your exercise input—it reflects the effort applied to every workout. Keeping ...

As an avid runner, I’m no stranger to heart rate monitors and extra sensors. I’m all about getting every last little piece of data to figure out if I actually nailed my workout or if I pushed just a ...

Training smart means mixing up the intensity of your runs – not just going out all-guns blazing on every effort. But distance, time and pace are all blunt tools for measuring effort, which is where ...