"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Hear me out: it’s time to get serious about your Zone 2 cardio. ICYDK, Zone 2 cardio refers to a type of ...

Peloton had a series of Bike classes designed around heart rate zone training. Christine D’Ercole would tell you what zone ...

MARTIN: Did you get a workout in this weekend? How'd it go? MARTÍNEZ: I got two. One was an easy one, and the second one was I put myself through the ringer. MARTIN: (Laughter) Excruciating. OK.

For years, runners have used heart rate-based training to maximize their running potential. This method includes five “zones” at which your heart is beating at a percentage of its maximum capacity. In ...

A half marathon is just a 5km warm-up, a 10k run, and a 5k recovery run, right? Yes, it’s that easy—especially when you tap into Zone 2 training. With 6 full marathons and over 20 half marathons under ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images A half marathon is just a 5km warm-up, a 10k run, and a 5k recovery run, ...