This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. Zone 2 training is a type of cardio exercise where you use your heart rate as a guide to help you find the right intensity for your ...

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.

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, ...

If you're a lifelong powerlifter or bodybuilder, there's a good chance you're more concerned about growing your glutes, carving your core, or building your biceps than boosting your VO2 max. But for ...

The cardio world has split into two passionate camps that argue with the intensity of people debating pineapple on pizza. On one side, you have the HIIT devotees who swear by short, brutal workouts ...

Zone 2 is good for long sustained efforts. It's usually OK to do zone 2 in place of a rest day. Zone 3 helps you adapt to harder work than zone 3. It burns more fat but incurs a little bit more ...

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 ...