For when you need to be in "zone 2" and have no idea what that is.

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 ...

So if you’re 55, you take 220 minus 55, which equals 165 bpm (your maximum zone 5 reading). How heart rate zones change with age Because our maximum heart rate (MHR) changes as we age, our heart rate ...

We have just the formula you need to sort what your heart rate training should look like.

Running in zone 2, by definition, should feel easy. And that’s a good thing, considering zone 2 runs make up the majority of any good training plan. These easy efforts serve as the building blocks for ...