The Heart of Exercise: Zone Four

In this article, we’ll cover the fourth of the five targeted heart rate zones for Effective Exercise.

This “Athlete Zone” is for people who can reach and sustain an increased heart rate without any problem. So if you have any heart issues at all or if you’ve been inactive for a while, you should keep out of this zone.

This zone utilizes 80-90% of your maximum heart rate. So a 50-year-old female weighing 140 pounds and looking to exercise safely would have an HR max of roughly 171 BPM. So using the abovementioned women as an example, the low end 80% of 171 BPM would be roughly 136 BPM.

This zone is for those looking to get in peak physical condition. It’s not a zone for the purposes of burning off fat calories, but it is a great zone for those seeking the ultimate in physical fitness workouts.

This zone is reached only by exercising hard and fast. It’s referred to as The Athlete zone because it’s a zone trained athletes frequently reach. While in this zone, you will become fitter and faster than ever before as your heart rate increases and you cross over from the aerobic side of training into the anaerobic side of training.

If you want to know more about heart rate training zones :
How to calculate Target Heart Rate?
Zone One
Zone Two
Zone Three
Zone Five