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SImon's avatar

Hi Chris. Almost everything I see on heart rate zones suggests the percentages you have here, but I've just been updating a calculator on my website that determines optimal zones and my research coincides with my personal experience that the real zones, using the heart rate reserve method, are a bit higher than what's listed here. If you use the "percentage of max HR" approach things are even worse. I also came across some research that suggests fat burning zones are different from zone 2 and also different for men and women.

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Stephen's avatar

Hi i read your blog its interesting, i am runner. My run is based on speed and distance and as you have said injuries exhaustion always occur. I need a training plan that in the long run will make me improve my speed and endurance. I run 80-100km per week. With average pace of 4.46min /km. Advice on a good plan. I do run 6 days a week.

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Chris Panza's avatar

Hey Stephen - I'm not an expert, obviously - but that's a lot of miles a week run really fast, isn't it? I don't know how old you are, but I couldn't run that kind of volume per week at that speed, I'd be injured all the time or just wiped out and miserable and not enjoying my runs. That's why I moved to Zone training - limit speed runs to 20%, and run in Zone 2 for 80%. Why not give it a shot?

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