is your google broken? wrote:
There are at least EIGHT newer, better, more statistically researched formulas than the ancient 220 formula
How the hell can you be an author of anything giving advice and not know this or not take 10 seconds to find out?
Do you even know it's physically impossible to increase max HR? It's wired into your genetics.
Here you lazy sob, now go learn why max HR doesn't even matter and it's your LT1 and LT2 HR thresholds that count.
https://goodcalculators.com/heart-rate-calculator/
???
Wow. You might want to switch to decaf! Of course, I know that the formula can be way off. Of course, I know you can't increase max HR and that LTHR is what really matters.
The purpose of my post was to see how far 220-age might be off for some Letsrunners, since it is still widely cited as a way to determine Max HR.
Since you brought it up, the book has an entire chapter on better ways to use a HRM than the 220-age formula. Here's an excerpt.
...the formula 220 minus age. At best, this only gives a ballpark number for maximum heart rate. For some runners, it’s way off. For example, at age 50, my maximum heart rate was 190. The formula 220 minus age would’ve given me a maximum heart rate of 170. That’s an error of 20 bpm—far too much to provide any meaningful training zones. Interestingly, at age 70 my max heart rate is 186, a whopping 36 bpm error if I went by the 220 minus age formula!
I explain some better ways to determine Max HR and then add that Max HR isn't really what runners need to know.
The most important number you need to know in using a heart rate monitor is not your MHR. That number is only used to calculate training zones, which in themselves are merely approximations and can vary widely depending on your fitness level. The most important number is your lactate threshold heart rate (LTHR)—the maximum heart rate you can maintain without moving into the anaerobic zone.
Anyway, it looks like the widest error so far is the 70-year-old with a 52 beat difference!