Minimum / Maximum Heart Rate

And yes, 220-age is bollocks, and my HRmax is pretty much unchanged over 25 years. I think it might be a cautious guide for people starting training with HR without the benefit of decent coaching, it's probably wise to tell 50 year-olds to back off if they hit 170 bpm until they know what they're doing.

As a near 50 year old... I wanted to test the formula, as, thanks to Strava, I seem to have a lower HR than others in my age range on the same rides.

So I took my computer on a short hilly run, since I knew I could get my ticker working hard on this. And sure enough Garmin showed my max HR as 184. My formula max HR for my age is 172, but if I actually pump a higher rate, is that my true max HR? Gotta be, huh?

Looking back, it now looks like I'm a lazy rider! It will take a while get get used to blasting away 10-12 beats faster, but good to know that the ceiling is a little higher.