I have been running under the assumption that my max heart rate was still in the 192-195 range but I am beginning to realize that it is probably much lower. The few times I have run an AT effort 170-172 feels exactly like 180-181 used to feel like. I find that trying to push my HR up to the high 170's and low 180'ds is a race-like effort.
Over the first 8 months of the year I missed 50% of the time because of three calf pulls.
I am aging. Wow, what a concept.
My max probably dropped due to de-conditioning, stress and aging. Eventually it catches up to you.
HR training, if done right, bring about a response. Over time you get quicker at specific heart rates. That's how it worked for me back when i first starting doing it in late 1990. My best guess is that my old AT heart rate is no longer valid. I haven't done anything approaching a max test in years but I can make a pretty fair educated guess. The new math says back it off. When my max was just over 200 I used 195 to be on the safe side and it worked. It took roughly 6 months of slow running and monthly AT test runs to see the benefits. So now maybe I am 190 (maybe) so using the new math I will back off my calculated max to 185 for the time being. We'll see if that brings about a training response.
Heart Rate Percentages
% of Max & Heart Rate
I went out for an early afternoon run today. Sunny, cool, almost no wind. Perfect. I ran for 65 minutes at 130-135 HR.