[dannypapes]

Thanks for this, Scott. Sorry to eat up your time with an relatively obscure line of questioning. I don’t disagree with anything you said, and think that you described the marathon metabolism picture excellently. This is a little academic and doesn’t really affect a training plan or philosophy.

I’m a rower by trade and my framing of endurance and intensity is naturally going to be different from those who coach and study efforts like the marathon, despite both being solidly categorized as endurance sports. I’m not sure how many marathoners finish with lactate above 15, but I have seen that result rowing quite a few times so I think I was viewing 4mmol as relatively low intensity and not seeing that full metabolic picture. Thanks again.