Earlier quoted context omitted.
Hey friend, you have no reason to apologize. That idea comes from a former endurance athlete turned fitness blogger named Mark Sisson. It’s quite a famous article amongst competitive long distance athletes, mostly because it ignores how we actually train. Mark Sisson’s entire idea is based off of the idea that long distance athletes train at what’s called tempo pace. Tempo pace is about 80-85% of maximum heart rate.…
Wow, I didn’t know there was so much backstory to this one. Thanks!
Good luck!!!