Spring is in the air and zone 2
This one is for the endurance people. If you’re not interested in mitochondrial development or lactate, keep scrolling.
I shared this video with two people already this week, so it seems a perfect time to share it here again too.
This is the best zone 2 video on the internet. Trust me, I’ve actually watched them all.
Running coach and author Steve Magness explains how Zone 2 isn’t a strict on-off switch—there’s a wide range of effectiveness because multiple systems are working together simultaneously. Your heart rate gives you a glimpse into what’s going with your physiology, but it doesn’t tell the whole story. Zone 2 numbers aren’t set in stone. They’re estimates to help guide your training.
The key takeaway is to log enough easy time and not worry too much about precise zones.
Enjoy.
Justin Miner