The Value of Zone 3, Heart Rate vs. Effort, & How Heat Impacts Z2 with Brady Holmer (repost!)

The Strength Running Podcast · Sep 24, 2026 · 1h 13m

Brady Holmer is a physiologist, 2:24 marathoner, and author of the Physiologically Speaking newsletter.

This episode is important because it refutes many myths about Zone 2. It was first published in 2024 at the height of the Z2 craze.

Brady and Jason discuss:

Zone 2 specifics

Why an elevated heart rate isn't always the same

The value of Zone 3 running

How heat impacts your HR

A lot more...

Follow Brady on X here and thank him for coming on the Strength Running Podcast!

Thank you Altra!

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