In today's running culture, people can't stop talking about Zone 2 running. But what about Zone 3?

John Davis is an author, running coach, former collegiate runner, and an expert in human performance with a focus on biomechanics.

He ran at Carleton College before getting a PhD in biomechanics at Indiana University's School of Public Health, focusing on running injuries.

In this episode, we talk about:

• The underutilized value of Zone 3 running

• Why zones aren't as clear as many people make them out to be

• Lactate threshold and steady-state max in running

• High-end aerobic training and its effects on muscle fatigue

• Improving aerobic capabilities with middle intensity training

• Main drivers of fatigue in different intensities

• Training in Zone 3 and how it can predict performance in endurance events

• Balancing physiological principles with practical coaching

Send this to your running group chat so you can unpack the myths and science behind Zone 3 on your next group run!

Links & Resources from the Show:

• Join the book launch list for Marathon Excellence for Everyone

• John's book: Modern Training and Physiology for Middle and Long-Distance Runners

• John's website and newsletter

• John on Instagram

• John on X

• Get the free injury prevention email series.

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