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Artwork for Endurance Essentials

Endurance Essentials

Gordo Byrn, john hellemans

Endurance Training & High Performance Habits

Platform
Substack
PricingFreemiumPublishesTwice weekly
Issues751SubscribersRead feelthebyrn.substack.com

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#62
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/Sports(Paid)
#58
Substack
/Sports(Free)

Latest Issues

Recent posts by this newsletter. Browse the email archive.

Field Testing Your Run

With Spring arriving in the Northern Hemisphere, it’s time for many of us to shift our training from the treadmill to outside.

23 days ago
10
0

The Transition To Competitive Amateur

In the spring of 2023, I attempted to make the jump from being a Developmental Athlete to training like a Competitive Amateur.

a month ago
14
0

Testing That Matters - Part Two

A triathlete undergoes a maximal cycling test

a month ago
6
0

Testing That Matters - Part One

Recently, I was tagged on a VO2max thread. The athlete received a result that didn’t make sense and wanted help interpreting. Unfortunately, problems with testing data are common. When we ran our lab in Boulder, most third-party tests we re...

a month ago
11
0

Authors

The writers behind this newsletter.

  • Gordo Byrn

    Ultraman Hawaii Champion | Building SuperVet Fitness in my 50s and Sharing Lessons From A Lifetime in Sport & Finance

  • john hellemans

    Dr John Hellemans is a well know sports-medicine doctor, triathlon coach, and author based in Christchurch, New Zealand.

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