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John Davis holds a PhD in Biomechanics, coaches elite marathoners, and is the author of Modern Training and Physiology for Middle and Long Distance Runners.

His newest book is a masterclass on marathon preparation: Marathon Excellence for Everyone. It includes new research on training theory, elite-level training plans, and guidance for every type of aspiring marathoner.

Today, we discuss physiological resilience: 

• How physiological resilience is like the 4th metric of performance
• How to build this skill safely
• Example workouts for beginner to advanced runners
• The role of "depletion workouts" in physiological resilience
• What actually causes the "marathon fade" at the end of 26.2 miles

Learn more about John's new book on the Marathon Excellence website or follow him on IG here.

You can browse Strength Running's marathon plans here.

After resisting most supplements for the better part of my life, I’m cautiously changing my tune. I’m now a Masters runner and in my personal life, I’m optimizing for longevity. I want to be my healthiest self for as long as possible and I’m excited to partner with Previnex to make that happen.

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A big thanks to LMNT for their support of this episode! They make electrolyte drinks for athletes and low-carb folks with no sugar, artificial ingredients, or colors. They are offering a free gift with your purchase at LMNT. And this does NOT have to be your first purchase. You’ll get a sample pack with every flavor so you can try them all before deciding what you like best.

And BIG news! Their newest flavor is now permanently available : LEMONADE SALT!

LMNT’s products have some of the highest sodium concentrations that you can find. Anybody who runs a lot knows that sodium, as well as other electrolytes like magnesium and potassium, are essential to our performance and how we feel throughout the day.

If you’re not familiar, LMNT is my favorite way to hydrate. They make electrolytes for athletes and low-carb folks with no Sugar, artificial ingredients, or colors. I’m now in the habit of giving away boxes of LMNT at group runs around Denver and Boulder and everyone loves this stuff.

Boost your performance and your recovery with LMNT. They’re the exclusive hydration partner to Team USA Weightlifting and quite a few professional baseball, hockey, and basketball teams are on regular subscriptions. So check out LMNT to get a free sampler pack and get your hydration optimized for the upcoming season.