Phil Batterson is a competitive runner, former running coach, and the founder of Critical Oxygen. Phil has a PhD in human bioenergetics and a love for all sorts of endurance sports, from rowing to track and field and ultras. His goal with Critical Oxygen is to teach athletes and coaches how to optimize their physiology to maximize endurance performance.

This episode is important and is a repost of episode 330 from 2023.

Phil breaks down some of the complex physiology behind the three different thresholds to make it more accessible, as well as providing practical ways to apply it in training. Some of our discussion includes:

Phil’s journey into endurance training and exercise science
What physiology defines each of the three thresholds
How runners can determine their own thresholds
The importance of lactate threshold work for race preparation
Common mistakes when using training zones
How to integrate VO2 max work with cross training

Whether you like to geek out on physiology or just want to race faster, you'll learn a lot from my conversation with Phil!

Links & Resources from the Show:

Follow Phil on Instagram
Check out the Critical Oxygen podcast and blog
Let me help you get the most out of your training

Thank you to 2Before!

We are supported by 2Before, a powerful sports supplement made from New Zealand Blackcurrants designed to increase endurance, manage inflammation, support immunity, and promote adaptation. 2Before helps to boost performance by increasing blood flow, making it more efficient for the body to pump oxygenated nutrient-rich blood into the muscles.

Just like beetroot but more effective, blackcurrant berries are vasodilators, helping you get more blood flow to where it's needed.

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Thank you to 2Before for supporting Strength Running!

Thank you LMNT!

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.

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.

Thank you Gut & Green!

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How to Improve the 3 Running Thresholds (Z2, LT, and VO2 Max), with Phil Batterson, PhD

The Strength Running Podcast