Inside Out Health

Running Expert Stack: Sprinting, Endurance, and Longevity for Real-World Athletes

2026-03-27

In this episode, Tara curates expert insights from top running experts Zach Bitter, Brad Kearns, and Cynthia Monteleone on low-carb ultra-endurance, why chronic cardio backfires, and how sprinting can better support strength, longevity, and injury prevention.

RESOURCES:

Learn more about Zach and watch the full episode here: https://www.taragarrison.com/blog/zachbitter Learn more about Brad and watch the full episode here: https://www.taragarrison.com/blog/bradkearns4 Learn more about Cynthia and watch the full episode here: https://www.taragarrison.com/blog/cynthiamonteleone Instagram: @zachbitter @bradkearns1 @fastover40 Get 10% off Peluva minimalist shoe with coupon code COACHTARA here: http://peluva.com/coachtara

CHAPTERS:

00:00 – Expert Stack intro: sprinting vs endurance running
01:18 – Sponsor: Peluva barefoot shoe ad
03:04 – Interview begins: Tara and Zach on ultra distance fears
03:56 – Managing injuries, cross-training, and smart rest
05:18 – Low-carb for 14 years and ultra success
07:00 – Weekly mileage, 0–200 mile weeks, diminishing returns
09:59 – Common mistakes in marathon and ultra training
11:59 – Pacing, race-day execution, and realistic goals
13:03 – Hydration, sweat testing, and electrolyte strategy
14:53 – World-record fueling: carbs per hour and fat oxidation
29:16 – Brad Kearns on chronic cardio and real sprinting
30:55 – Why most "easy runs" should actually be walking
48:40 – Cynthia on endurance damage and overuse injuries
50:29 – Why she quit marathons and moved to sprinting
58:10 – How to start sprinting safely without getting hurt
01:08:41 – Sample sprint workouts, rest periods, and progressions
01:10:00 – Final sprint protocol tips, encouragement, and sign-off
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339

Latest episode

2026-07-17

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Inside Out Health is a top 1% global podcast exploring transformation across the full spectrum of human health—body, brain, behavior, identity, and consciousness—while recognizing that true health is shaped not only from within, but by the environment and world around us.

Hosted by Tara Garrison, the show features conversations with physicians, performance experts, and thought leaders across health, human optimization, and regenerative and integrative approaches. Each episode connects physiology, psychology, and deeper work to explore what actually drives lasting change—from the inside out.