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Science Of Ultra

by Shawn Bearden

For endurance athletes who want to do more than improve race performance. How you sleep, think, eat, and move all play a role in helping you Become Your Ultra Best!

From the show's RSS feed, refreshed Apr 10, 2026. Source feed.

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Episodes

  1. SOUP Out

    Thank you, thank you, thank you...on we go!

  2. Break

    SOUP is taking a break for the summer, and will be back in September 2021.

  3. Hillary Allen

    Hillary Allen, aka Hillygoat, is one of the top ultra- and sky-runners in the world. We talk about her views of life and running, what's important, and how to stay competitive while embracing whatever life brings. Her near-death accident during the 2017 Tromsø Skyrace, and her recovery are...

  4. Training Intensity Distribution

    Let's answer the question: How much time should I spend training at different intensities? And, let's bust the polarized training myth in the process.

  5. Kenefick & Cheuvront

    Rebroadcast part 2 of 2 - Two of the living legends of performance hydration bring everything you could want to know about hydration for endurance athletes. This episode is all about application of knowledge in the context of ultras.

  6. Sam Cheuvront, PhD & Robert Kenefick, PhD

    Rebroadcast part 1 of 2 - Sam Cheuvront, PhD & Robert Kenefick, PhD, two of the living legends of performance hydration, bring everything you could want to know about hydration for endurance athletes starting with the basics in this episode.

  7. Herman Pontzer PhD - Burn

    Major advances in our understanding of human metabolism have been made in recent years, and they've been pioneered by Herman Pontzer, PhD. He, and his colleagues, are making discoveries in human metabolism and energy balance that will reshape our approach to human health for many years to come....

  8. Run With Ease (rebroadcast)

    [Rebroadcast] Our goal is never to get good at suffering. Our goal is to suffer less under the same conditions, not to make running easier but to run with greater ease.

  9. Keith Baar, PhD

    Dr. Baar rejoins us on the show. He was previously on for episode 58. Today we illuminate the central role of connective tissue and associated proteins in transmitting force from muscle, extend that understanding to explain how muscle functions in running (hint: it's not at all like most people...

  10. Kathryn Ackerman, MD, MPH

    Kathryn Ackerman, MD, MPH is a sports medicine physician, Associate Professor of medicine at Harvard Medical School, medical director of the Female Athlete Program at Boston Children's Hospital, Associate Director of the sports endocrine research lab at Massachusetts General Hospital, and a team...

  11. Hiking

    Hiking! I'm joined by Ian Sharman for a deep dive into training for hiking in ultras.

  12. How much?

    How much running and how much overall exercise training should you be doing to prepare yourself for ultra-marathons or other major endurance adventures? Show page: https://scienceofultra.com/podcasts/140

  13. This is the most useful pace

    If you only have one training pace, this should be it. https://scienceofultra.com/podcasts/139

  14. Kelly McGonigal, PhD

    Kelly McGonigal, PhD understands the power of mindset and movement better than anyone. Show page: https://scienceofultra.com/podcasts/138

  15. Amy Bender, PhD

    A primer on the why and how of sleep for endurance athletes with Amy Bender, PhD from the Centre for Sleep. Show page: https://scienceofultra.com/podcasts/137

  16. Mileage Matters Most

    Mileage is the most important factor in your training, after consistency, no matter your goals. Show page: https://scienceofultra.com/podcasts/136

  17. Shaping Hard Sessions

    Two questions answered today. Should you put intervals at the beginning or at the end of the workout? Should progression runs be done by effort or pace?

  18. Herman Pontzer, PhD

    Herman Pontzer, PhD is an evolutionary anthropologist at Duke University interested in how the human body evolved and how our species' past has shaped our health and physiology today. He studies the ecology, lifestyle, diet and evolutionary history of humans and apes to better understand…

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  19. Andrew Skurka & Joe McConaughy

    Andrew Skurka & Joe McConaughy join me to talk about training and psychology for ultra distance events. Show page: https://scienceofultra.com/podcasts/133

  20. Stop Failing, Learn To Succeed

    Let's talk about failure, success, and learning.

  21. Iñigo Mujika, PhD On Strength

    Iñigo is back on the show, following up on his recent appearance in episode 127. In the previous episode, we talked about tapering. In this episode, talk about strength training from every angle, and we dive into two specific examples of training tweaks that made big improvements for athletes he...

  22. Trent Stellingwerff, PhD

    Trent Stellingwerff has been in the trenches of nutritional support and body composition in supporting athletes of all abilities for many years. Today, we talk through critical new insights that can apply to your training. Episode page: https://scienceofultra.com/podcasts/130

  23. Dan Moore, PhD

    Dan Moore, PhD, brings us the current science on protein requirements for endurance athletes along with very practical advice for putting it into action for you. Episode page: https://scienceofultra.com/podcasts/129

  24. Alyssa Amos Clark

    Alyssa Amos Clark is an extraordinary athlete. We start this interview after she completed 66 marathons in 66 days, on her way to many more. We finish discussing her journey, including her battles with COVID-19. Episode page: https://scienceofultra.com/podcasts/128 Instagram: @theory_in_motion...

  25. Iñigo Mujika, PhD On Tapering

    Iñigo Mujika (PhD) has coached numerous Olympians, national teams, and is recognized as one of the top triathlon (swimming, cycling, and running) coaches in the world. He's published over 100 peer-reviewed articles, books, and book chapters. He literally wrote the book on tapering, which is the...

  26. David Bishop, PhD

    My guest today is David Bishop, PhD from Victoria University in Australia. He's a world leading expert on the health and performance outcomes of exercise prescription with a particular emphasis on mitochondrial adaptations. Recently, he's been studying the impact of twice-per-day training and...

  27. Jose Areta, PhD

    Jose Areta studies energy availability, training, and performance. We talk about his recent case study of an amenorrhoeic athlete who restored their menstrual cycle while training and competing at a high level, his comprehensive review of glycogen utilization, and how an athlete can loose weight...

  28. Mark Burnley, PhD

    My guest today is Mark Burnley, PhD from the University of Kent, in the UK. His principle interests concern endurance physiology, specifically the oxygen uptake and metabolic responses to exercise and the power-duration relationship. For example, he was part of the group that first validated the...

  29. Patrick Wilson, PhD

    Patrick Wilson (PhD) is an Associate Professor at Old Dominion University and author of a newly published book, The Athlete's Gut. He was a guest in episode 16. Today, we update our understanding of gut physiology from when he was first on the show but spend most of our time on lots of new and...

  30. Andy Jones, PhD

    Andy Jones is one of the world's leading experts in human performance physiology, especially in the realm of endurance. Nike recognized this when they brought him onto the Breaking 2 project. He's most famous in many circles for his pioneering work using nitrates to boost performance. Yes, this…

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  31. Father-Son World Record Marathon

    Dr. Julien Louis takes us through the training, pacing, and physiology of the father-son duo who set a new world record for combined time in the marathon. In 2019, Tommy (59 yrs) and Eoin Hughes (34 yrs) ran the Frankfurt Marathon in times of 2:31:30 and 2:27:52, respectively. Their combined...

  32. Is Your Training Bent?

    Mapping your training and then seeing what events (races, or adventures) fit on your map, without bending it, keeps the focus on what's most important…you. This method tells you which events you could run because it's the method that fits events to your body rather than bending your body to fit...

  33. Finish Low With Drs. Morton And Louis

    This is a deep dive into carbohydrate periodization with Drs. James Morton and Julien Louis where we explain the science behind our recommendation of FUEL FOR THE WORK REQUIRED (e.g., enough but not much more) and GLYCOGEN THRESHOLD (i.e., train to low levels). We also explore issues of sex and...

  34. Dr. Ron Maughan

    Dr. Ron Maughan is arguably the most recognized name in sports nutrition. I was fortunate to meet with him in St Andrews, Scotland for our discussion. In this interview we talk about his early days in sports, running with the likes of Don Ritchie among many others, and review some of the current...

  35. Run With Ease

    Our goal is never to get good at suffering. Our goal is to suffer less under the same conditions, not to make running easier but to run with greater ease.

  36. Genes And Placebos

    Today's conversation is with John Kiely and Craig Pickering. John was on episode 52; we talked the lack of evidence supporting periodized training programs. We begin with the current state of evidence in genetic testing for athletic potential and planning training. We move on to more useful ways…

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  37. Cramping

    Cramping isn't well understood. But here's what we know right now.

  38. Are rest days needed?

    Rest days are a staple of most running programs. But are they needed. In this episode we reframe our view of exercise, rest, and recovery time to help you make clearer decisions about when you exercise.

  39. CC18 Roundtable

    A T/F from each of our four coaches posed to the group to wrap up 2019. Does level running speed translate to uphill abilities, is training for a 200 miler fundamentally different from training for shorter distances, should you run through tweaks or injuries, is more running volume going to help...

  40. CC17 Is an off-season right for you?

    Our four coaches discuss taking time off. If you're looking for a coach, or just have questions, you can reach David Roche at SWAPrunning.com Ian Sharman at sharmanultra.com Krissy Moehl at krissymoehl.com Shawn Bearden at ScienceOfUltra.com ([email protected])

  41. Travel

    A massive how and what on traveling, including cameo appearances from numerous elite ultra runners.

  42. Ditch the gels?

    I sat down with Spring co-founder Rafal Nazarewicz, PhD to talk about using real foods in ultras.

  43. CC16 Are you overtraining?

    Is overtraining common among ultra runners? Are you running too much? Can adherence to the mantra of consistency open a gateway to overtraining?

  44. CC15 Is Specificity Important?

    How much do your training runs need to look like the race or event to maximize your performance? That's the basic question behind the term 'specificity'. Our four coaches address these ideas in today's Coaches' Corner.

  45. The Long Run

    What is the 'long run'; can it be too short; can it be too long? Today we simplify and demystify this enigmatic workout.

  46. Stress...Response

    How valid are the most commonly held beliefs in exercise training that assume a reliable and specific adaptation to a specific workout - do this workout and get that result ? In this episode, I explain why we now view these ideas as too simplistic. We dig into how the basic principles that…

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  47. CC14 Are Tech Metrics Useful?

    Technology gives runners the opportunity to run according to readouts and feedback from devices. To what extent should you use them?

  48. Downhill Running

    In recent episodes we've explored how you can train your mind and body. The third area for training is craft. Everything from pacing, to hydration strategy, to gear choices, to foot care are part of your craft. Today, the part of craft we're going to explore is downhill running. Downhill running…

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  49. CC13 Tapering

    Is there a general formula you can apply to taper properly for an event? Find out how our coaches approach tapering with their athletes.

  50. Interval Fundamentals

    You can train our mind, body, and craft. In recent episodes on training your body, we skimmed the surface of training endurance and economy. If you run a lot of miles, often on race-like terrain and run all out for short bursts a few times per week, you're doing the majority of the work that will...

About this show

For endurance athletes who want to do more than improve race performance. How you sleep, think, eat, and move all play a role in helping you Become Your Ultra Best!

Hosted by

Shawn Bearden

Frequently asked questions

How many episodes does Science Of Ultra have?

Science Of Ultra has 148 episodes on PodParley. The most recent episode was published on October 6, 2021.

What is Science Of Ultra about?

For endurance athletes who want to do more than improve race performance. How you sleep, think, eat, and move all play a role in helping you Become Your Ultra Best!

How often does Science Of Ultra release new episodes?

Science Of Ultra publishes every two weeks, based on its 148 episodes since September 2015.

Who hosts Science Of Ultra?

Science Of Ultra is created and hosted by Shawn Bearden.
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