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    Some Work, All Play

    Some Work, All Play

    About

    Five to ten topics, sometimes about running, with lots of love and enthusiasm and science. We dig deep into training, races, studies, pop culture, and much more! With Megan Roche, M.D. and David Roche!

    Hosted By

    David Roche and Megan Roche

    314. Carbs and Bone Health, A Reproducibility Crisis in Training Science, Wild Data on Post-Exercise Ketones, and Trail Supershoe Data!

    314. Carbs and Bone Health, A Reproducibility Crisis in Training Science, Wild Data on Post-Exercise Ketones, and Trail Supershoe Data!

    June 9, 2026
    1h 34m

    We removed all the cutlery from our house before this great episode! The main science discussion was on a new study looking at reproducibility of adaptations in individual athletes. The relatively surprising finding is that there was no significant correlation in how the same athlete responds to the same intervention across time. We discuss what that means for training science. The word “holistic” is coming in hot.

    We also talked about a new study on post-exercise ketones, finding a 15% increase in natural EPO levels. Even knowing that, we aren’t recommending ketones to many athletes we coach. What’s going on? The disclaimers will blot out the sun.

    And this one was full of fun topics! Other topics: when good butter knives go bad, Tom Evans doing the coolest downhill training on the treadmill, new trail supershoe data, a study on carb intake and bone health, and how collagen may impact bone health for female athletes. Plus questions on breathing, uphill treadmill miles, breakups, programming workouts, coaching communication, and more.

    We love you all! HUZZAH!

    -David and Megan

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    More from Some Work, All Play

    313. Marathons v. Ultras, Fatigue Resistance Debates, Gene Editing Breakthrough, and Posture Impact on Blood Volume!

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    312. How Blood Volume Impacts Performance and Adapts Fast, The Scary Potential of Lactate Supplementation, The True GOAT, and The Circle Pit!

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    311. The Science Episode! How To Stop Cramps, Fat Oxidation Changes, Missing Link Heat Training, The Difficulty of Physiology Data, and More

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