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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

    283. Fatigue Resistance in Marathons, High Carb in Road Racing, Science Debate on Ketones, Doubles, and Uphill Treadmill Introduction!

    283. Fatigue Resistance in Marathons, High Carb in Road Racing, Science Debate on Ketones, Doubles, and Uphill Treadmill Introduction!

    November 4, 2025
    1h 29m

    We stretched the ketones-as-robot-butt metaphor to its limits for this awesome episode! The main topic was a new study measuring fatigue resistance in marathons. Athletes completed lab tests prior to a marathon, with final results correlating with different attributes. Unfortunately, the athletes weren’t fueling during the protocol. What is this, 2005?! 

    We broaden it out for conclusions that apply to everyone. Fatigue resistance without carbs is a stupid human trick, and there’s no need to play that game.

    And this one was full of our favorite topics! Other topics: Megan’s return to the site of her heart issues 4 years ago, David’s scooter debut on the path to going pro, SiS Beta Recovery, the weird science of CurraNZ, how the New York City marathon was influenced by high carb approaches, high carb taking over the roads, the UCI’s strange declaration on ketones, mileage ranges in training plans, how training philosophy changes for outliers, dealing with unintentional underfueling, introducing the uphill treadmill, Megan’s field hockey and track history, and doubles.

    We love you all! Huzzah!

    -Megan and David

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    More from Some Work, All Play

    284. Game-Changing Study on High Carb, Iron Levels and Energy Intake, New World Records, Race Week Nutrition, and Offseasons!

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    November 11, 2025

    282. Javelina 100! Golden Ticket Back to Western States...With A Twist Ending

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    281. The Facts on Lead in Protein Powder, 22 Hot Topics in Endurance Sports, Weird Science of MRI Findings, and Increasing Carbs!

    281. The Facts on Lead in Protein Powder, 22 Hot Topics in Endurance Sports, Weird Science of MRI Findings, and Increasing Carbs!
    October 21, 2025