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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

    286. Why Passive Heat May Improve Performance, A Batman Study, Influencers, JFK 50 Mile, and Cool Persistence Hunting Science!

    286. Why Passive Heat May Improve Performance, A Batman Study, Influencers, JFK 50 Mile, and Cool Persistence Hunting Science!

    November 25, 2025
    1h 29m

    We got way too invested in dog food models before this amazing episode! The main topic was a new study on passive heat training (like the hot tub or sauna) that acts as a missing link between theory and real-world proof.

    The study found that 5 weeks of hot tub training increases hemoglobin mass and VO2 max, which coincides with improved running economy. WOW! We break it all down.

    And this one was full of incredible topics! Topics: a date night game that should have stayed in date night, Hans Troyer and Jade Belzberg’s wins at the JFK 50 Mile, hard hill strides to break through neuromuscular lulls, questions on heat training, unexpected events and prosocial behavior (including a study involving Batman), a 47-year study on athletic aging, persistence hunting science (and how that relates to human responses to heat), influencers, traveling with gels, stacking training plans, pre-wedding advice, and lots more!

    If there’s one takeaway from the science in this episode, it’s this: BATMAN. It will make sense soon.

    We love you all! Huzzah!

    -David and Megan

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    More from Some Work, All Play

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    289. Threshold Training Explained, How To Run Strides, VO2 and Longevity, and The Best Story We Have Ever Told!

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    288. New Study on Kilian Jornet, The Incredible Story of US Skimo, Shoe Review Rant, VO2 Max, and “Hot Girl Sweating”

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