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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

    303. The Weird Science of Carb Mouth Rinses, VO2 Max Limits, Fueling for Performance, Cross Training, and Cramp Prevention!

    303. The Weird Science of Carb Mouth Rinses, VO2 Max Limits, Fueling for Performance, Cross Training, and Cramp Prevention!

    March 24, 2026
    1h 31m

    We put on our spacesuits for this great episode! The main topic was a study finding that just putting a dissolvable carb strip on the tongue could improve performance by 3% in a short time trial. What?! How can carb strips and mouth rinses improve performance? We discuss the weird implications of cephalic-phase responses. 

    And this one was full of amazing topics! Other topics: our first movie theater trip in 3.5 years, a discussion of low energy availability and fueling for performance, Keely Hodgkinson discussing gaining power before her recent world championship win, why cross training is the hottest training topic, Courtney Dauwalter doing GOAT things, a strange study on hot underwater biking, plus a Q+A on VO2 max limitations, the many meanings of “talent,” preventing cramps, fueling and menstrual cycle disturbances, inflammation and adaptation, and a hypothetical coaching academy. 

    May your saunas and tubs be even hotter than our astronaut costumes. We love you all! HUZZAH!

    -David and Megan

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    301. What To Do Pre-Race, How Metabolism Works For Athletes, Training Races, Colon Health for Runners, and a Great US Half Marathon Update!

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    300. A Shocking Disgrace at the US Half Marathon Champs and What Needs To Happen Next, Learning From Elite Cycling Training, and Optimism Science!

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