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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

    318. Our Surprising Take on Carb Loading, Why Even 10 Minutes Counts, Exogenous Lactate Supplementation, and Cross Training Science!

    318. Our Surprising Take on Carb Loading, Why Even 10 Minutes Counts, Exogenous Lactate Supplementation, and Cross Training Science!

    July 7, 2026
    1h 35m

    We campaigned for the Nobel Prize in bodily functions before this great episode! A main topic was a new review study on cross training that found no difference between cross training and running interventions FOR RUNNING PERFORMANCE. That’s wild, and we use the result to zoom out to describe why we think most athletes should be doing some cross training.

    We also talked about a pair of studies on carb loading, and how the science debates are still uncertain. Even we are unsure as the biggest carb proponents in the world!

    And this one was full of great topics! Other topics: Megan’s breakthrough in side-short pees, arm cooling at the Tour de France, the strange world of lactate supplementation, multi-omic responses to training, building bone density, phobias, warm-ups, long runs, satisfaction meals, and science writing. 

    May your lives be like David’s legs: mostly smooth, with enough stubble to make it interesting.

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    More from Some Work, All Play

    321. Why Hydration Unlocks Endurance, A Creatine Experiment, Tour de France Takeaways, and Athletic Identity Crisis!

    321. Why Hydration Unlocks Endurance, A Creatine Experiment, Tour de France Takeaways, and Athletic Identity Crisis!
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    320. Why POWER Makes Champions, The Key Downhill Cue, Overnight Drug Testing at Tour de France, What We’re Trying Now, and Adult Potty Training!

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    July 21, 2026

    319. New Fueling Lessons from The Tour de France, Uphill Treadmill Threshold Theory, Prototype Shoe Ranting, The Hardrock 100, and Coaching Questions!

    319. New Fueling Lessons from The Tour de France, Uphill Treadmill Threshold Theory, Prototype Shoe Ranting, The Hardrock 100, and Coaching Questions!
    July 14, 2026