
314. Carbs and Bone Health, A Reproducibility Crisis in Training Science, Wild Data on Post-Exercise Ketones, and Trail Supershoe Data!
From Some Work, All Play by David Roche and Megan Roche
June 9, 2026 · 1h 34m
About this episode
The episode discusses recent studies on training science, including the effects of carbohydrates on bone health and the impact of post-exercise ketones.
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 Click "Get 40% Off" button for 40% off at The Feed here: thefeed.com/swap Buy Janji's amazing…
People in this episode
Hosts: David Roche, Megan Roche
Topics covered
- carbohydrates
- bone health
- training science
- post-exercise ketones
- trail running
- coaching communication
Keywords
- carbs
- bone health
- training adaptations
- post-exercise ketones
- collagen
- EPO levels
- trail supershoes
- coaching
Sponsors
The Feed, Janji, Wahoo Fitness
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