
Episode 204: Extremes in physiology- how they can help you perform better today: An interview with Dr. Brent Ruby
Get every episode summarized
Each time Flex Diet Podcast publishes, we email you a written briefing from the transcript — the topics, who appeared, and any specific claims, with the ad reads skipped.
Email me new episodesFree for 3 shows. No card needed.
About this episode
- [9:15] Dr. Ruby's background and research work
- [13:19] Lab work vs. fieldwork
- [17:07] Ultra-endurance hydration and fuel
- [26:38 The gut as rate-limiter
- [31:45] Limits with using doubly-labeled water
- [40:21] Slowing muscle glycogen use
- [50:56] Recovery and environment temperature
- [53:58] Lactate pet peeves
- [59:37] Dr. Ruby's thoughts on cold water immersion and saunas
- [1:05:06] Research with firefighters
Connect with Dr. Ruby
About Dr. Ruby:
Dr. Ruby serves as Director of the Montana Center for Work Physiology and Exercise Metabolism (Montana WPEM), a designated, Regents-approved research center on the University campus.
Since his time at Montana, but especially since he started the center, his research interests have included nutritional strategies during ultra-endurance work/competition, muscle metabolism during and after exercise, the use of stable isotope tracers for the measure of water turnover and energy expenditure, and issues surrounding heat stress during arduous work.
Referenced link:
Get the Daily Fitness Insider newsletter (free): https://www.miketnelson.com/newsletter
Get every episode summarized
Each time Flex Diet Podcast publishes, we email you a written briefing from the transcript — the topics, who appeared, and any specific claims, with the ad reads skipped.
Email me new episodesFree for 3 shows. No card needed.
Hosts & guests
No transcript yet
This episode has not been transcribed. Request it and it moves to the front of the queue.
More episodes
More from Flex Diet Podcast

Is Zone 2 Overrated? HIIT, VO2 Max & Metabolic Flexibility with Dr. Martin Gibal...
Flex Diet Podcast

Episode 404: Whole-Body MRI, CT Scans, and What Imaging Can Tell You — Matthew P...
Flex Diet Podcast

AI Disclosure, Deepfakes & the Death of Expertise — Dean Guedo & Jeb Stuart John...
Flex Diet Podcast

Building a Fitness Empire: Business Lessons, Zone 2 & Recovery Trends with Don S...
Flex Diet Podcast