DiscoverNutritional Revolution Podcast16,000 Calories Later: The Science & Physiology of Ultra Endurance with Dr. Andrew Creer
16,000 Calories Later: The Science & Physiology of Ultra Endurance with Dr. Andrew Creer

16,000 Calories Later: The Science & Physiology of Ultra Endurance with Dr. Andrew Creer

Update: 2025-10-21
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In episode #157 we talk with researcher Dr. Andrew Creer about:

  • Research on energy expenditure in ultra marathons, as looked at in his recently published research, "Total Energy Expenditure and Intake During a 161-km Mountain Ultramarathon" https://journals.humankinetics.com/view/journals/ijspp/20/6/article-p869.xml
  • Nutritional strategies for optimal performance and recovery
  • Understanding the physiological challenges faced by ultra marathon runners.
  • The critical role of post-race recovery in maintaining athlete health.
  • Future research directions and the evolving science of ultra endurance.

Andrew Creer, PhD is a professor and department chair of Exercise Science & Outdoor Recreation at Utah Valley University. His main research interests involve endurance physiology and applied human performance. He has been involved with a number of field studies investigating ultra-endurance physiology and energy expenditure in a variety of locations, including Utah, Oregon, Arizona, France, and Spain.  Dr. Creer also works closely with several athletic teams at UVU monitoring aspects such as body composition and performance nutrition, and is a performance nutrition consultant for several prominent members of the local running community.

Connect with Dr. Andrew Creer:

Mentioned:

  • Total Energy Expenditure and Intake During a 161-km Mountain Ultramarathon: https://journals.humankinetics.com/view/journals/ijspp/20/6/article-p869.xml
  • The Compelling Link Between Physical Activity and the Body's Defense System, David C, Nieman & Laurel M. Wentz: https://pubmed.ncbi.nlm.nih.gov/31193280/
  • Ultra-endurance Athletes and the Metabolic Ceiling, Andrew Best et. al: https://www.cell.com/current-biology/fulltext/S0960-9822(25)01129-7
  • The Western States 100-Mile Endurance Run: Participation and Performance Trends: https://pmc.ncbi.nlm.nih.gov/articles/PMC2809551/
  • Competition Nutrition Practices of Elite Ultramarathon Runners: https://pubmed.ncbi.nlm.nih.gov/260

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16,000 Calories Later: The Science & Physiology of Ultra Endurance with Dr. Andrew Creer

16,000 Calories Later: The Science & Physiology of Ultra Endurance with Dr. Andrew Creer