The Science Behind Race Day Illness and Nutrition with Dr. Pfaffenbach | Ask a Cycling Coach Podcast 502
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// TOPICS COVERED

(00:00:00) Welcome!

(00:00:09) Discussing Kristian Blummenfelt’s crazy habit of vomiting

(00:05:30) Physiological Mechanisms Behind Gut Distress

(00:13:15) Impact of Heat and Exercise on the Gut

(00:20:19) Potential Causes of Kristian’s Gut Issues

(00:31:59) When to DNF a Race While Sick

(00:34:12) Nutritional Strategies and Challenges

(00:37:42) Hyponatremia and Fluid Balance

(00:52:14) Probiotics and Gut Health

(01:00:18) Practical Advice and Final Thoughts

Dr. Kyle Pfaffenbach from Eastern Oregon University discusses nutrition and causes of gut distress for endurance athletes, exemplified by Kristian Blummenfelt’s recent vomiting episode at IRONMAN World Championships in Kona. Kyle covers factors such as intense exercise, heat, blood flow, changes in bike position, and hydration. Additionally, the episode explores strategies to mitigate gastrointestinal issues, including the use of glutamine and probiotics, highlighting the complexity of individual responses to nutrition and exercise conditions.

// RESOURCES MENTIONED

• Kristian vomiting at Kona: https://www.instagram.com/triathletemag/reel/DBmTiMxSrVd/)

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