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

Ask a Cycling Coach Podcast - Presented by TrainerRoad

TrainerRoad

Sports

4.9 • 4.5K Ratings

🗓️ 21 November 2024

⏱️ 62 minutes

🔗️ Recording | iTunes | RSS

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Summary

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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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Transcript

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0:00.0	Welcome to the Ask a Cycling Coach podcast presented by trainer Road. I'm coach Jonathan Lee. And here we have Dr. Kyle Foff. Kyle Fofenbach, forgive me, Kyle from Eastern Oregon University. We're excited to have you here. We're going to talk about nutrition, particularly what could cause endurance athletes to get an upset stomach. We got a question. It was submitted from, let me just make sure I can see it from here,
0:21.6	Byron.
0:23.3	Byron says,
0:26.1	Hey, coaches, after watching Kona this weekend,
0:27.5	so this is a handful of weeks ago,
0:30.3	I'm curious what your thoughts would be on nutrition,
0:32.7	especially on what was going on with Blue's gut.
0:32.8	Now,
0:34.5	they're talking about Christian Blumenfeld.
0:37.7	I'm going to put up a clip on screen so that you can see right now.
0:44.2	If you're eating, don't watch it. It says, uh, Byron says, aside from a gastrointestinal bug, is there anything an athlete could get wrong that would cause so much vomiting?
0:48.8	We're going to like approach this from a 360 degree perspective, entertaining all
0:52.9	possibilities. And we have Kyle with us here because he's going to kind of go into like what actually
0:57.8	could be causing this inside the body and what an athlete could be doing.
1:01.1	But if you haven't seen this and you're not watching the podcast, you're just listening to
1:05.5	the podcast.
1:06.6	This was the Ironman World Championships on the big island of Hawaii.
1:10.7	They swim 2.4 miles.
1:12.0	They bike 112, and they run a marathon thereafter.
1:15.9	It's famous for its very varying but almost always hot conditions.
1:21.1	Extremely humid when you're close to the water.
1:23.4	On a lot of the bike leg, it's extremely dry, usually very windy.
	...

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