April 19, 2024 Login  


Unanswered Active Topics Forums Search
Forums > Road > The Coffee Shop
Limit of human endurance interesting article
Last Post 06/07/2019 11:44 AM by Orange Crush. 4 Replies.
Printer Friendly
Sort:
PrevPrev NextNext
You are not authorized to post a reply.
Author Messages
Orange Crush

Posts:4499

--
06/06/2019 05:41 PM
https://www.bbc.com/news/health-48527798
longslowdistance

Posts:2881

--
06/07/2019 10:31 AM
Interesting link, thanks.
Especially that maximum energy output for ultra endurance athletes is limited by how much nutrition the gut can absorb. The gut biome is complicated and poorly understood, but surely is related. Maybe certain gut bugs improve absorption - a new avenue of research. Future Skybots will take pills containing genetically engineered wonder probiotics
longslowdistance

Posts:2881

--
06/07/2019 10:34 AM
In terms of maximum performance (rather than absorption), surely there's an efficiency component as well. Some folks get more watts for the same internal energy consumption due to better mitochondria, biomechanics, and other factors.
Cosmic Kid

Posts:4209

--
06/07/2019 11:25 AM
Posted By Frederick Jones on 06/07/2019 10:31 AM
Interesting link, thanks.
Especially that maximum energy output for ultra endurance athletes is limited by how much nutrition the gut can absorb.


I was kinda surprised by this "revelation"....triathletes have known this for years. Your gut can only absorb ~300 calories / hour during activity, but you are burning ~twice that (exact numbers depend on the individual). If you eat too much, you can't process it and your gut shuts down, which leads to gastro problems.

So for an event like Ironman, it is a question of keeping enough calories going in without running out while simultaneously trying not to ingest too many calories.
Just say "NO!" to WCP!!!!
Orange Crush

Posts:4499

--
06/07/2019 11:44 AM
I don't think that was the point of the article CK. It showed that during individual events like an Ironman or even 3 week events like the Tour you can temporarily go into a nutritional deficit but over longer time periods (weeks to months) the limit is 4000 cals per day give or take for average person. An Ironman is not ultra-endurance, it's those guys and gals running across the Sahara and things like that.

The pregnancy analog is great. Women being close to that long-term nutritional limit when pregnant.
You are not authorized to post a reply.
Forums > Road > The Coffee Shop
Active Forums 4.1
NOT LICENSED FOR PRODUCTION USE
www.activemodules.com

Latest Forum Posts
Flanders (and Roubaix) posted in Professional Racing
Anyone have fun bike projects going? posted in The Coffee Shop
so quiet posted in The Coffee Shop
Hot Stove League posted in Professional Racing
Rohan Dennis charged in death of his wife posted in Professional Racing
compare Cycling icons with icons in other sports posted in Off-Topic
Parc des Princes Veldrome posted in Professional Racing
No articles match criteria.
  Terms and Conditions | Privacy Policy  Copyright 2008-2013 by VeloNation LLC