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nikcubyesterday at 9:35 PM10 repliesview on HN

Stunning results at the top of the field. Some interesting takeaways on both fuelling and shoes.

Maurten spent months working with Sawe and other runners getting their gut capacity trained so they could absorb and burn 100 carbs per hour[0][1]

> The Maurten research team was embedded with Sawe’s team in Kenya for 32 days across six trips between last and this April. They were training his gut to absorb that load by mimicking race-day protocol in training. The hydrogel technology they have developed over the past 10 years now allows athletes to absorb 90–120 grams of carbs per hour without GI distress.

Second is the shoes. Adidas Adizero weigh 96 grams[2] with new foam tech and new carbon plates

Nike and INEOS spent millions over years to get Kipchoge to a sub-2 in artificial conditions, and now the elite end of the field are knocking that barrier out in race conditions. Unreal.

Running tech and training have been revolutionized in the past few years.

[0] https://marathonhandbook.com/sebastian-sawe-arrives-in-londo...

[1] https://www.instagram.com/p/DXmvAUvkWaq/

[2] https://www.runnersworld.com/uk/gear/shoes/a71129333/sabasti...

edit: correct :s/calories/carbs thanks


Replies

PaulDavisThe1styesterday at 9:40 PM

> could absorb and burn 100 calories per hour

burning a hundred calories an hour is trivial. Most people will burn 100 calories per mile when walking or running, and more if moving as fast as these athletes, and many, many humans can do this for far, far longer than 2 hours.

It's the absorbtion that's the challenge. Maurten is not somehow alone in the particular stuff they've developed - ultra runners are generally shifting up into the 90-120 gram/hr range (or beyond!), using a variety of different companies' products. The gut training protocols for this are widely discussed in the world of running for almost any distance above a half marathon.

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groggoyesterday at 9:40 PM

One gram of carbs is 4 calories., so more like 400 calories per hour.

It was confusing when the running industry switched from calories to grams of carbs, but that's all anyone talks about now.

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tedgghtoday at 12:28 AM

I normally consume 90g of carbs per hour when long distance biking, so do a few other riders I know. No GI issues. I use Skratch some other guys like Precision.

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nradovyesterday at 9:40 PM

The leaders were burning a lot more than 100kcal per hour. I think you mean 100g of carbohydrates per hour.

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addaonyesterday at 9:40 PM

100 g of carbs is 400 calories, not 100.

ekr____yesterday at 9:40 PM

Correction: 100g of carbohydrate/hr. That's approximately 400 calories/hr.

tokaiyesterday at 9:50 PM

Pro cycling has been on the high fueling strategy for a while, with huge results for record times. Its a game changer for endurance sports.

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ChrisArchitectyesterday at 9:48 PM

Adidas all over this one https://news.adidas.com/running/two-adidas-athletes-sabastia...

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