this post was submitted on 25 Mar 2024
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Damn, that's interesting!
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Those Ethiopian and Kenyan runners live and train at high altitude, when they compete at lower elevations where there's more oxygen, they have a dramatic edge over other runners.
I'd wager we would see the same effect if athletes from Bhutan, Nepal and/or Tibet decided to compete in long-distance running.
This is why the US Olympic Training Center is in Colorado.
Genetically I imagine the Africans have a more advantageous stride than the Asians?
Not to say the biomechanics are equal, but Cheptegei the current 10K record holder is 5’6” / 1.67m. So it’s not like an Usain Bolt situation. And for the marathon, Mo Farah is 5’9”.
I remember hearing during the Olympics them actually talk about how much of a freak Bolt is to be so tall and so fast. Most runners are on the shorter side. For those that watch the NFL you'll know that being tall and fast is what makes people DK Metcalf such a freak of nature when sprinters are actually usually smaller, like Tyreek Hill. It's less about stride length and more about power put into the ground which is easier for shorter legs.
If you watch Bolt run you'll notice he doesn't actually hit his peak until way after the other runners during the 100m. He has said before iirc that he's actually a more natural 200m runner rather than a 100m runner. On the 100 he barely gets to his top speed before the finish. That's what makes his 100m records truly so phenomenal, he's not really built for that race but was still so much faster than everyone else on the track.
It's not out of the realm of possibility that a runner from Nepal being Asian and therefore statistically likely to be shorter than someone born in Africa, could be a record breaking runner. Of course this is all about sprinting but over longer distances the longer lankier bodies prevail, better momentum.
tldr: short legs go zoom, long legs go long.
Interesting....not what I expected
Africa is more diverse than the rest of the world put together.
Which particular Africans are you referring to?
As OP and not the poster you are asking, I'll answer this one:
Ethiopians and particularly Sudanese (then zooming in even more specifically - the Nuba tribe) are known for being among the tallest people in the continent today.
It was right around this area where the Kush people of the Nile Valley Civilization flourished in antiquity. The Kush are described by accounts of the era as being taller than any other Mediterranean groups.
Relative genetic isolation since then results in that they were tall then, and they are tall now. Some of this genetic heritage must have also spread down to Kenya in the interim.
I remember reading a study actually showing Tibetans had some of the highest genetic height potential of all the phenotype groups surveyed, they just never reach it because they don't consume enough.
I'll admit there almost certainly has to be some correlation with genetics and running capability given the above data, but the genetics of an entire continent are way too varied to make generalizations like "Asians run worse".
Thanks for adding context.