Why Do Jamaicans Run So Fast - The Secrets of Jamaicas Athletic Olympic Success

klientel

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Genetics, flawless training regimens, and they live and breed this track shyt…sprinting is mad popular there. So the level of competition just to make it to the world stage is insane.
 

RadaMillz

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Dedication plus expectation, there are probably thousands of teens on the track field right now in Jamaica training for the next olympics
 

MischievousMonkey

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Another argument notes that many of Kenya's best runners come from the sunny highlands in the Great Rift Valley, which also happens to be the birthplace of homo sapiens. The land there is flat with mild year-round weather, encouraging regular outdoor running. The high elevation -- about 7,000 feet -- could help runners here develop lungs capable of functioning in thinner air. When these runners descend to the relatively low-elevation courses at Boston or Beijing, the thicker atmosphere there would give them, in effect, a sustained oxygen boost. This may help explain why they developed physical traits better suited for running, although it's possible that these features are also due to something called "genetic drift" -- evolution is based on random genetic mutations, after all, so any isolated community will "drift" to certain common traits for no reason other than chance. Still, there are plenty of high places in the world, and neither Swiss nor Nepalese runners have yet made their big debut. And the conventional wisdom among trainers is that, although high altitudes can help develop lung capacity, the best way to do this is by sleeping at high elevation and training at low elevation.

https://www.theatlantic.com/international/archive/2012/04/why-kenyans-make-such-great-runners-a-story-of-genes-and-cultures/256015/
 
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