The Science Behind Kenyan Distance Running Speed

Question
Does anybody know why kenyan runners run so fast in long distance and in middle distance as well?

Answer
Hernan,

This is not my area of expertise, but DNA is a major factor in it. I recommend the book, The Sports Gene, by David Epstein. http://www.amazon.com/The-Sports-Gene-Extraordinary-Performance/dp/161723012X

It discusses several things like this including where a lot of the great distance runners come from.

Nick

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