Its all to do with fast twitch / slow twitch muscle fibres. East africans notably somali, kenyan, ethiopian and ugandans have a larger percentage of slow twitch compared to fast twitch. Like west african and carribeans have more fast twitch e.g. Usain bolt. The white race has in past been economically better as they enslaved people from romans right upto the slave trade. Nothing to do with genetics e.g. Slavers said that they had larger brains which is false. Whites are better at some sports than other races and other races are better than others. However in my opinion it is only seen at elite levels . BTW how is it racist that people take advantage of the genes given to them. Is it sexist that mo farah is beter than paula radcliffe at running. Your logic does not work troll.