Culture, here, as in most situations, follows biology. People create their culture, not the mad, looney, Socialist view that culture determines human type.
Get hold of an old Grey's Anatomy. I think that the PC crowd got them to take out the relevant text, some years ago. But back before all reasoned discussion of race became taboo in the centers of "Education," the different Negro heel structure was openly discussed. The Negro domination of jumping related sports is no accident. It is a cruel deception to try to explain away their clear superiority in that respect.
A more interesting contrast is that between the bulk of American Negroes--of West African origin--and those now competing athletically in the West from an East African--basically Negro/Hamitic crossed--in track and field events. The American Negroes--and their cousins from other lands--dominate the short distance events, and the jumping or hurdling events. The East African Negroes now totally dominate the distance events. The explanation is obvious. Survival in the Eastern grasslands, has depended for thousands of years on being able to run great distances. They have bred a race of distance runners. If it was culturally related--that is correctable within given biology by environmental incentives--there would be some exceptions to the rule, given both types are now competing worldwide in amateur sport.
The point is not to put anyone down. We have some great White distance runners, also. Those great White distance runners used to dominate the distance events, until the East Africans entered the picture. With all of the cultural manipulation, those great White distance runners still dominate American Negro runners in the distance events. The change is the new kids on the block--the East Africans--dominate both. It is only because of the sick, Socialist egalitarian compulsions, that so dominate academia today, that anyone has a problem with this.
I have no patience with it. It not only denies each of us our unique characteristics--good or bad;--it hurts those that the rationalizers claim to be helping. It is the cruelest possible deception, and leads to unconscionable demagoguery, by those who know how to exploit delusional thinking. (See The Rape Of Tolerance.)
William Flax