I'm not saying slaves were never bred (here or in all the other societies in the world by the way), but I am not sure that anyone has ever tried to prove that breeding that happened 150 years ago has any physical bearing on populations today.
People would have to study the family tress of a lot of athletes to prove this.
It just strikes me as way too simple and unrealistic
If this were true what I would generally expect would be people's grandparents to be great athletes. Like Jim Brown's father would be better than him. And Jim's kid would be slightly less good. Then the next kid would be slightly less good than that.
Recessive genes, friend. Recessive genes. These traits are carried from one generation to the next. But they are not always expressed.
Just look at the other links I posted. Especially the one about fast-twitch vs. slow-twitch muscles. The genetics cannot be refuted.
Well what about dominant genes?
I have no problem with the idea that certain groups are built different than others, but your links just aren't giving what I asked.
The first two are trying to show that breeding happened (actually the second is an advertisement for a book) and the third shows major debate about why black athletes dominate with the conclusion that it's a complex answer.
I'm not seeing evidence that slave breeding 150 years ago is contributing to athletic success today. Honestly I'm not even seeing evidence of correlation, let alone causation
You say recessive genes, in which case every race that was ever enslaved (all of them) and bred (perhaps all of them, I'm not sure) would also have recessive genes canceling out the effect.
The only example I can think of where a grandson of a former slave was totally dominant was Muhammed Ali, and even then you'd have to demonstrate that his ancestors were bred for things that would equate to boxing success.
As far as I see it ----interesting theory, but no proof, and hardly any evidence. Possibly because nobody has actually done the study, which would probably be painstaking.
The third link is titled "Why black will beat white at the Olympics"
It didn't really explain about why blacks beat whites at the winter Olympics (does that happen?). Is there no muscle twitch there? Is there no endurance and explosiveness there? Are there no blacks that live in cold environments?.....back to the drawing board