Do African-Americans have extra energy in their muscles?

I have not done any research on this topic. This is a straight question. What I DO know is that back when there was slavery, (very bad times), that these awful slave owners would literally “breed” African-American who had the biggest um how do I say “package” bc they truly believed the men with the biggest ones would produce bigger and stronger slaves. True Fact. Do any of you out there believe that this so-called “breeding” led to stronger African-Americans??? From what I’m told and have seen from strippers we know the big package thing is true. I’m not racist or ignorant in any way. But do you think, believe or know if this “breeding” helped their race become so strong and fast?

No.

You don’t say?

And thus we have the birth of jazz - the only true American art form.

The time-period was too short, and the populations too small, for evolution to kick in to that degree.

There is an urban legend that the Napoleonic Wars reduced the average height of the French by some measurable amount, because the tallest men were put in the brigades with the highest casualties. Rebutting this is a trivial exercise in introductory population genetics. (The wars would have had to have killed off 99.99% of the tallest men to result in a permanent measurable difference. Also…lots of soldiers had children before they became battlefield casualties!)

how much time is necessary?

I don’t know. Best I’ve got is a friend who actually knows population genetics; he’s the one who showed me the math to rebut the French height-loss legend.

It’s a popular racist urban legend, but it doesn’t fit the facts. For one thing, many or even most African Americans have some European ancestry (largely due to the accepted practice of raping attractive slave women), which is obviously not conducive to some sort of artificial selection. For another, human beings are not cattle, and even slaves generally were able to have sex with any other people (slaves or not) that they wanted to (and who wanted them – in addition to the aforementioned rape and other coerced sex). Locked gates might pen in sheep or cattle, but not humans who really want to see the ones they love.

and are you sure that is analogous to the southern USA in the 1800’s and 1700’s. The process may have been more focused there…

Absolute bullshit. Unless you can provide a cite for this.

Lots of people “know” stuff that is simply not true. Take this opportunity to educate yourself.

If you’re a guy that isn’t a straight question.

Really? The bolded part sounds like research.

I have never encountered any reports that slaveowners bred for penis size. Anyone heard of this?

Research has repeatedly shown this is not the case.

Not racist, I’ll accept. But you are ignorant. That’s not a bad thing, it’s just a thing. A thing that can be corrected.

No, to both the explicit and implicit content of the question.

Including the previous revolutionary wars, which also lasted some 10 years, about 1.500.000 French were Killed. Out of a population of 25.000.000 .
That is quite considerable.

The tallest men would most often be in the grenadier companies, that would bear the brunt in the attack collumn. You would therefore indeed expect their casualty rate to be higher.
It should however be noted that a large percentage, of those killed, would have died from disease and fatigue, rather than combat.

Why on earth would slave owners choose to breed slaves for big penises? What possible use would well endowed slaves be to the slave owner?

If slave owners wanted to breed slaves who were big and strong, they would do it directly by choosing slaves who were big and strong as breeding stock.

They were size queens?

There are a few websites I could refer you to if you really want an answer to that one.

Besides that the time period is rather short, you forget that it is not just American blacks that perform better at certain sports.
I would rather think that, on the whole, white people do not have as much incentive to train as hard. For a lot of black people sports is simply one of the few ways to escape poverty.

why cant it be both factors? size and motivation?

Could be. The OP, however, posits that there is some superiority because of the breeding of slaves. This factor would be absent for actual Africans.

I’m not sure I follow what you mean? Africa is a big place. People range in all kinds of sizes in Africa, correct?

You’re very ignorant to had even ask this question !