Comment by DebtDeflation

I have some books translated from Russian that that I acquired back in my powerlifting days and that showed studies the Russians did on Olympic weightlifters. The children (who had been lifting heavy since a very young age) had bone mineral densities far higher than average untrained adults. The adult Olympic weight lifters had bone mineral densities that were completely off the scale, as the book put it "in polar bear territory". Granted, these study participants were people explosively lifting hundreds of pounds from floor to overhead in the blink of an eye, not your average gymbro, but still.