DiscoverMag: Prehistoric Females Were Strong As Hell. November 29, 2017 by Garret Vreeland in History, Science They found that Neolithic women’s leg bones were about as strong as those of modern rowers, but their arm bones were significantly stronger — about 11-16 percent. Compared to sedentary students, the gap was as high as 30 percent.Seems to point to Crossfit more than yoga, no?