This is always something that amazed me-- why women's gyms have plates the same size as men's 45lb plates, but only 10kg? (22 lbs)?
Co-ed gyms use the men's sized plates.
I remember that scene in the novel and the film... like what I said about "The Stand," sometimes novels may best remain novels... I can't even imagine how they will do "Children of Dune" without it being totally creepy and wrong.