Anyone have an idea of how much energy is transfered to someone or something when someone punches them or it? I know this can vary a lot, but does anyone have any numbers? I came across one website that said something like the "average force of a focused Sieken (punch)" delivers 700 foot-pounds, whatever a Sieken punch is, I don't know. I came across another website that talked about some people who recorded the energy delivered to a punching bag by their boxing team. I wasn't familier with the units though, I think it was "1,064 pound impulses" from one of their guys.