What should I look into if I want to develop prosthetic limbs? I want to look into making prosthetic arms and legs in case I ever lose one of mine (unlikely). In all seriousness, I'm just interested in the topic. It seems that most prosthetics are aiming to establish a connection between the brain and the device. What I'd like to do is first make a prosthetic that can function solely mechanically. I don't mean something like hook-arm prosthetics, I mean something that could function as close as possible to an actual arm or leg.

I know that for the prosthetic described above I'll need to study ME and Anatomy, but what about for something that aims to connect the brain and prosthetic? I obviously won't be able to contribute anything to the topic of the latter at the moment, but it would be interesting to study the topics involved for later application.