Aquatic prosthesis design for individuals with disabilities

Amputees at the Springfield YMCA and other YMCAs in the greater Springfield area want a prosthesis that would improve their swimming skills and mimic healthy body swimming mechanics. This way they can swim a lot better than they normally do with the prosthesis that they use for swimming now. Design Requirements include that the prosthesis should be able to do a breast stroke and the butterfly because the ones that they have now cannot do it. The task is to design a below the knee prosthesis that solves these swimming problems that amputees might face with their current prosthetic devices.