An able-bodied subject tests the Gen2 robotic knee-and-ankle prosthesis through the use of a knee-bypass adapter. The robotic leg has highly efficient actuators for quiet operation and energy regeneration like an electric car. This work was supported by the National Institutes of Health, the National Science Foundation, and the Burroughs Wellcome Fund.
![](https://s2.save4k.ru/pic/c3sp2yP_xCY/maxresdefault.jpg)