Amputees given new bionic legs can walk naturally and at a normal speed in a “miraculous ... control that produces a natural gait where the human nervous system is controlling the movement ...

However, this process severs the normal connection between 'antagonistic' pairs of pushing and pulling muscles in the leg. Instead ... where the human’s nervous system is controlling the ...

He created a pair of feet with toes made of laminated blades that he could jam into tiny rock fissures far too slim to hold a normal human foot. He made the height of the legs adjustable; at 7 feet 5 ...