Japanese writer Ototake embarks on new challenge with robot legs english.kyodonews.net

(Hirotada Ototake)Recently in Tokyo, Ototake took another try at walking with the artificial legs developed by Sony Computer Science Laboratories Inc. Each leg, including the shoe, weighs 5 kilograms.
"After much practice and walking just a short distance I can see that there are many difficulties in using this," Ototake said.
As part of his training, Ototake regularly climbs up and down the emergency staircase in his apartment building on his stumps without using the artificial legs.
He has had to have the sockets for the artificial legs reworked to fit his muscular thighs.
Ken Endo, 41, is the project leader at the Sony laboratory in charge of developing the robot legs.