Researchers have invented new biomechanical legs thereby completing the half size of their human counterparts and moving a step closer to the invention of the household robots.

With a fantastic feeling of a big victory in the biochemical world, researchers said that they have developed the biochemical legs with similar slight up-and-down movement alike in human legs with the help of load sensors that have been attached in the feet i. e. a small computer to adjust the motion according to the surface and make the chemical legs perform similar movements.

The skeleton of the robotic legs has been designed similarly with all the three joints in the lower anatomy i. e. the hips, knees and ankles.

"One of the ideas is that we build what I call soft robots, which can be used around human beings", said Mr. Anthony Lewis, who worked on the invention with Theresa Klein, both of the Department of Electrical and Computer Engineering at the University of Arizona.

He added that these soft robots if are pushed from their legs would not be able to resist the action and will fall. The above research came out on Friday in a peer-reviewed publication, the Journal of Neural Engineering.