[URL]http://www.bbc.co.uk/news/health-18724114[/URL]
[QUOTE][B]US experts have developed what they say are the most biologically-accurate robotic legs yet.[/B]
Writing in the Journal of Neural Engineering, they said the work could help understanding of how babies learn to walk - and spinal-injury treatment.
They created a version of the message system that generates the rhythmic muscle signals that control walking.
A UK expert said the work was exciting because the robot mimics control and not just movement.
The team, from the University of Arizona, were able to replicate the central pattern generator (CPG) - a nerve cell (neuronal) network in the lumbar
region of the spinal cord that generates rhythmic muscle signals.
The CPG produces, and then controls, these signals by gathering information from different parts of the body involved in walking, responding to the
environment.
This is what allows people to walk without thinking about it.
The simplest form of a CPG is called a half-centre, which consists of just two neurons that fire signals alternatively, producing a rhythm, as well as
sensors that deliver information, such as when a leg meets a surface, back to the half-centre.
[B]
'New approach'
[/B]
The University of Arizona team suggests babies start off with this simplistic set-up - and then over time develop a more complex
walking pattern.
They say this could explain why babies put onto a treadmill have been seen to take steps - even before they have learnt to walk.
Writing in the journal, the team says: "This robot represents a complete physical, or 'neurorobotic' model of the system, demonstrating the usefulness
of this type of robotics research for investigating the neuropsychological processes underlying walking in humans and animals".
Dr Theresa Klein, who worked on the study, said: "Interestingly, we were able to produce a walking gait, without balance, which mimicked human
walking with only a simple half-centre controlling the hips and a set of reflex responses controlling the lower limb.
"This underlying network may also form the core of the CPG and may explain how people with spinal cord injuries can regain walking ability if properly
stimulated in the months after the injury."
Matt Thornton, gait analysis laboratory manager at the UK's Royal National Orthopaedic Hospital, said the work was "an interesting development".
He added: "Previous robotic models have mimicked human movement: this one goes further and mimics the underlying human control mechanisms
driving that movement.
"It may offer a new approach to investigate and understand the link between nervous system control problems and walking pathologies."
Mr Thornton said existing systems for analysing how people walk, so-called gait analysis performed by the RNOH and others, accurately measure hip,
knee, and ankle joint movements in 3D while patients walk on a treadmill. Patients react differently, depending on their condition.
He added: "At present this type of analysis provides us with detailed information about the joints, bones and muscles.
"The robotic model may go one step further in linking these problems to the nervous system, which actually controls the movement.
"The implications for increased understanding of, for example, patients with spinal cord injury are very exciting."
[/QUOTE]
I asked for this
[QUOTE=JgcxCub;36646925]I asked for this[/QUOTE]
I didn't
I wonder if they'll be able to support a person's body weight so people with broken spines and stuff could be able to walk again.
Oh well actually a quick read of the first sentence basically confirms that
[QUOTE=KillerTele;36646937]I didn't[/QUOTE]Too damn bad, because I did, and I have been, and I will continue too until I get them.
One step closer to robot dinosaur love partners
So when can I augment my prothetic legs
Ever closer marching towards the boundary between handicap and upgrade...
Video??
huff post had the youtube link
[media]http://www.youtube.com/watch?v=MnD7LqisBhM&feature=player_embedded[/media]
buns of steel on this one.
[QUOTE=Ithon;36652028]huff post had the youtube link
[media]http://www.youtube.com/watch?v=MnD7LqisBhM&feature=player_embedded[/media]
buns of steel on this one.[/QUOTE]
Still looks a bit shaky on the movement.
But aesthetically they look like they jumped right out of science fiction, which is awesome.
But can it master stairs?
I am willing to sell my kidney for this.
This is awesome, but I what I don't understand about modern prosthetics is that is seems like we're trying to reinvent the wheel. If we could make artificial muscles - that would be fucking awesome!
I thought trying to create realistic legs was going backwards since human legs aren't as efficient as they could be, or am I thinking of purely autonomous robots?
Can't wait for new developments with nervous system implementation, blade elbows here I come!
Now we just need this.
[IMG]http://cdn2-b.examiner.com/sites/default/files/styles/image_content_width/hash/65/2b/652b7e0e0deb8e42d6148e2ce52dc4e1.jpg[/IMG]
[QUOTE=ZombieDawgs;36652766]I thought trying to create realistic legs was going backwards since human legs aren't as efficient as they could be, or am I thinking of purely autonomous robots?[/QUOTE]
Realistic legs so it wouldn't be weird. Either way, who cares about efficiency when you have motors attached to it that could kick with the power of a hand grenade?
[QUOTE=ZombieDawgs;36652766]I thought trying to create realistic legs was going backwards since human legs aren't as efficient as they could be, or am I thinking of purely autonomous robots?[/QUOTE]
Aren't chicken style legs more efficient?
[QUOTE=froztshock;36652055]
But aesthetically they look like they jumped right out of science fiction, which is awesome.[/QUOTE]
The sound it makes sounds like sci-fi horror.
[QUOTE=Mattk50;36667843][media]http://www.youtube.com/watch?v=8dmR8G6ZLKc[/media][/QUOTE]
Oh man, if the PETMAN robot gets to shine, It needs some awesome music to back it up. [media]http://www.youtube.com/watch?v=QRbvNL1PHKg[/media]
I wish I could strut like PETMAN, he has all the swag.
We just need to give the legs an immense amount of strength and then we can jump over tall objects. That would be great.
[QUOTE=Mr. Someguy;36652141]But can it master stairs?[/QUOTE]
[media][URL]http://www.youtube.com/watch?v=aqCmX5dMYHg[/URL][/media]
This can
I knew Darpa would be here sooner or later.
One day we will have prosthetic body parts.....then prosthetic weapons
I love Darpa and BD
[QUOTE=One Ear Ninja;36671111][media][URL]http://www.youtube.com/watch?v=aqCmX5dMYHg[/URL][/media]
This can[/QUOTE]
Isn't that an old version of PETMAN?
Idea explained:
[video=youtube;ZEcgkZVSwU4]http://www.youtube.com/watch?v=ZEcgkZVSwU4[/video]
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