home
RSS
Babies, rats share walking ancestry
November 17th, 2011
04:15 PM ET

Babies, rats share walking ancestry

Children typically start walking independently when they are about 1 year old. But scientists say that even healthy newborns have the capacity to start stepping and have a pattern of neural activity similar to that of other animals.

Research published in the journal Science suggests that baby humans, rats, cats, macaque and guinea fowl all share similar neural mechanisms for locomotion. Human adults, on the other hand, have a distinct pattern of signals, which is derived from the basics seen in babies.

"We have a common history ... a common ancestral network, which originated locomotion in the first animals, the first vertebrates," said study co-author Francesco Lacquaniti, scientist at the University of Rome Tor Vergata in Italy.

"Mother nature did not discard what it had. It does not scrap hardware," he added. "Indeed, the adult locomotion of adults is unique. But it seems to derives from common ancestry, as for the other animals."

Researchers looked at healthy babies between 2 and 7 days old. They used an electromyograph to monitor the electrical activity of the babies' muscles. Then, a pediatrician lifted the child and lowered him or her on the table. As soon as the baby's feet touched the table, he or she would start stepping.

Motor neurons, which send signals to muscles, have the basic commands ready in a newborn baby. But only half the circuitry for walking is ready at birth, Lacquaniti said. In fact, the stepping reflex disappears a few weeks after birth. It then reappears as intentional walking at about 10 months, the time it takes for the nervous system to mature and develop the signals missing at birth.

Lacquaniti and colleagues also looked at toddlers, older children and adults and saw how the patterns of the infants get modified and adapted as a child ages. In adult walking, the pulses of activity are shorter than in babies, which is useful for the older folks because less energy is spent.

"This is why babies start walking at 1 year of age, but they wobble," Lacquaniti said. "It takes several more years to then fine-tune and develop adult-like commands, which are much briefer."

Researchers wanted to see how this process of the development of locomotion compares to that of other animals. They looked at rats, cats, macaque and guinea fowl and found similar patterns of neural activity as in newborn human babies.

A 2-year-old human child is smarter than an adult monkey, but the two have comparable locomotive abilities, Lacquaniti said. Separate research has shown that the bigger the animal's brain, the longer the time after fertilization required to develop independent locomotion.

This does not mean humans walk better than other animals. In fact, there are significant costs associated with moving with two legs instead of four: for instance, greater instability and back pain because we have to sustain the weight of our bodies.

There are clinical implications to all this. Understanding the neural mechanisms of walking can help with developing rehabilitation tools for people who are paralyzed and cannot walk.

"If one knows the exact shape of the neural commands, one hopes to use similar commands in prosthetic limbs, retrain the paralyzed patient to relearn to walk, so to speak," Lacquaniti said.


soundoff (558 Responses)
  1. harbor freight near me

    Hello, I believe your web site may be having web browser compatibility problems. When I look at your web site in Safari, it looks fine but when opening in I.E., it has some overlapping issues. I just wanted to give you a quick heads up! Apart from that, great website!

    http://www.google.ps/url?q=http://wholesalenearme.com

    June 4, 2021 at 09:55 | Report abuse | Reply
  2. Sprinter Repair Orange County

    Oh my goodness! Impressive article dude! Thank you, However I am going through problems with your RSS. I donít know why I can't join it. Is there anybody else getting identical RSS problems? Anybody who knows the solution can you kindly respond? Thanx!!

    http://www.johndeeretradition.com/__media__/js/netsoltrademark.php?d=www.fleetvehiclerepairshop.com/

    June 4, 2021 at 10:08 | Report abuse | Reply
  3. Repair Mercedes-Benz Sprinter 2500 Automatic Transmission

    http://leanbuild.org/__media__/js/netsoltrademark.php?d=sprintervanrepair.com

    June 4, 2021 at 11:39 | Report abuse | Reply
  4. toilet repair near me

    Iím impressed, I have to admit. Rarely do I come across a blog thatís both equally educative and interesting, and let me tell you, you have hit the nail on the head. The issue is an issue that too few folks are speaking intelligently about. I am very happy that I found this during my hunt for something relating to this.

    http://buddsblog.com/__media__/js/netsoltrademark.php?d=ocrv.guru

    June 4, 2021 at 15:15 | Report abuse | Reply
  5. roof repairs orange county ca

    https://knitty.com/banner.php?id=587&url=http://ocrvexperts.com/rv-repair-shop-pasadena-california

    June 4, 2021 at 21:47 | Report abuse | Reply
  6. hotels near me

    Way cool! Some extremely valid points! I appreciate you writing this write-up plus the rest of the website is extremely good.

    http://ohioputinbay.net/__media__/js/netsoltrademark.php?d=quotenearme.com/

    June 4, 2021 at 21:50 | Report abuse | Reply
  7. Rv Mercedes Sprinter Service Center Near Me

    http://www.cibins.biz/__media__/js/netsoltrademark.php?d=sprinterrepairnearme.com/

    June 4, 2021 at 22:27 | Report abuse | Reply
  8. Mercedes Sprinter 3.0 Intake Runner Repair

    https://urm.org/n/november-splash/?redirect_to=http://fleetservicesorangecounty.com

    June 4, 2021 at 22:31 | Report abuse | Reply
  9. Keystone Sprinter Tank Repair Leaking

    http://www.carmaxcheats.net/__media__/js/netsoltrademark.php?d=ocrv.biz/

    June 4, 2021 at 23:09 | Report abuse | Reply
  10. Dodge Sprinter Repair Service

    https://www.coloringcrew.com/iphone-ipad/?url=https://www.sprintervanrepair.com/

    June 5, 2021 at 13:53 | Report abuse | Reply
  11. remodeling near me

    https://cdn.embedded.com/common/jumplink.php?target=http://ocrv.art/rv-repair-shop-malibu-california

    June 5, 2021 at 14:36 | Report abuse | Reply
  12. five guys near me

    http://www.herna.net/cgi/redir.cgi?bulknearme.com

    June 5, 2021 at 15:45 | Report abuse | Reply
  13. Sprinter Van Repair Fountain Valley

    There is definately a lot to learn about this topic. I like all the points you've made.

    http://farkhonda.af/share?url=http://fleetservicerepairshop.com/ugryum_reka_2021

    June 5, 2021 at 18:39 | Report abuse | Reply
  14. Service B Mercedes Sprinter

    https://www.etunsw.asn.au/Redirect.aspx?destination=http://ocrv.tv/

    June 6, 2021 at 03:23 | Report abuse | Reply
  15. Vanlife Repair Costs For Mercedes Sprinter

    http://www.mmarine.com/__media__/js/netsoltrademark.php?d=sprintervanrepair.com/

    June 6, 2021 at 15:06 | Report abuse | Reply
  16. RV And Camper Repair Near Me

    You've made some good points there. I checked on the internet for more info about the issue and found most people will go along with your views on this website.

    http://sns.emtg.jp/gospellers/l?url=http://ocrv.rocks/rv-repair-shop-adelanto-california

    June 6, 2021 at 15:48 | Report abuse | Reply
  17. warehouse jobs near me

    http://7ba.info/out.php?url=https://bulknearme.com/

    June 7, 2021 at 00:13 | Report abuse | Reply
  18. Conversion Van Repair Near Me

    After I initially commented I seem to have clicked the -Notify me when new comments are added- checkbox and now whenever a comment is added I receive 4 emails with the exact same comment. There has to be an easy method you can remove me from that service? Appreciate it!

    http://beksportsnet.net/__media__/js/netsoltrademark.php?d=boxtruckrepairshop.com

    June 7, 2021 at 10:14 | Report abuse | Reply
  19. Sprinter Repair Shops

    http://links.members.thrivent.com/ctt?m=17286294&r=MjU3NzIwNjQ5MTAzS0&b=0&j=MTg4MDAxMzYzMgS2&k=Link54-5&kx=1&kt=1&kd=http://ocrvcenter.net/rv-repair-shop-reseda-california

    June 8, 2021 at 03:50 | Report abuse | Reply
  20. camper repair service near me

    https://cqrcengage.com/nma/app/thru?communicationId=582&edrId=452751&url=https://ocrv.life/rv-ac-repair-near-me

    June 8, 2021 at 07:45 | Report abuse | Reply
  21. RV Kitchen Orange County

    Howdy, I believe your website could be having browser compatibility issues. Whenever I look at your website in Safari, it looks fine but when opening in Internet Explorer, it's got some overlapping issues. I merely wanted to provide you with a quick heads up! Other than that, fantastic website!

    http://www.astro.wisc.edu/?URL=http://www.bongdaplut.net/plus/profile.php?id=151912

    June 8, 2021 at 09:13 | Report abuse | Reply
  22. rv tire installation near me

    Iím impressed, I have to admit. Rarely do I encounter a blog thatís equally educative and engaging, and let me tell you, you have hit the nail on the head. The problem is something too few folks are speaking intelligently about. I am very happy I found this in my hunt for something concerning this.

    http://www.astro.wisc.edu/?URL=https://hadabusuko.com/2018/10/02/足の裏にイボができました/

    June 8, 2021 at 09:29 | Report abuse | Reply
  23. dashboard repair shop near me

    I used to be able to find good info from your content.

    http://www.freedback.com/thank_you.php?u=https://ocrvcenter.co/rv-fiberglass-repair-near-me

    June 9, 2021 at 07:28 | Report abuse | Reply
  24. HERSHEYHIWAY

    Wonderful blog! I found it while browsing on Yahoo News.
    Do you have any tips on how to get listed in Yahoo News?
    I've been trying for a while but I never seem to get there!
    Cheers

    June 9, 2021 at 09:19 | Report abuse | Reply
  25. RV Paint Shop Riverside

    An outstanding share! I have just forwarded this onto a coworker who has been conducting a little research on this. And he actually ordered me lunch because I stumbled upon it for him... lol. So allow me to reword this.... Thanks for the meal!! But yeah, thanks for spending time to discuss this issue here on your website.

    http://historyhub.history.gov/external-link.jspa?url=http://shivajieducation.com/actor-paresh-rawal-is-the-new-president-of-nsd/

    June 9, 2021 at 10:06 | Report abuse | Reply
  26. Digital Marketing Consultant Near Me

    That is a very good tip especially to those new to the blogosphere. Short but very accurate infoÖ Appreciate your sharing this one. A must read post!

    https://www.mydoterra.com/Application/index.cfm?EnrollerID=458046&Theme=DefaultTheme&Returnurl=lifebusinessfitness.com/&LNG=en_dot&iact=1

    June 9, 2021 at 13:19 | Report abuse | Reply
  27. Catina Hagadone

    Pretty! This has been a really wonderful post. Thanks for supplying this information.

    http://marcok29e9.webbuzzfeed.com/5163766/great-importance-of-appointed-date-powerful-day-in-restructuring

    June 9, 2021 at 16:17 | Report abuse | Reply
  28. Stacee Hollberg

    Your style is very unique compared to other folks I've read stuff from. I appreciate you for posting when you have the opportunity, Guess I will just bookmark this blog.

    June 9, 2021 at 18:51 | Report abuse | Reply
  29. Daine Jividen

    You've made some good points there. I checked on the internet to find out more about the issue and found most individuals will go along with your views on this web site.

    http://www.bshare.cn/share?url=https://kameroni69l7.boyblogguide.com/4238071/the-fact-about-van-repair-that-no-one-is-suggesting

    June 9, 2021 at 19:02 | Report abuse | Reply
  30. Gene Palin

    http://www.bshare.cn/share?url=https://reidn41k1.ampblogs.com/The-smart-Trick-of-Craft-Store-That-Nobody-is-Discussing-36211725

    June 9, 2021 at 19:02 | Report abuse | Reply
  31. Content Marketing Agencies

    Greetings! Very useful advice within this post! It's the little changes which will make the greatest changes. Thanks for sharing!

    http://barryrosenzweig.com/__media__/js/netsoltrademark.php?d=www.internetmarketingwashington.com

    June 9, 2021 at 22:51 | Report abuse | Reply
  32. Daren Gattas

    That is a good tip especially to those new to the blogosphere. Simple but very precise informationÖ Thanks for sharing this one. A must read article!

    June 10, 2021 at 05:36 | Report abuse | Reply
  33. Tobi Walbrecht

    Your style is unique in comparison to other folks I've read stuff from. I appreciate you for posting when you've got the opportunity, Guess I'll just book mark this site.

    June 10, 2021 at 06:00 | Report abuse | Reply
  34. Denisse Degrate

    http://help.dedecms.com/plus/player/index.php?url=https://erickf07x6.popup-blog.com/4060984/the-best-side-of-rv-body-shop

    June 10, 2021 at 06:00 | Report abuse | Reply
  35. rv repair service near me

    Spot on with this write-up, I really feel this website needs far more attention. Iíll probably be back again to read through more, thanks for the information!

    http://sc.sie.gov.hk/TuniS/www.troy5i1e8.activoblog.com/3490732/the-2-minute-rule-for-rv-repair-near-me

    June 10, 2021 at 06:30 | Report abuse | Reply
  36. Candida Zeleny

    http://edgari81w2.theobloggers.com/5644979/examine-this-report-on-best-roofing-company-near-me

    June 10, 2021 at 07:10 | Report abuse | Reply
  37. Santos Erickson

    http://fernandoq41i0.frewwebs.com/4835178/top-latest-five-yard-signs-near-me-urban-news

    June 10, 2021 at 14:33 | Report abuse | Reply
  38. rv repair shop

    http://directory.hawaiitribune-herald.com/__media__/js/netsoltrademark.php?d=dominick2a5w4.theisblog.com/3494220/top-rv-repair-near-me-secrets

    June 10, 2021 at 15:48 | Report abuse | Reply
  39. Corie Koslan

    Hi, I do believe this is a great web site. I stumbledupon it 😉 I will return yet again since I bookmarked it. Money and freedom is the best way to change, may you be rich and continue to help others.

    June 10, 2021 at 16:13 | Report abuse | Reply
  40. Ebonie Neidert

    Way cool! Some extremely valid points! I appreciate you writing this article and the rest of the website is also very good.

    https://creativecommons.org/choose/results-one?field_attribute_to_url=https://mariot26l9.aboutyoublog.com/4917914/action-coaches-things-to-know-before-you-buy

    June 10, 2021 at 16:53 | Report abuse | Reply
  41. Tomi Dagraca

    https://ditu.google.cn/url?q=http://franciscov49l7.blue-blogs.com/5624390/the-best-side-of-eye-doctor

    June 10, 2021 at 16:53 | Report abuse | Reply
  42. Chiquita Gilman

    http://paxtonl30f9.theideasblog.com/4685975/the-basic-principles-of-garden-services

    June 10, 2021 at 21:56 | Report abuse | Reply
  43. rv repair shops

    bookmarked!!, I love your blog!

    http://images.google.vg/url?q=http://dreamcolorsphotography.com/dsc_1095

    June 11, 2021 at 01:13 | Report abuse | Reply
  44. Hayley Wisnewski

    The next time I read a blog, I hope that it doesn't fail me as much as this particular one. I mean, I know it was my choice to read through, but I really thought you would have something interesting to talk about. All I hear is a bunch of moaning about something you can fix if you weren't too busy searching for attention.

    http://www.shinobi.jp/etc/goto.html?http://elliots53m2.ssnblog.com/4364848/value-of-appointed-day-efficient-date-in-restructuring

    June 11, 2021 at 02:53 | Report abuse | Reply
  45. Stewart Garreh

    I absolutely love your blog.. Pleasant colors & theme. Did you create this web site yourself? Please reply back as Iím looking to create my own personal blog and would like to learn where you got this from or what the theme is named. Many thanks!

    June 11, 2021 at 03:47 | Report abuse | Reply
  46. Aida Harnish

    Very nice article. I certainly love this site. Keep writing!

    http://andres03i6.blogthisbiz.com/5434943/indicators-on-semi-truck-repair-shop-you-should-know

    June 11, 2021 at 05:19 | Report abuse | Reply
  47. rv repair

    Way cool! Some extremely valid points! I appreciate you penning this write-up plus the rest of the website is also really good.

    https://metalib.haifa.ac.il/pds?func=sso&calling_system=metalib&url=https://griffin7l6f0.tokka-blog.com/3500263/top-latest-five-rv-repairs-near-me-urban-news

    June 11, 2021 at 10:25 | Report abuse | Reply
  48. Ora Kercado

    https://landenx25b3.blogunteer.com/4079304/the-smart-trick-of-rv-body-shop-that-no-one-is-discussing

    June 11, 2021 at 12:36 | Report abuse | Reply
  49. rv orange county ca

    Having read this I thought it was extremely enlightening. I appreciate you taking the time and energy to put this short article together. I once again find myself personally spending a lot of time both reading and posting comments. But so what, it was still worth it!

    http://www.allanjohnson.com/__media__/js/netsoltrademark.php?d=ocrv.store

    June 11, 2021 at 19:10 | Report abuse | Reply
  50. RV Supplies Orange County

    Aw, this was an incredibly good post. Taking the time and actual effort to create a very good articleÖ but what can I sayÖ I hesitate a whole lot and don't manage to get anything done.

    http://salinc.ru/redirect.php?url=http://ocrv.art

    June 12, 2021 at 01:23 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10 11

Leave a Reply to Nearby RV Repair


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.

Archive
November 2011
M T W T F S S
 123456
78910111213
14151617181920
21222324252627
282930  
  • An error has occurred, which probably means the feed is down. Try again later.