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 (482 Responses)
  1. Social Media Marketing Associations

    Pretty! This has been an extremely wonderful post. Thank you for providing this info.

    http://jooris.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 11, 2021 at 03:51 | Report abuse | Reply
  2. Content Marketing Experts

    Hi there! I just wish to give you a big thumbs up for your great information you have here on this post. I will be returning to your website for more soon.

    http://www.maskansazancz.ir/LinkClick.aspx?link=http://www.affordableranking.com&mid=1283

    May 11, 2021 at 04:55 | Report abuse | Reply
  3. Content Marketing Idea

    https://cloudecrypt.info/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 11, 2021 at 06:00 | Report abuse | Reply
  4. Digital Marketing Quote

    Pretty! This was an incredibly wonderful article. Many thanks for providing this information.

    http://www.psmas.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 11, 2021 at 08:54 | Report abuse | Reply
  5. Google Marketing Companies

    https://www.electrumcos.co/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 11, 2021 at 13:44 | Report abuse | Reply
  6. Digital Marketing Agency

    I need to to thank you for this great read!! I absolutely loved every little bit of it. I have you book-marked to look at new things you post…

    http://www.fab-things.com/__media__/js/netsoltrademark.php?d=internetmarketingmontana.com

    May 11, 2021 at 16:33 | Report abuse | Reply
  7. rv blinds repair

    Next time I read a blog, Hopefully it won't fail me as much as this one. After all, Yes, it was my choice to read through, however I really thought you would have something useful to talk about. All I hear is a bunch of complaining about something that you could fix if you were not too busy searching for attention.

    https://s5.histats.com/stats/r.php?869637&100&47794&urlr=&ocrv.world/toy-hauler-trailer-collision-repair-shop-near-me

    May 11, 2021 at 20:44 | Report abuse | Reply
  8. Mercedes Sprinter Repair

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

    https://www.adultwork.com/SetReferrerCookie.asp?SelUserID=602668&ReferringURL=&TargetURL=https://sprintervanrepairshop.com/ram-luxury-van-repair-shop-near-me

    May 11, 2021 at 21:30 | Report abuse | Reply
  9. movies stores near me

    I enjoy reading an article that will make men and women think. Also, many thanks for allowing for me to comment!

    https://53938.measurementapi.com/serve?action=click&publisher_id=53938&site_id=92394&sub_campaign=g5e_com&url=https://ocrv.us/rv-repair-shop-seal-beach-california

    May 12, 2021 at 00:06 | Report abuse | Reply
  10. RV Storage Riverside

    Greetings! Very helpful advice within this post! It's the little changes which will make the largest changes. Thanks a lot for sharing!

    http://www.justmanbrushco.us/__media__/js/netsoltrademark.php?d=yelp.com/biz/ocrv-center-anaheim-2

    May 12, 2021 at 05:08 | Report abuse | Reply
  11. solar repair near me

    I want to to thank you for this excellent read!! I certainly enjoyed every little bit of it. I have you book-marked to check out new things you post…

    http://blackfive.net/__media__/js/netsoltrademark.php?d=youtube.com/watch?v=BGFSGaM5kgY

    May 12, 2021 at 05:51 | Report abuse | Reply
  12. roof repairs orange county ca

    I couldn’t refrain from commenting. Perfectly written!

    http://my.migrationpolicy.org/salsa/track.jsp?url=https://ocrv.rocks/rv-repair-shop-canoga-park-california

    May 12, 2021 at 09:36 | Report abuse | Reply
  13. rv remodel supplies

    Hello there! This blog post could not be written any better! Reading through this post reminds me of my previous roommate! He always kept talking about this. I most certainly will forward this information to him. Pretty sure he'll have a good read. I appreciate you for sharing!

    http://sitebox.mailus.ru/requestform.php?success=1&referrer=https://ocrvcenter.info/citystar-collision-repair-shop-near-me

    May 12, 2021 at 10:07 | Report abuse | Reply
  14. RV Fiberglass Near Me

    https://nationalshowgardens.com/__media__/js/netsoltrademark.php?d=

    May 12, 2021 at 11:52 | Report abuse | Reply
  15. best auto body shop in orange county

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

    http://delawarecpf.com/__media__/js/netsoltrademark.php?d=ocrv.us/rv-dashboard-repair-near-me

    May 12, 2021 at 11:58 | Report abuse | Reply
  16. esurance near me

    You made some really good points there. I looked on the internet for more information about the issue and found most people will go along with your views on this site.

    https://www.tanken.ne.jp/cate/fhhanpu/rl_out.cgi?id=ox8448&url=https://ocrv.xyz/rv-repair-shop-yorba-linda-california

    May 12, 2021 at 12:38 | Report abuse | Reply
  17. camera shop california

    https://www.worldcruising.com/extern.aspx?ctype=1&adid=89&pagid=0&src=https://ocrvcenter.net/motorhome-generator-repair-near-me

    May 12, 2021 at 12:43 | Report abuse | Reply
  18. Mercedes Benz Sprinter Service

    I was very happy to uncover this page. I need to to thank you for ones time for this wonderful read!! I definitely loved every bit of it and i also have you bookmarked to see new things on your blog.

    https://www.bestprice.gr/url?q=https://fleetservicesorangecounty.com/custom-van-repair-shop-near-me

    May 12, 2021 at 12:53 | Report abuse | Reply
  19. store xnxx

    I couldn’t refrain from commenting. Exceptionally well written!

    https://sso.esolutionsgroup.ca/default.aspx?SSO_redirect=https://ocrv.life/rv-repair-shop-palm-springs-california

    May 12, 2021 at 13:28 | Report abuse | Reply
  20. Repair Sprinter

    http://localbusiness.starnewsonline.com/__media__/js/netsoltrademark.php?d=fleettruckrepairshop.com/van-upholstery-shop-near-me

    May 12, 2021 at 16:15 | Report abuse | Reply
  21. fiberglass dent repair

    I need to to thank you for this fantastic read!! I certainly loved every little bit of it. I have you bookmarked to check out new things you post…

    https://www.fens.org/EPiServerMail/Public/CheckLink.aspx?url=https://ocrv.art/box-truck-collision-repair-shop-near-me

    May 12, 2021 at 18:22 | Report abuse | Reply
  22. South Haven Michigan Mercedes Sprinter Repair Near Me

    I could not refrain from commenting. Well written!

    https://moshtix.com.au/v2/ForceDesktopView?callingUrl=https://commercialrepairshop.com/camper-van-conversion-shop-near-me

    May 12, 2021 at 21:06 | Report abuse | Reply
  23. Sprinter 2500 Front Glass Repair

    This website was... how do I say it? Relevant!! Finally I've found something that helped me. Thank you!

    https://s5.histats.com/stats/r.php?869637&100&47794&urlr=&sprintervanrepairshop.com/sprinter-van-repair-shop-near-me

    May 12, 2021 at 21:16 | Report abuse | Reply
  24. RV Dent Repair Orange County

    Can I simply say what a comfort to uncover somebody that actually understands what they're discussing online. You certainly understand how to bring an issue to light and make it important. A lot more people have to check this out and understand this side of your story. I can't believe you are not more popular given that you most certainly have the gift.

    http://ct.kctag.net/live/?type=sec&se=586e6cac86c4880011e7d164&sh=586d11785c3dc80010ff87da&ext=true&r=http3A2F2Fyelp.com/biz/ocrv-center-yorba-linda-2&ksid=518eaw6FZgP

    May 13, 2021 at 00:55 | Report abuse | Reply
  25. phone repair ambulance

    There's certainly a lot to find out about this subject. I like all the points you have made.

    https://www.kristianstad.se/find_v2/_click?_t_id=1B2M2Y8AsgTpgAmY7PhCfg==&_t_q=biltvätt&_t_tags=language:sv,siteid:b47c99cb-a914-4f1b-8fba-9e4836a984f6&_t_ip=193.17.67.73&_t_hit.id=SvensktVatten_Web_Models_Pages_ArticlePage/_cbc5360e-69b3-4075-84fb-b15072516591_sv&_t_hit.pos=1&_t_redirect=https://youtube.com/watch?v=-zLxOy3vX_c

    May 13, 2021 at 02:57 | Report abuse | Reply
  26. rv inspection near me

    https://cartridges.planetark.org/r/www.youtube.com/watch?v=DolPVJRibfw

    May 13, 2021 at 05:38 | Report abuse | Reply
  27. rv rentals orange county ca

    Hello there! I could have sworn I’ve been to this website before but after browsing through some of the articles I realized it’s new to me. Regardless, I’m definitely happy I found it and I’ll be bookmarking it and checking back regularly!

    http://www.thewebcomiclist.com/phpmyads/adclick.php?bannerid=653&zoneid=0&source=&dest=http://youtube.com/watch?v=7-7aMOCfRPY

    May 13, 2021 at 08:19 | Report abuse | Reply
  28. best auto body shop in orange county

    https://juicystudio.com/services/readability.php?url=https://ocrv.xyz/motorhome-bathroom-repair-near-me

    May 13, 2021 at 09:10 | Report abuse | Reply
  29. rv electrical repair near me

    Good post. I learn something new and challenging on blogs I stumbleupon every day. It's always interesting to read content from other authors and practice a little something from other web sites.

    https://www.banan.cz/goto.php?url=http://youtube.com/watch?v=ARGDTWl9L9Q

    May 13, 2021 at 11:05 | Report abuse | Reply
  30. trailer repair orange county

    https://track.aftermarket.pl/track.php?ref=&url=https://ocrv.world/garbage-truck-collision-repair-shop-near-me

    May 13, 2021 at 18:53 | Report abuse | Reply
  31. Diesel Sprinter Repair Service

    Excellent post. I'm facing many of these issues as well..

    http://lists.websolutions.com/redirector.asp?e=3304943442344678&URL=https://fleetvehiclerepairshop.com/sprinter-van-windshield-replacement-shop-near-me

    May 14, 2021 at 07:51 | Report abuse | Reply
  32. RV Driver Seats Orange County

    An outstanding share! I've just forwarded this onto a co-worker who has been conducting a little homework on this. And he in fact bought me breakfast because I discovered it for him... lol. So allow me to reword this.... Thank YOU for the meal!! But yeah, thanks for spending some time to talk about this matter here on your site.

    http://www.s125.ru/go/yelp.com/biz/ocrv-center-yorba-linda-2

    May 14, 2021 at 11:15 | Report abuse | Reply
  33. rv furniture san diego

    http://sc.hkexnews.hk/TuniS/ocrv.today/bucket-truck-collision-repair-shop-near-me

    May 14, 2021 at 11:20 | Report abuse | Reply
  34. Dodge Sprinter Repair

    https://www.grantrequest.com/SID_1268/default4.asp?SA=EXIT&url=https://sprintervanrepairshop.com/plumber-truck-repair-shop-near-me

    May 14, 2021 at 11:34 | Report abuse | Reply
  35. tow truck repair shop

    https://my.volusion.com/TransferLogin.aspx?HostName=ocrv.info/rv-service-near-me

    May 14, 2021 at 12:03 | Report abuse | Reply
  36. rv repair lancaster ca

    https://www.luerzersarchive.com/goto/url/ocrv.mobi/rv-flooring-repair-near-me

    May 14, 2021 at 12:39 | Report abuse | Reply
  37. houses for sale dalton gardens idaho

    http://onionring.jp/rank.cgi?mode=link&id=281&url=meganleary.com/

    May 14, 2021 at 16:49 | Report abuse | Reply
  38. paint a horse trailer

    http://10lowkey.us/UCH/link.php?url=https://ocrv.tv

    May 14, 2021 at 19:09 | Report abuse | Reply
  39. Old Maserati

    I must thank you for the efforts you have put in writing this site. I really hope to check out the same high-grade content from you later on as well. In truth, your creative writing abilities has encouraged me to get my own site now 😉

    https://www.theweddingsecret.co.uk/BusinessClickthroughs/add?website=https://club-maserati.com/&id=1070977&business_id=2069

    May 15, 2021 at 00:11 | Report abuse | Reply
  40. school bus repair near me

    http://www.ace-ace.co.jp/cgi-bin/ys4/rank.cgi?mode=link&id=26651&url=http://www.ocrv.guru/

    May 15, 2021 at 02:24 | Report abuse | Reply
  41. Eye Doctor Near Me Now

    I’m amazed, I have to admit. Seldom do I encounter a blog that’s both educative and engaging, and let me tell you, you've hit the nail on the head. The issue is an issue that too few men and women are speaking intelligently about. Now i'm very happy that I came across this in my search for something concerning this.

    http://www.adventuresonly.com/redirecthandler.ashx?url=https://arizonasvision.com/

    May 15, 2021 at 04:08 | Report abuse | Reply
  42. tv repair temecula ca

    https://www.bigtimesportsohio.com/Redirect.aspx?destination=https://ocrvshop.com

    May 15, 2021 at 06:30 | Report abuse | Reply
  43. Ophthalmologist Near Me

    https://www.10lowkey.us/UCH/link.php?url=https://arizonasvision.com/

    May 15, 2021 at 07:55 | Report abuse | Reply
  44. Eye Doctor Ahwatukee

    Howdy! I just want to give you a huge thumbs up for the excellent info you have here on this post. I am returning to your website for more soon.

    http://ztjysp99.com/link.php?url=http://arizonasvision.com

    May 15, 2021 at 09:37 | Report abuse | Reply
  45. truck shop orange county

    http://www.dev-skanvor.1gb.ru/redir.php?url=https://ocrvmotorsports.org

    May 15, 2021 at 11:36 | Report abuse | Reply
  46. realtors near me

    https://www.saco.se/EPiServerMail/Public/CheckLink.aspx?url=http://meganleary.com

    May 15, 2021 at 12:48 | Report abuse | Reply
  47. aika private server files download

    https://aikareborn.com/members/jurielkill.30017

    May 15, 2021 at 21:21 | Report abuse | Reply
  48. Social Media Marketing Firms Near Me

    https://nacogdoches.org/banner-outgoing.php?banner_id=38&b_url=http://affordableranking.com

    May 15, 2021 at 21:52 | Report abuse | Reply
  49. Aika Astrobunny

    After looking over a handful of the blog articles on your web site, I honestly like your technique of writing a blog. I bookmarked it to my bookmark site list and will be checking back soon. Take a look at my web site too and tell me what you think.

    https://aikareborn.com/members/nelversonxpk.20391

    May 15, 2021 at 22:15 | Report abuse | Reply
  50. Aika Forum

    http://www.toolsir.com/alexa/siteinfo/aikareborn.com/wiki/relics_stats

    May 16, 2021 at 00:36 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10

Post a comment


 

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.