Podcast 154. A "Farewell to the King", Knee Fences, and Durability

A "Farewell to the King", Knee Fences, and Durability
This is a nice follow up to pod 153, the reboot

#RUSHisking, #theprofessor, #neilpeart, #greatestdrummerofalltime

Links to find the podcast:
Look for us on Apple Podcasts, Google Play, Podbean, PlayerFM, RADIO and more.
Just Google "the gait guys podcast".

Our Websites:
www.thegaitguys.com
Find Exclusive content at: https://www.patreon.com/thegaitguys
doctorallen.co
summitchiroandrehab.com
shawnallen.net

Our website is all you need to remember. Everything you want, need and wish for is right there on the site.
Interested in our stuff ? Want to buy some of our lectures or our National Shoe Fit program? Click here (thegaitguys.com or thegaitguys.tumblr.com) and you will come to our websites. In the tabs, you will find tabs for STORE, SEMINARS, BOOK etc. We also lecture every 3rd Wednesday of the month on onlineCE.com. We have an extensive catalogued library of our courses there, you can take them any time for a nominal fee (~$20).

Our podcast is on iTunes and just about every other podcast harbor site, just google "the gait guys podcast", you will find us.

Where to find us, the podcast Links:
Apple podcasts:
https://itunes.apple.com/us/podcast/the-gait-guys-podcast/id559864138?mt=2

Google Play:
https://play.google.com/music/m/Icdfyphojzy3drj2tsxaxuadiue?t=The_Gait_Guys_Podcast

Other links for today's show:
http://traffic.libsyn.com/thegaitguys/pod_jan17_-_12620.mp3

http://thegaitguys.libsyn.com/a-farewell-to-the-king-knee-fences-and-durability

http://directory.libsyn.com/episode/index/id/12889889


#RUSHisking, #theprofessor, #neilpeart, #greatestdrummerofalltime

The funny problem with the stairs at Brooklyn’s 36th Street subway. Why we trip..

The funny problem with the stairs at Brooklyn’s 36th Street subway. Why we trip..

At Brooklyn’s 36th Street subway stop, one of the steps is slightly higher than the others. Stairs have a standardized Rise and Run and when this is altered, specifically the Rise, funny things happen. Filmmaker Dean Peterson set up his camera to capture the stumbles and the video can be seen here http://vimeo.com/44807536 and above on our blog.

The dangerous step, it turns out (which has since this video been repaired), is apparently a half-inch higher than the others. Stairway design guidelines vary within a small range. Guidelines call for risers to be a minimum of 6 inches and a maximum of 7 ¾ inches. The allowable variance between steps is 3/8 of an inch depending on the source you seek.

(The general rule (in the US) is 7-11 (a 7 inch rise and 11 inch run). More exactly, 7 ¾ rise and an 11 ½ inch run, although some people will use a run of as little as 9 inches.)

This is a perfect example of how sensitive and predictive the human body is with all of its amazing joint position sense receptors. But there is more to it than a simple step height differential. Read on.

There are multiple demands that stairs place on the neuro-musculoskeletal system. There are needs for input from the somatosensory, visual, and vestibular systems at various stages in the task. Some of these collaborating systems deteriorate with the aging process making the failure of stair negotiation a legitimate risk for the elderly or those that are handicapped in one of the 3 primary systems noted above. Studies (see references below) strongly link impairments in the visual system to safe stair negotiations. The Buckley study found that the mediolateral balance during stepping up and down stairs (single limb support stability) was significantly reduced (especially stepping down) by blurred vision highlighting the critical necessity of vision in stepping dynamics. Hence, one must be aware of people traffic on steps, if a stairway is dense with traffic the ability to gain the visual cues of the successive stairs is paramount. The next time you are in a school or subway stairwell notice the undercurrent of your discomfort may be from the inability to see enough steps in front of you. Letting the person ahead of you clear some distance is a must, especially if you are vision impaired, elderly, wearing dark tinted glasses or are without the ability to use other cues such as railings (ie. adding a tactile feedback system to satisfy the impairment of visual cues).

There are other user created impairments that we may be unaware of consciously. In the Miyasike-daSilva study it was determined that as participants approached and walked stairs, gaze was within 4 steps ahead of their location indicating that individuals often rely on spatial cues from prior experience or from other visual cues to obtain the necessary information from the environment. Thus, one must be careful carrying something such as a baby, groceries or laundry basket in front of you thus impairing the lower visual field. We have all carried something up or especially downstairs and either thought we were on the last step or found we had one more to go and found ourselves either stumbling forward or hyperextending our knee as we lurch down onto the unexpected step. In the video you will see a great example of this forward catch as one of the ladies is carrying a baby in front of her, luckily she makes the correct saving motor choice. Being able to plan/control landing mechanics are significantly different when the visual system is locked out or impaired from stepping tasks. Timmis found that the contribution of information from the lower visual field of gaze in controlling the landing strategy occurs predominantly prior to or during movement initiation of the foot and limb and that ‘online’ or immediate vision is used only in the latter portion of the descent phase to fine tune the step landing. Buckley found that under visual impairments subjects used the cautious strategy of keeping their weight back on the trail limb longer making weight transfer noncommittal affording the time necessary for the lead limb to fish around for the next step.

There is so much involved in negotiating stairs and steps, even level ground walking. There are many cues we have learned to subconsciously glean information from. Sadly, when we begin to age and lose proprioceptive or visual information things begin to fall apart. The system is so sensitive and intuitive. This is why when someone changes the ground level, or the height of a step as in this video, the system fails even the best of us who have all of our faculties about us. And, we learn more about gravity at that moment than we wish to learn.

Shawn and Ivo, The Gait Guys

References:

1. J Am Geriatr Soc. 2000 May;48(5):567-80. Startzell JK,Owens DA , Mulfinger LM, Cavanagh PR .Stair negotiation in older people: a review.

2. Gait Posture. 2005 Oct;22(2):146-53.Buckley JG,Heasley K,Scally A,Elliott DB.The effects of blurring vision on medio-lateral balance during stepping up or down to a new level in the elderly.

3. Exp Brain Res. 2009 May;195(2):219-27. Epub 2009 Mar 31.Timmis MA,Bennett SJ,Buckley JG .Visuomotor control of step descent: evidence of specialised role of the lower visual field.

4. Exp Brain Res. 2008 Jan;184(2):223-32. Epub 2007 Aug 29.Buckley JG,MacLellan MJ,Tucker MW,Scally AJ,Bennett SJ.Visual guidance of landing behaviour when stepping down to a new level.

5. Exp Brain Res.2012 Sep 22. [Epub ahead of print]Shinya M,Popescu A,Marchak C,Maraj B,Pearson K.Enhancing memory of stair height by the motor experience of stepping.

6. Exp Brain Res. 2011 Mar;209(1):73-83. Epub 2010 Dec 25.Miyasike-daSilva V,Allard F,McIlroy WE .Where do we look when we walk on stairs? Gaze behaviour on stairs, transitions, and handrails.

7. PLoS One.2012;7(9):e44722. Epub 2012 Sep 6.Does it really matter where you look when walking on stairs? Insights from a dual-task study. http://www.ncbi.nlm.nih.gov/pubmed/22970297Miyasike-Dasilva V,McIlroy WE.PMID:22970297[PubMed - in process] PMCID:PMC3435292 Free PMC Article

#153, The Podcast Reboot: A Deep dive on knee mechanics, loading and running.

Its 2020 and we are back ! The Gait Guys Podcast Reboot !

Links to find the podcast:
Look for us on Apple Podcasts, Google Play, Podbean, PlayerFM, RADIO and more.
Just Google "the gait guys podcast".

Our Websites:
www.thegaitguys.com
Find Exclusive content at: https://www.patreon.com/thegaitguys
doctorallen.co
summitchiroandrehab.com
shawnallen.net

Our website is all you need to remember. Everything you want, need and wish for is right there on the site.
Interested in our stuff ? Want to buy some of our lectures or our National Shoe Fit program? Click here (thegaitguys.com or thegaitguys.tumblr.com) and you will come to our websites. In the tabs, you will find tabs for STORE, SEMINARS, BOOK etc. We also lecture every 3rd Wednesday of the month on onlineCE.com. We have an extensive catalogued library of our courses there, you can take them any time for a nominal fee (~$20).

Our podcast is on iTunes and just about every other podcast harbor site, just google "the gait guys podcast", you will find us.

Where to find us, the podcast Links:
Apple podcasts:
https://itunes.apple.com/us/podcast/the-gait-guys-podcast/id559864138?mt=2

Google Play:
https://play.google.com/music/m/Icdfyphojzy3drj2tsxaxuadiue?t=The_Gait_Guys_Podcast

other links for today's show:

http://traffic.libsyn.com/thegaitguys/pod_jan10_-_11220.mp3

http://directory.libsyn.com/episode/index/id/12705212

https://oembed.libsyn.com/embed?item_id=12705212

http://thegaitguys.libsyn.com/podcast-reboot-deep-dive-on-knee-mechanics-loading-and-running




The Future of AI and gait.

Regarding the future study of gait and human movement in 10 years.

. . . . he has now developed "Talk to Books", which is a program where by you ask a question, and within a half a second (0.5 seconds) it will read 120,000 books (yes, 120 thousand books) on the verbiage you asked it to look into, and give you the most in-depth answer based on that 120,000 book wisdom. This is search based on meaning, context, not on key words and hashtags. This is the future of information acquisition. . . . .

"Semantic Search" is quite possibly going to take over things. Forget key words and hashtags, perhaps. But what does this have to do with gait and us at The Gait Guys.

I recently re-listened to a Ray Kurzweil interview where he discussed the predicted technological breakthroughs in artificial intelligence in 10 years (2030). Kurzweil is an odd visionary in this regard, he is often very close to spot on which is the reason for his ground breaking inventions. If you do not know about Ray Kurzweil, you should see his ahead-of-the-rest inventions on his Wikipedia page, the man has been ahead of the curve most of the time. There is a good reason Google hired him several years ago.
Kurzweil was hired to deepen several projects, one namely, "semantic research", to deepen the meaning behind the data and the facts, which is largely what the internet now provides. So in essence, he was hired to take the internet's data and place meaning behind it and within it, semantics. Semantics are the branch of linguistics and logic concerned with meaning, they are the meaning behind words. This is sort of what we are referring to as AI, Artificial Intelligence.

According to Kurzweil, this is where "the web" is headed, some would argue it is already upon us, it is inevitable in his opinion and it is hard to argue. "Semantic search" will lead us, meaning no longer will we be searching the web, "googling" key words, rather we will be searching by meaning and conversing with the web. He has been successful in this endeavor according to this latest TED talk interview; he has created "Smart Reply". This is already tapping into Google Smart Home, Google Assistant etc. What this means for a computer is that it models the intent and various nuanced elements of language and data. Kurzweil projects this to be full on board by 2029, 10 years from now, which is why he believes AI will be fully on board by that date. It is not hard to see that this is an accurate and a foregone conclusion. For example, he has now developed "Talk to Books", which is a program where by you ask a question, and within a half a second (0.5 seconds) it will read 120,000 books (yes, 120 thousand books) on the verbiage you asked it to look into, and give you the most in-depth answer based on the contents of the 120,000 books. This is search based on meaning and context, not on key words and hashtags. This is the future of information acquisition. And if you are lazy, and have the time for 6 seconds, it will read 1 million books and offer you and even more in-depth answer. No longer will memorizing data, facts or anything of the sort, be necessary, our questions will be answered, and answered deeply. This is what Kirzweil refers to as "the singularity" once it is integrated into our human physiology. And as Ray suggests, we are basically already there, we just merely hold this AI (our smart phones) in our hand right now, soon it will be fully integrated. Rather than in our hand or pocket, we will be "Bluetoothed", or "Wifi'd" in to the system. We already have seen this technology implemented in circumventing spinal cord injuries. Ivo and I discussed this in a podcast long ago.
(https://www.nytimes.com/…/wireless-brain-spine-connection-p…)

So where does this leave Ivo and myself, The Gait Guys?
Well, in 2009 we bought into the deeper web design, launching our initial voyage into the AI to come. We knew that if we were one of the initial teams of people and/or researchers putting volumes of integrated thoughts on the web based on research, clinical trials and our own integrated clinical insights that we "could" be one of the main platforms that others would follow, and build further upon. We could not have seen or known the depths that companies like Google could go to dive into a "semantic search" on "gait problems" or "gait analysis" or "gait and hallux rigidus" or anything of the sort that we #hashtagged or Key Worded. But we did know that a data base of all things gait and human movement needed to be developed and we decided to see what we could build on that front. At the time things like #hashtags were not even present, but that eventually sped up the basis of "key word" search, which has lead us to the now developing "sematic search". Back then we hoped that if we could consistently, over the next 10 years, amass a data source large enough, that we could ensure that our work and the known and validated research we based most of our writings, podcasts, videos, and even web-based teaching courses upon (onlineCE.com) could provide part of the template for other things to come, things that Kurzweil has now termed this "semantic search" and "talk to books". Certainly, obviously, we didn't see any of this Kurzeil-ian stuff coming, but we saw that the web provided more up to date and faster moving sources than our libraries of books, and as we no longer were able to acquire the answers we needed from our dated libraries, we found the internet was our go to source, and we realized that it was going to be the way for everyone very quickly.

Ivo and I have been filling the Internet with our research and thoughts on gait and related systems for 10 years now (145 podcasts, 1600+ posts and articles, research reviews and deep dive discussions and tangents taken off of the current research). Companies like Google and their "deep mind" project, and other related projects as discussed here, integrate all pieces of data.
So, it is our greatest hope that we are in fact helping to provide a great network of information for the development of gait and human movement knowledge.
In 2019 we will continue to do as we have, taking small piece research ideas and broadening them into the bigger terms and correlations and relationships with gait and human movement so that things like "Semantic Search" can help others find the information they are seeking. We hope that what people will read in 10 or 20 years is going to be partly based off of the honest framework that we have tried to provide. We hope that this heavy lifting is valuable to you. In turn, we have learned a lot from our own writings and assimilation of what is out there in the web-o-sphere and from our discussions amongst ourselves, and wit you all.

In 2019 you will be seeing some new additions to our mission here to source out good information and deep discussions. Things like live WebEx seminars, new OnlineCE.com seminar offers, AMA (Ask Me Anything) discussions with you, and we are starting up a vlog as well, hopefully bimonthly. Patreon patrons at, and above, the 10-20$ subscription levels will get many of these for free we anticipate, plus we will add on a new subscriber platform as well since Patreon seems to be challenging some "Free speech", or so it seems. So another platform with different terms of service will give you all choices in how you donate to our mission to bring you the best of what we know, and are learning.
Happy New Year to all !

Shawn & Ivo
The Gait Guys

free photo courtesy of Pixabay.com

Listen to Ray Kurzweil on what the future holds next from The TED Interview in Podcasts.

https://itunes.apple.com/us/podcast/the-ted-interview/id1437306870?mt=2&i=1000425101600&fbclid=IwAR2wdHQiaaUBOoFtz02Nu9BRLnvQnkfkDck3_iHnAd7moponZT3HcBsw-Mc