Podcast 95: Head tilt while squatting or running.

We have a strong show for you today. Ankle instability from a neurologic perspective, shoe wear, head tilt and the neurologic and functional complications… we also talk about Efferent Copy and motor learning.

A. Link to our server:
http://traffic.libsyn.com/thegaitguys/pod_95final.mp3

Direct Download:  http://thegaitguys.libsyn.com/pod-95

-Other Gait Guys stuff
B. iTunes link:
https://itunes.apple.com/us/podcast/the-gait-guys-podcast/id559864138
C. Gait Guys online /download store (National Shoe Fit Certification & more !)
http://store.payloadz.com/results/results.aspx?m=80204
D. other web based Gait Guys lectures:
Monthly lectures at : www.onlinece.com type in Dr. Waerlop or Dr. Allen, ”Biomechanics”

-Our Book: Pedographs and Gait Analysis and Clinical Case Studies
Electronic copies available here:

-Amazon/Kindle:
http://www.amazon.com/Pedographs-Gait-Analysis-Clinical-Studies-ebook/dp/B00AC18M3E

-Barnes and Noble / Nook Reader:
http://www.barnesandnoble.com/w/pedographs-and-gait-analysis-ivo-waerlop-and-shawn-allen/1112754833?ean=9781466953895

https://itunes.apple.com/us/book/pedographs-and-gait-analysis/id554516085?mt=11

-Hardcopy available from our publisher:
http://bookstore.trafford.com/Products/SKU-000155825/Pedographs-and-Gait-Analysis.aspx

Show notes:

Human exoskeletons: The Ekso
http://www.thedailybeast.com/articles/2015/08/03/the-mechanical-exoskeleton-shaping-the-future-of-health-care.html

Ankle muscle strength influence on muscle activation during dynamic and static ankle training modalities
http://www.tandfonline.com/doi/abs/10.1080/02640414.2015.1072640?rfr_id=ori%3Arid%3Acrossref.org&url_ver=Z39.88-2003&rfr_dat=cr_pub%3Dpubmed&#.VcYWR-1VhBc

Chronic ankle instability:

http://tmblr.co/ZrRYjx1akudcm

http://tmblr.co/ZrRYjx1ah6ThV

http://thegaitguys.tumblr.com/post/68785250796/just-because-a-muscle-tests-weak-doesnt-mean-it
http://thegaitguys.tumblr.com/post/117109093439/last-week-we-ran-an-archived-piece-named-just

the future of footwear and orthotics ?
http://lermagazine.com/special-section/conference-coverage/the-future-of-footwear-and-orthoses-is-here-now-what

squats- head posture-gait vision-gravity
http://thegaitguys.tumblr.com/search/vision

Music: brain rhythm
http://www.kurzweilai.net/the-brains-got-rhythm

This is a slide from a recent teleseminar we delivered on  www.onlineCE.com .  You can take any of our dozens of courses/lectures there for a nominal fee  .  
     
  This was an interesting study.  Here the authors seemed to discover that habitually driven sensory-motor patterns (as compared to optimally controlled patterns) are quite resistant to changes in biomechanics. In the study, when the tested model was compromised, the subject merely increased the recruitment of all of the surrounding muscles to stabilize and direct movement. Basically, there was no great and calculated logical strategy, it was an all out, habitually automated response … . a “just get the job done right now kind of response”.  Perhaps a “living in the moment” response?    
  We have often said that the paramount task via the central nervous system is an orchestration at the the joint, it must be stabilized and movement controlled at the moment of the joint challenge. But, the problem lies in that the consequences of a suboptimal strategy cannot be determined in the moment, they come in time. And this is likely what builds these aberrant compensation patterns, they happen slowly, subtly over time little by little.   
  Just as in life, the cost of our decisions are not often immediately realized.  
    
  Shawn and Ivo  
  The gait guys
This is a slide from a recent teleseminar we delivered on www.onlineCE.com.  You can take any of our dozens of courses/lectures there for a nominal fee.
 
This was an interesting study.  Here the authors seemed to discover that habitually driven sensory-motor patterns (as compared to optimally controlled patterns) are quite resistant to changes in biomechanics. In the study, when the tested model was compromised, the subject merely increased the recruitment of all of the surrounding muscles to stabilize and direct movement. Basically, there was no great and calculated logical strategy, it was an all out, habitually automated response … . a “just get the job done right now kind of response”.  Perhaps a “living in the moment” response?  
We have often said that the paramount task via the central nervous system is an orchestration at the the joint, it must be stabilized and movement controlled at the moment of the joint challenge. But, the problem lies in that the consequences of a suboptimal strategy cannot be determined in the moment, they come in time. And this is likely what builds these aberrant compensation patterns, they happen slowly, subtly over time little by little. 
Just as in life, the cost of our decisions are not often immediately realized.
Shawn and Ivo
The gait guys

Podcast 60: Speeding up at the finish line & Efferent Copy

A. Link to our server:

Direct Download: 

http://traffic.libsyn.com/thegaitguys/pod_60final.mp3

Permalink: 

http://thegaitguys.libsyn.com/podcast-60-speeding-up-at-the-finish-line-efferent-copy

B. iTunes link:

https://itunes.apple.com/us/podcast/the-gait-guys-podcast/id559864138

C. Gait Guys online /download store (National Shoe Fit Certification and more !) :

http://store.payloadz.com/results/results.aspx?m=80204

D. other web based Gait Guys lectures:

www.onlinece.com   type in Dr. Waerlop or Dr. Allen,  ”Biomechanics”

______________

Today’s Show notes:

1.  Move Your Body, Grow Your Brain

6. Blog reader: Hey again, I personally compete in this uphill/ downhill running race in 2 months. The slops are really steep(incline/ decline).I’m just looking for some useful tips on running biomechanics, cadence etc. Any hints on what things I should be doing and of course avoid doings that will lead to injury? An international podcast fun!

7. Blog reader:

How does subtalar supination/pronation affect plane deviations farther up the chain, specifically at the pelvis? I was going over some notes and found something saying that increased pronation leads to increased frontal plane motion at the pelvis during gait, and increased sup leads to increased transverse plane motion. However, in this video I was watching, the clinician states that increased sup will lead to increased frontal plane motion. Is this not a contradiction? Can both be true? Thanks