The Pitfalls of Motion Control Features.

Welcome to Monday, folks. Today Dr Ivo discusses why not all shoes are created equal and why you need to understand and educate your peeps about shoes!

Internal tibial torsion is when the foot is rotated internally with respect to the tibia. When the foot is straight (like when you are walking, because the brain will not let you walk too internally rotated because you will trip and fall), the knee will rotated OUTSIDE the saggital plane (knee points out). Putting a medially posted shoe on that foot rotates the foot EVEN FURTHER laterally. Since the knee is a hinge joint, this can spell disaster for the meniscus.

need to know more? email us or send us a message about our National Shoe Fit Program.

More on the Minimalist Debate

“Nearly a third (29%) of those who had tried minimalist running shoes reported they had experienced an injury or pain while using the shoes. The most common body part involved was the foot. Most (61%) of those reports involved a new injury or pain, 22% involved recurrences of old problems, and 18% were a combination of both old and new musculoskeletal problems.

More than two thirds (69%) of those who had tried minimally shod running said they were still using minimalist running shoes at the time of the survey, but nearly half of those who had stopped said they did so because of an injury or pain. The most common sites of pain or injury that caused survey participants to discontinue minimally shod running were the foot (56%) and the leg (44%).

While some runners who tried minimalist running shoes suffered some pain and discomfort, a greater percentage (54%) said they had pain that improved after making the switch. The anatomical area most often associated with improvement was the knee. The results were published in the August issue of PM&R.”

Look at your patients and clients shoes!

Can you see the varus cant to the heel counter of these shoes? This is an Asics  Gel  Kayano; a shoe we seem to see manufacturers defects in frequently. This could be a good thing for an overpronator, but could be a bad thing for a supinator. With a drop ( ramp delta) of 13 mm, and a narrow toe box, we are not huge fans…

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

Podcast 94: The Shoe & Motor Control Podcast

Shoes, Minimalism, Maximalism, Motor fatigue, Brain stuff and more !

A. Link to our server:
http://traffic.libsyn.com/thegaitguys/pod_94final.mp3

Direct Download:  http://thegaitguys.libsyn.com/podcast-94

-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:

movement and brain function; based on your piece: http://www.vancouversun.com/touch/story.html?id=11237102

shoe fit:
http://running.competitor.com/2015/07/shoes-and-gear/sole-man-the-pros-and-cons-of-buying-cheap-running-shoes_129297

http://www.runresearchjunkie.com/relevant-gems-from-the-2015-footwear-biomechanics-symposium/

Clin Biomech (Bristol, Avon). 2006 Dec;21(10):1090-7. Epub 2006 Sep 1.

The effect of lower extremity fatigue on shock attenuation during single-leg landing.

Coventry E1, O’Connor KM, Hart BA, Earl JE, Ebersole KT.

Dr. Ted Carrick podcast

http://thewellnesscouch.com/bc/bc-07-professor-frederick-ted-carrick-on-the-past-of-functional-neurology

https://itunes.apple.com/au/podcast/backchat/id972497993?mt=2

movement patterns talk: http://www.anatomy-physiotherapy.com/28-systems/musculoskeletal/lower-extremity/knee/1191-altered-movement-patterns-in-individuals-with-acl-rupture

http://lermagazine.com/issues/june/balance-data-suggest-somatosensory-benefit-of-minimalist-footwear-design
Wilson SJ, Chander H, Morris CE, et al. Alternative footwear’s influence on static balance following a one-mile walk. Med Sci Sports Exerc 2015;46(5 Suppl);S562.

http://lermagazine.com/issues/june/running-shoe-reveal-study-links-max-cushioning-higher-load

movement patterns talk: http://www.anatomy-physiotherapy.com/28-systems/musculoskeletal/lower-extremity/knee/1191-altered-movement-patterns-in-individuals-with-acl-rupture

If you plan to live that long, you better start thinking about preservation:
http://www.cnbc.com/id/102730128  

Music piece/ Bass players:
http://mentalfloss.com/article/64955/science-proves-supreme-power-bassists

Podcast 89: 2015 Shoe Talk, Foot Beds, and shoe stuff you need to know.

A. server links

http://traffic.libsyn.com/thegaitguys/pod_89f.mp3

http://thegaitguys.libsyn.com/89

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:
Monthly lectures at : www.onlinece.com   type in Dr. Waerlop or Dr. Allen,  ”Biomechanics”

E. 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 /iTunes Readers:

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:

 
Running Shoes : Alex and Blaise ?
 
And on that same topic, Foot beds, sock liners and orthotics:
 
super feet

what you put in your shoe can change the way the shoe was designed to work……careful what you put in the shoe 
 
 
and … 
Effect of rocker shoes on plantar pressure pattern in healthy femal… – PubMed
http://www.ncbi.nlm.nih.gov/pubmed/24370440
 
Why Running Shoes do not work:

Shoe lacing problems, things you need to know (that you don’t).

How you lace your shoes does truly matter (according to this study).
We have talked about shoe lacing on more than one occasion. Everyone has played around with different laces and lacing strategies at one time or another. And, every shoe seems to lace just a little differently. Some shoes lace far into the forefoot, some have the potential to lace high up into the ankle.  But just because there are eyelets there, doesn’t mean  you have to thread a lace through the hole. It is about fit the majority of the time.  Some of our runners will use “skip” lacing to avoid pressure over the dorsum of the foot, especially if they have a saddle exostosis or hot tendon in that area, much of the time this works to alleviate the pain and pressure there. Just remember, impaired ankle rocker often via weakness of the anterior compartment muscles (toe extensors, tibialis anterior, peroneus tertius) will force dorsiflexion moments into the midfoot and can cause some joint-related compressive pressure on the dorsal foot which can seemingly (and mistakenly) come from shoes tied too tight across the top of the foot. Be sure to consider this fact before you “skip lace” your shoes, it is a big player, one we see all of the time.
In today’s journal article found below, we discover some other factors in a controlled study.  Here they look into the effects of lacing on biomechanics in running, specifically rearfoot runners. The results of the study showed reduced loading rates and pronation velocities as well as lowest peak pressures under the heel and lateral midfoot in the tightest and highest laced shoes. Whereas, the lower laced shoes resulted in lower impacts and lower peak pressures under the 3rd and 4th metatarsal heads (they proposed that this was from forward foot slide in the shoe because of this lacing). The study authors concluded 

 A firm foot-to-shoe coupling with higher lacing leads to a more effective use of running shoe features and is likely to reduce the risk of lower limb injury.

Remember, this is just data for you to cogitate over. It can help you work through some possible issues with your feet and your sport, however it does not translate to everyone as a standard protocol. Remember this, we have been known to say, “your problem is not often the shoe, it is the thing in the shoe (you and your faulty biomechanics)”. However, blaming your problems on you is not good shoe manufacturer advertising, so many shoe companies will offer a plethora of shoes choices for you to accommodate to your variables. This does not necessarily mean the problem is solved, rather it is often managed by a “better” shoe choice that seems to work for your variables. This is a good thing most of the time, if you understand shoes, shoe anatomy, and human anatomy (foot types) so that you can pair them up for a best outcome. The problem may lie in the fact that your shoe fitter is not likely to have all of the necessary pieces to put your perfectly matched picture together, including understanding your total body biomechanics and possibly understanding why a weak glute is impairing hip extension and thus limiting ankle rocker motion, causing premature heel rise, and thus forcing too much dorsiflexion into the arch of the foot and premature forefoot loading causing what seems to be too tightly tied shoes.  
What we truly need an e-Harmony for matching shoes and feet ! But since that perfect scenario doesn’t often exist at the shoe store level or gait analysis level, here at The Gait Guys we have put together the next best thing, The National Shoe Fit Certification Program if you care to take this all to the next level. 
Shoe fitting is an art, and lacing is just another paint brush you can  use to get the job done. You just have to know what brush to use for each given piece of art (ie. the athlete). 
Shawn and Ivo, The gait guys
J Sports Sci. 2009 Feb 1;27(3):267-75. doi: 10.1080/02640410802482425.

Effects of different shoe-lacing patterns on the biomechanics of running shoes.