Podcast 72: Neuroplasticity, EVA Shoe Foam, and Shoe Trends

Maximalist shoes and the death of Minimalism ? Could this be true ?

*Show sponsor: www.newbalancechicago.com

Lems Shoes.  www.lemsshoes.comMention GAIT15 at check out for a 15% discount through August 31st, 2014.

A. Link to our server: 

http://traffic.libsyn.com/thegaitguys/pod_73f.mp3

Direct Download: 

http://thegaitguys.libsyn.com/podcast-72

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. Neuroplasticity: Your Brain’s Amazing Ability to Form New Habits
new link (does not have the old photo ivo mentioned that he loved)
 
2. Last week we pounded the sand on EVA foam and maximalist shoes. There was alot of attention, emails and good social media discussion on the topic.  
LETS REVIEW IT
file:///Users/admin/Downloads/p142_Heel_shoe_interactions_and_EVA_foam_f_web_150dpi.pdf
 
3. Then there just last week there was an article in LER on “the death of minimalist shoes” ? 
READ THIS: 
The rise and fall of minimalist footwear | Lower Extremity Review Magazine
http://lermagazine.com/cover_story/the-rise-and-fall-of-minimalist-footwear
 

4.  Physical Therapy as Effective as Surgery for Meniscal Tear

Kathleen Louden

March 20, 2013
Torn Meniscus? Thinking about surgery? Think again…


5. Cast study: the broken foot tripod

Podcast 72: Neuroplasticity, EVA Shoe Foam, and Shoe Trends

Maximalist shoes and the death of Minimalism ? Could this be true ?

*Show sponsor: www.newbalancechicago.com

Lems Shoes.  www.lemsshoes.comMention GAIT15 at check out for a 15% discount through August 31st, 2014.

A. Link to our server: 

http://traffic.libsyn.com/thegaitguys/pod_73f.mp3

Direct Download: 

http://thegaitguys.libsyn.com/podcast-72

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. Neuroplasticity: Your Brain’s Amazing Ability to Form New Habits
new link (does not have the old photo ivo mentioned that he loved)
 
2. Last week we pounded the sand on EVA foam and maximalist shoes. There was alot of attention, emails and good social media discussion on the topic.  
LETS REVIEW IT
file:///Users/admin/Downloads/p142_Heel_shoe_interactions_and_EVA_foam_f_web_150dpi.pdf
 
3. Then there just last week there was an article in LER on “the death of minimalist shoes” ? 
READ THIS: 
The rise and fall of minimalist footwear | Lower Extremity Review Magazine
http://lermagazine.com/cover_story/the-rise-and-fall-of-minimalist-footwear
 

4.  Physical Therapy as Effective as Surgery for Meniscal Tear

Kathleen Louden

March 20, 2013
Torn Meniscus? Thinking about surgery? Think again…


5. Cast study: the broken foot tripod

Podcast 50: Lactate Thresholds, Fartleks ? & more.

A. Link to our server:

http://thegaitguys.libsyn.com/pod-50

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:

Neuroscience
1. Yes, this is dog: No More Woof aims to translate canine thoughts into human speech
http://www.engadget.com/2013/12/18/no-more-woof-indiegogo-concept-dog-headset/
2. Foot Drop solution ?
4. Gait Talk:
4B . Lactate Threshold Talk
5. Footprints of the gait gods.
6. Fascial NeuroBiology: An explanation for possible manual therapy treatment effects «
http://www.thebodymechanic.ca/2012/10/28/fascial-neurobiology-an-explanation-for-possible-manual-therapy-treatment-effects/
7. National Shoe Fit Certification Program
8. Email:

Hi Guys –
I’m based in the UK. I’ve been running again for a year. I upped to 35 miles per week a month ago (from 25/30) and two weeks later I was injured with an inflamed piriformis muscle (it’s not syndrome). The pain is on my left side. I have a weaker gluteus medius on my left side. I did also put a chainsaw through my right inner thigh near the knee (it fell short of the bone and main artery in the leg) when i was 18 (i am now 40) – which may also have something to do with my question, but maybe not.
When I run, my right foot points outward during my right foot’s swing phase (but it lands straight). I can’t find an answer anywhere: is my outward pointing right foot perhaps the cause of the piriformis inflammation, and if so, how do i correct my foot movement during the swing phase? Help!!!
Weirdly, i have been obsessing about it for months but cannot correct it, and because of that I’ve noticed that a number of other people have from the same problem.

* Disclaimer
10 . How Does Foam Rolling Work? And Why “SMR” Should be Called “SMT” | Bret Contreras
http://bretcontreras.com/how-does-foam-rolling-work-and-why-smr-should-be-called-smt/

11. Behold The ‘Strength Axle’

The Hokaone: Hoka or Hokey?

http://www.hokaoneone.com/en/technology.html
We have been off the grid for a week amassing new research for the website and looking into new products that have come online recently. But we are back now with new stuff.  Lets start today on this shoe, the Hoka.

From their website “ By using an EVA 30% softer and increasing its total volume to 2.5 times that of a typical trail running shoe, we allow for more cushioning than any other shoe on the market today, dissipating up to 80% of the shock associated with heel striking when running. Allowing for as much as 20mm of compression in the heel, with a low ramp angle allows for tremendous confidence running downhill, as runners can now engage their gluteus and lower back as opposed to isolating their quads, relaxing the body and making running downhill fun and comfortable.”

 What we like:
1-A low ramp angle definitely helps one to engage their glutes more.
2- light weight is often a good thing

What we don’t like:
There have been enough papers published that show increased cushioning decreases impact at heel strike, but increases overall impact forces sustained by the body. A thickened sole decreases the amount of proprioception and requires the body to work harder by compressing more of the EVA foam, and with this shoe, that will be quite a bit of body work.

A little sole rocker off the front endcan be a good thing, especially with people who lack great toe dorsiflexion, but enough to take up 50% of the sole length and 4 cm high? Wow ! This would decrease the amount of forefoot rocker and subtract from the 3 rockers that the foot was normally designed to work with (heel, ankle and forefoot). The research (which at least we have read) shows that rockered shoes increase knee flexion during the first part of the stance phase of ambulation, and less in swing phase. More significantly, ankle plantarflexion is increased at heelstrike through terminal stance, thus delaying pronation (plantar flexion, inversion and adduction are components of supination); this would dampen the shock absobtion afforded from pronaion and lowering of the ankle mortise. Interestingly, this increases the impact force at heel strike significantly as well.

“With 50% more surface area than the typical trail running shoe, and 35% more rubber crampons, you’ve never run as confidently as you will in a pair of Hoka’s.” Hmm. Doesn’t a larger footprint, especially at the midfoot, hamper the natural dampening mechanism of pronation? What about the increased mechanical requirements to move the extra sole? Sure, it will be more stable, but at the cost of mechanical efficiency.

Take a look at the break points on the undersole; Why put a break directly under the calcaneus and then one immediately anterior (under the sustantaculum tali) at a 90 angle to the plane of the joint? The ones across the transverse metatarsal arch proximally are in an arc OPPOSITE the plane  of  the articulations; it seems to us that this would cause mechanical conflict at the metatarsophalangeal joints; the distal ones seem more appropriate, but the ones anterior to that serve to abduct the phalanges.

Summary:

In a nutshell ? We are sure this is a supercomfy foot spa that feels like walking on marshmallows but we question the science behind the design and would welcome the opportunity to review their research or even to trial a pair.

We think you will find that what we  have addressed here merit some attention by everyone.  As we always say though, every product has some uses and purpose, but also some drawbacks.  Do your own homework though, go to their website…… http://www.hokaoneone.com/en/technology.html

Once again, We are and remain,…… The Gait Guys