Podcast 81: Gait, critical, pure and essential principles

This week’s show sponsors: 

www.newbalancechicago.com

www.lemsshoes.com

A. Link to our server: 

http://traffic.libsyn.com/thegaitguys/pod_81f.mp3

Direct Download: 

http://thegaitguys.libsyn.com/podcast-81-gait-critical-pure-and-essential-principles

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:

Show Sponsors:
 

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

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

* Other web based Gait Guys lectures:

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

 
Show Notes and links:
 
Forget Cheetah Blades. This Prosthetic Socket Is a Real Breakthrough
http://www.wired.com/2014/10/forget-cheetah-blades-prosthetic-socket-real-breakthrough
 
Rebuilding and Regenerating Damaged Knees: The Future Has Arrived!
http://www.huffingtonpost.com/nicholas-dinubile-md/rebuilding-and-regenerati_b_6043374.html
 
the foot gym:
 
From a reader:
Thanks for sharing all the great information over the years. I would like to pose to you some simple questions. How do you decide what area/s are relevant to the issue a patient presents? How do you decide what is “normal” given anatomical variations, history of injuries, torsion’s, etc., and if pain is present, why would you address biomechanics, since pain is a neurological phenomenon not a biomechanical phenomenon?
This may not be that simple but would like to hear what you have to say on these topics.
Thank you,
Joe 
 
COMPARISON OF ISOMETRIC ANKLE STRENGTH BETWEEN FEMALES WITH AND WITHOUT PATELLOFEMORAL PAIN SYNDROME
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4196327/

 
the drawbacks of technology

Podcast 79: Tightness vs. Shortness, Plantar Fascitis & more.

plus, pelvic asymmetry, “wearables” and cognitive choices in movement.

This week’s show sponsors: 

www.newbalancechicago.com

www.lemsshoes.com

A. Link to our server: 

http://traffic.libsyn.com/thegaitguys/pod_79f.mp3

Direct Download: 

http://thegaitguys.libsyn.com/podcast-79

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:

The Brain and your choices.

http://exploringthemind.com/the-mind/brain-scans-can-reveal-your-decisions-7-seconds-before-you-decide#.VCx0P8ydUK4.facebook

 
 
Walking is the superfood of fitness, experts say
 
Hey Guys,
I have pelvis asymmetry and a snapping ankle, can you help me with … . 
 
New research on Plantar Fascitis
 
John from FB
Shortness vs tightness:
What protocol do you recommend for stretching ? I usually do static stretches1x2min. This article has the static stretch group doing 10x30sec. I’d have to set my alarm a half hour earlier! 🙂

Podcast 79: Tightness vs. Shortness, Plantar Fascitis & more.

plus, pelvic asymmetry, “wearables” and cognitive choices in movement.

This week’s show sponsors: 

www.newbalancechicago.com

www.lemsshoes.com

A. Link to our server: 

http://traffic.libsyn.com/thegaitguys/pod_79f.mp3

Direct Download: 

http://thegaitguys.libsyn.com/podcast-79

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:

The Brain and your choices.

http://exploringthemind.com/the-mind/brain-scans-can-reveal-your-decisions-7-seconds-before-you-decide#.VCx0P8ydUK4.facebook

 
 
Walking is the superfood of fitness, experts say
 
Hey Guys,
I have pelvis asymmetry and a snapping ankle, can you help me with … . 
 
New research on Plantar Fascitis
 
John from FB
Shortness vs tightness:
What protocol do you recommend for stretching ? I usually do static stretches1x2min. This article has the static stretch group doing 10x30sec. I’d have to set my alarm a half hour earlier! 🙂

Podcast 78: Step Width Gait, Training Asymmetries & more

Show sponsors: 

www.newbalancechicago.com

www.lemsshoes.com

A. Link to our server: 

http://traffic.libsyn.com/thegaitguys/pod_78ff.mp3

Direct Download: 

http://thegaitguys.libsyn.com/podcast-78

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:

24-year-old woman missing entire cerebellum exemplifies the amazing power of brain plasticity

Brain scans reveal ‘gray matter’ differences in media multitaskers

Who are we: Ivo talk a bit about yourself and your educational history and what is your website ?
Shawn…..do the same
and……lets keep each interesting but to just a few minutes
Effect of step width manipulation on tibial stress during running
Does Limited Internal Femoral Rotation Increase Peak Anterior Cruciate Ligament Strain During a Simulated Pivot Landing?
http://ajs.sagepub.com/content/early/2014/09/22/0363546514549446.abstract
Quadriceps Muscle Function After Exercise in Men and Women With a History of Anterior Cruciate Ligament Reconstruction
http://natajournals.com/doi/abs/10.4085/1062-6050-49.3.46

A profound loss of hip extension…

While sitting on the beach, our mind never rests. Even when on vacation we continue to watch how people move.

Luckily today, I had the gait cam (Dr Allen is holding down the Gait Guys Fort), so live from Sunset Beach, it’s Sunday night. See of you can see what I saw.

Sitting with my wife and watching the kids dig in the sand, this gal with the flexed posture caught my eye.

Why is she so flexed forward? The profound loss of hip extension made it impossible for her to stand up straight! It was difficult to say if she has bilateral hip osteoarthritis, or possible bilateral THR’s (total hip replacements), maybe just really tight hip flexors, painful bunions that do not like toe off, or even all of the above. She may have a leg length discrepancy, as she leans to the left on left stance phase; of course she could have weak hip abductors on the left. It does not appear she has good control of her core.

What do we see?

  • flexion at the waist
  • loss of hip extension
  • body lean to left at left midstance
  • shortened step length
  • loss of ankle rocker
  • premature heel rise
  • decreased arm swing (she is carrying something in her left hand)

No one is safe from the gait cam! Stay tuned for more beach footage this week!

We remain, The Gait Guys, even on vacation.

The Power of Facilitation: How to supercharge your run.

While running intervals this crisp, cool 19 degree morning, something dawned on me. My left knee was hurting from some patellar tracking issues, but only on initial contact and toe off. I generally run with a midfoot strike. I began concentrating on my feet, lifted and spread my toes and voila! my knee pain instantly improved. Very cool, and that is why I am writing this today. 

Without getting bogged down in the mire of quad/hamstring facilitation patterns, lets look at what happened.

I contracted the long extensors of the toes: the extensor digitorum longus and the extensor hallicus longus; the short extensors of my toes: the extensor digitorum brevis, the extensor hallucis brevis: as well as the dorsal interossei.the peroneus longus, brevis and tertius were probably involved as well.

Do you note a central theme here? They are all extensors. So what, you say. Hmmm… 

Lets think about this from a neurological perspective:

In the nervous system, we have 2 principles called convergence and divergence. Convergence is when many neurons synapse on one (or a group of fewer) neuron(s). It takes information and “simplifies” it, making information processing easier or more streamlined. Divergence is the opposite, where one(or a few) neurons synapse on a larger group. It takes information and makes it more complicated, or offers it more options.

In the spinal cord, motor neurons are arranged in sections or “pools” as we like to call them in the gray matter of the cord. These pools receive afferent information  and perform segmental processing (all the info coming in at that spinal cord segment) before the information travels up to higher centers (like the cerebellum and cortex). One of these pools fires the extensor muscles and another fires the flexor muscles.. 

If someone in the movie theater keeps kicking the back of our seat, after a while, you will say (or do) something to try and get them to stop. You have reached the threshold of your patience. Neurons also have a threshold for firing.  If they don’t reach threshold, they don’t fire; to them it is black and white. Stimuli applied to the neuron either takes them closer to or farther from threshold.  When a stimulus takes them closer to firing, we say they are “facilitating” the neuron. If it affects a “pool” of neurons, then that neuronal pool is facilitated. If that pool of neurons happens to fire extensor muscles, then that “extensor pool” is facilitated.

When I consciously fired my extensor muscles, two things happened: 1. Through divergence, I sent information from my brain (fewer neurons in the cortico spinal pathway) to the motor neuron pools of my extensor muscles (larger groups of motor neurons) facilitating them and bringing them closer to threshold for firing and 2. When my extensor muscles fired, they sent that information (via muscle spindles, golgi tendon organs, joint mechnoreceptors, etc) back to my cerebellum, brain stem and cortex (convergence) to monitor and modulate the response.

When I fired my extensor muscles, I facilitated ALL the neuronal pools of ALL the extensors of the foot and lower kinetic chain. This was enough to create balance between my flexors and extensors and normalize my knee mechanics.

If you have followed us for any amount of time, you know that it is often “all about the extensors” and this post exemplifies that fact.

 Next time you are running, have a consciousness of your extensors. Think about lifting and spreading our toes, or consciously not clenching them. Attempt to dorsiflex your ankles and engage your glutes. It just may make your knees feel better!

The Gait Guys. Facilitating your neuronal pools with each and every post.

All material copyright 2013 The Gait Guys/ The Homunculus Group. All rights reserved. If you rip off our stuff, we will send Lee after you!