Pod #100: Hill Running + Cortical Brain Changes in Injuries

Pod #100  Hill Running + Cortical Brain Brain Changes in Injuries, Plus leg length challenges, Sole vs Heel lifts, Varying your Running Surface, Frontal plane biomechanics, Baker Cyst and Popliteal Muscle problems and more !

Show Sponsors:  
topoathletic.com
rocktape.com

Other Gait Guys stuff

A. Podcast links:

direct download URL: http://traffic.libsyn.com/thegaitguys/pod_100f.mp3

permalink URL: http://thegaitguys.libsyn.com/podcast-100-hill-running-cortical-brain-brain-changes-in-injuries

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:

1 Cortical change in chronic low back pain

http://www.anatomy-physiotherapy.com/articles/other/nervous/1329-cortical-change-in-chronic-low-back-pain
-Chronic low back pain is characterised by a range of structural, functional and neurochemical changes within the brain. Functional changes in individuals with chronic low back pain are reflected in a cortical reorganization, altered cortical activity and altered cortical responsiveness.

2  Lifting weights can change the brain
http://www.techvibes.com/blog/lifting-weights-can-beneficially-change-structure-of-brain-2015-10-27

3  Importance of varying running surfaces
http://triathlon.competitor.com/2015/05/training/importance-varying-running-surfaces_100995

4  Emergence of postural patterns as a function of vision and translation frequency.
http://www.ncbi.nlm.nih.gov/pubmed/10322069
J Neurophysiol. 1999 May;81(5):2325-39.
Our results suggest that visual information was important to maintaining a fixed position of the head and trunk in space, whereas proprioceptive information was sufficient to produce stable coordinative patterns between the support surface and legs.     *The CNS organizes postural patterns in this balance task as a function of available sensory information, biomechanical constraints, and translation frequency.

5  Previous hamstring injury is associated with altered kinematics.
“Previously injured athletes demonstrated significantly reduced biceps femoris muscle activation ratios with respect to ipsilateral gluteus maximus, ipsilateral erector spinae, ipsilateral external oblique, and contralateral rectus femoris in the late swing phase. We also detected sagittal asymmetry in hip flexion, pelvic tilt, and medial rotation of the knee effectively putting the hamstrings in a lengthened position just before heel strike.”

The biomechanics of running in athletes with previous hamstring injury: A case-control study. C. Daly1, U. McCarthy Persson2, R. Twycross-Lewis1, R. C. Woledge1,† andD. Morrissey1,

Podcast #18: Treadmills, ‘Shrooms & Santa

If you do not split a gut laughing by the time the band plays there is something wrong with you ! Who says gait stuff isn’t entertaining !
Perhaps our best podcast to date ? You decide.

Permalink URL
http://thegaitguys.libsyn.com/pod-18-treadmills-shrooms-santa

itunes link:

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

Topics: Treadmills, neuroreceptors, foot types, hip biomechanixcs, gait cycle

Neuroscience piece link:

http://www.cannabisculture.com/articles/3136.html

1. from Eric on our FB page:

a. Had a 9yr old girl for a shoe fitting recently. She had a forefoot valgus, with a rearfoot that is neutral or slightly varus. Fairly high arch and rigid Midfoot for a child that age as well. usually a child’s foot is super flexible so this makes me wonder if it’s a compensation for a true FF varus. How do I tell if he has an anatomic FF valgus vs a compensated version?

b. I asked Blaise Dubois his opinion on Treadmill vs outdoor running and he mentioned that the literature indicates TM’s aren’t much different than outdoor. He cites (Wank 1998). To me, running feels completely different and I can’t run nearly as efficiently on a TM as outdoor. i know some people are the opposite, which i subscribe to specificity of training.

the question i have is what basis do you use for your opinion on different motor patterns? i agree with you, but the literature seems to disagree. this is a piece from cybex so of course it will be “pro-treadmill”, but they quote several studies that concur with Wank… http://media.cybexintl.com/cybexinstitute/research/Truth_on_Fit_Apr10.pdf

hope i’m not sending too many questions. i figure you can ignore them if you have too many from other listeners.

http://media.cybexintl.com/cybexinstitute/research/Truth_on_Fit_Apr10.pdf
media.cybexintl.com
2. On the Hip Bio Pt 6 you mention ext rot leg to gain leg length.  This one has been racking my brain.  I could see how this could happen if the person supinates the foot at the same time, but is there some other external rotating mechanism occurring in the hip that would cause this lengthening?  Thanks,Ryan

___________

Hi Gait Guys,

I am a chiropractor in South Africa, and find gait, biomechanics and running fascinating…I’m hoping to become a true gait geek one day.Reading your blog has taught me so much, you guys seem to look at gait from every angle and don’t take things at face value.

I would like to find out about your Shoe Fit Certification Program. Can people from outside the USA complete the course? Would I be able to take the exam online? and would it give me any creditation in South Africa

 Hope to hear from you soon.

 Regards, Claire

3. I have been watching your video’s on you tube.  I have a cavus foot in which I have had severe nerve pain, why is the high arch caused by nerve pain?

And would any of your exercises help with my nerve pain

Thanks,Wendy

___________
4. Hi guys,
Found your youtube channel. Very interesting stuff. Have started reading up on the whole gait cycle. Its very interesting.
I have a quick question that I hope that you can help me with:
Are you aware of any correlation of hip impingement (cam/pincer) in terms of having an irregular gait cycle?
I am suffering from both CAM & PINCER impingement in my right hip. Had surgery in January, but they did not shave sufficiently off the bone, so going back to surgery soon.
I am therefore interested in seeing how surgery possible could help me with bettering my walk and strain on my lower back / leg / foot. And also in terms of looking into some theory on how to retrain myself in walking cycles.
The problem is, that this kind of rehab/research is not available here in Denmark. So would appreciate if you are aware of any research on the above, and would be able to point me in the direction of that.
Thank you – and keep those great videos coming. 🙂
Best,
Terje (Denmark)