Pod 144: Grounded running, Glute fatigue & Stress Fractures

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Topics: Grounded running, Glute fatigue, Stress Fractures, Duty Factor, Ankle stiffness & Gait and Concussions

Keywords: gait, gait analysis, gait problems, running, ankle, band, concussions, fatigue, fracture, gait, glutes, grounded, gait guys, glute medius, problems, stiffness, stress, syndrome, time under tension

Links to find the podcast:
Look for us on iTunes, Google Play, Podbean, PlayerFM and more.
Just Google "the gait guys podcast".

Our Websites:
www.thegaitguys.com
Find Exclusive content at: https://www.patreon.com/thegaitguys
doctorallen.co
summitchiroandrehab.com
shawnallen.net

Our website is all you need to remember. Everything you want, need and wish for is right there on the site.
Interested in our stuff ? Want to buy some of our lectures or our National Shoe Fit program? Click here (thegaitguys.com or thegaitguys.tumblr.com) and you will come to our websites. In the tabs, you will find tabs for STORE, SEMINARS, BOOK etc. We also lecture every 3rd Wednesday of the month on onlineCE.com. We have an extensive catalogued library of our courses there, you can take them any time for a nominal fee (~$20).

Our podcast is on iTunes and just about every other podcast harbor site, just google "the gait guys podcast", you will find us.

Where to find us, the podcast Links:

iTunes page:
https://itunes.apple.com/us/podcast/the-gait-guys-podcast/id559864138?mt=2

Google Play:
https://play.google.com/music/m/Icdfyphojzy3drj2tsxaxuadiue?t=The_Gait_Guys_Podcast

Direct download URL: http://traffic.libsyn.com/thegaitguys/pod_147_raw_-_21619_11.08_AM.mp3

Permalink URL: http://thegaitguys.libsyn.com/pod-144-grounded-running-glute-fatigue-stress-fractures

Libsyn Directory URL: http://directory.libsyn.com/episode/index/id/8666903

Show notes:

Hip muscle response to a fatiguing run in females with iliotibial band syndrome.
Brown AM1, Zifchock RA2, Lenhoff M3, Song J4, Hillstrom HJ3.
Hum Mov Sci. 2019 Feb 8;64:181-190. doi: 10.1016/j.humov.2019.02.002. [Epub ahead of print]

Balance and Gait Alternations Observed More than 2 Weeks after Concussion: A Systematic Review and Meta-analysis.
Wood TA1, Hsieh KL1, An R1, Ballard RA2, Sonoff JJ1.
Am J Phys Med Rehabil. 2019 Feb 5. doi: 10.1097/PHM.0000000000001152. [Epub ahead of print]

Does Running Faster Put You at Greater Risk of a Stress Fracture?
New research finds that speed might not cause as much strain on the shins as we thought
By Hailey Middlebrook
Feb 12, 2019
https://www.runnersworld.com/health-injuries/a26221848/stress-fracture-speed-study/

Fast Running Does Not Contribute More to Cumulative Load than Slow Running\
Hunter, Jessica G.1; Garcia, Gina L.1; Shim, Jae Kun1,2,3; Miller, Ross H.1,2
Medicine & Science in Sports & Exercise: January 25, 2019

https://journals.lww.com/acsm-msse/Pages/articleviewer.aspx?year=9000&issue=00000&article=96699&type=Abstract


Grounded running Reduces Musculoskeletal Loading.
https://www.ncbi.nlm.nih.gov/pubmed/30480615
Med Sci Sports Exerc. 2018 Nov 21
Bonnaerens S1, Fiers P1, Galle S1, Aerts P1,2, Frederick EC3, Kaneko Y4, Derave W1, De Clercq D1.

Duty factor:
duty-factor. The duration of a gait cycle where each foot is on the ground
https://www.researchgate.net/figure/Illustration-of-the-duty-factor-The-duration-of-a-gait-cycle-where-each-foot-is-on-the_fig2_221908232

Ankle intrinsic stiffness changes with postural sway
PouyaAmiri, Robert E.Kearney
https://www.sciencedirect.com/science/article/pii/S0021929019300387


Concussions and increased risk for musculoskeletal injury.

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Concussion Increases Odds of Sustaining a Lower Extremity Musculoskeletal Injury After Return to Play Among Collegiate Athletes. -Brooks et al.

Perhaps we need to be paying far more attention to the musculoskeletal injuries in our contact sport athletes. We need to bring to light some important facts to our athletes (and their parents!).

From the Nauman Purdue football study:
"The worst hit we've seen was almost 300 Gs," Nauman said. A soccer player "heading" a ball experiences an impact of about 20 Gs." 
Here is what we say: now add 20 soccer headers in a week of game and practice. Or take 20 submaximal football tackles, in a week of game and practice. You do the math.

Concussions have been now shown to cause abnormalities in brain and motor functioning. These issues can last long after perceived clinical recovery. "Recent work suggests subtle deficits in neurocognition may impair neuromuscular control and thus potentially increase risk of lower extremity musculoskeletal injury after concussion."
Do NOT underestimate the impacts of a single concussion, and certainly NEVER in a second impact (Second Impact Syndrome (SIS)). SIS can at worst, lead to death within minutes, so certainly it can lead to impaired neuromuscular control. Our current society continues to ignore the immense long lasting effects of head injuries, even minimal ones. We continue to allow young developing brains to partake in football, soccer, and other jarring sports. Yes, we cannot live in a vacuum, but we can live in awareness and wise choices.

Facts: 
The 2 year Purdue Study of high school football players suggested that concussions are likely caused by many hits over time and not from a single blow to the head, as previously believed. "Over the two seasons we had six concussed players, but 17 of the players showed brain changes even though they did not have concussions," Talavage said. "The most important implication of the new findings is the suggestion that a concussion is not just the result of a single blow, but it's really the totality of blows that took place over the season," said Eric Nauman. "Most clinicians would say that if you don't have any concussion symptoms you have no problems," said Larry Leverenz, an expert in athletic training and a clinical professor of health and kinesiology. "However, we are finding that there is actually a lot of change, even when you don't have symptoms."

"New research into the effects of repeated head impacts on high school football players has shown changes in brain chemistry and metabolism even in players who have not been diagnosed with concussions and suggest the brain may not fully heal during the offseason."-Emil Venere
"We are finding that the more hits you take the more you change your brain chemistry, the more you change your brain's ability to move blood to the right locations," Nauman said.

'Deviant brain metabolism' found in high school football players. 
http://www.purdue.edu/…/deviant-brain-metabolism-found-in-h…

Biomechanical Correlates of Symptomatic and Asymptomatic Neurophysiological Impairment in High School Football
Evan L. Breedlove, BS1,Thomas M. Talavage, PhD2,3,Meghan Robinson, BS2, Katherine E. Morigaki, MS ATC4,Umit Yoruk, BS3, Larry J. Leverenz, PhD ATC4 , Jeffrey W. Gilger, PhD5, Eric A. Nauman, PhD1,2,6

http://www.ncbi.nlm.nih.gov/pubmed/26786903

Podcast 58: Brain Mapping Injuries, Muscle Activation & Sleep

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The intricacies of how the brain maps a compensation pattern.

A. Link to our server:

Direct Download: 

http://traffic.libsyn.com/thegaitguys/pod_58f.mp3

Permalink: 

http://thegaitguys.libsyn.com/podcast-58-brain-mapping-injuries-muscle-activation-sleep

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”

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Today’s Show notes:
Neuroscience pieces:
1. Gait Posture. 2013 Jul;38(3):549-51. doi: 10.1016/j.gaitpost.2013.02.008. Epub 2013 Mar 11.

Altered gait termination strategies following a concussion.

2. lack of sleep, brain damage……… honor  your recovery days and as importantly, honor the things that make you a better runner, that includes sleep !!!!!

4. New minimalist casual shoes:

Zed’s
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The Gait Guys indirect link to Sidney Crosby of the NHL and his head trauma.

So, how did the Gait Guys get so smart ? Both Dr. Allen and Dr. Ivo studied in the field of chiropractic neurology. Dr. Ivo had the wonderful opportunity to study directly under Dr. Carrick for several years. Dr.Carrick is the leader in the field of functional neurology. Dr Ivo studied under the best out there. Dr. Ivo is a diplomate of the chiropractic neurology board, one of the most challenging diplomates to attain.

Most recently Dr. Carrick was asked to evaluate and treat Sidney Crosby arguably the best player in the NHL.  EVeryone was failing on helping Sidney, until Dr. Carrick was begged to come into the picture to help. 

Here is an awesome press conference with Dr. Carrick’s talk starting at 7:40 into the press conference. Enjoy

The Gait Guys, ……. Ivo and Shawn……. not your average doctors.