The Gait Guys Podcast

Latest Episodes:

Pod 144: Grounded running, Glute fatigue & Stress Fractures Feb 16, 2019

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

Podcast 143: Future of movement, Running Cadence and more. Jan 19, 2019

Show notes

The future of human movement control ? https://www.zerohedge.com/news/2019-01-01/zuckerberg-funds-wireless-mind-control-using-game-changing-brain-implants

Really interesting study: in-race cadence data from world 100K champs. Fatigue matters less than expected; https://www.outsideonline.com/2377976/stop-overthinking-your-running-cadence?utm_medium=social&utm_source=twitter&utm_campaign=onsiteshare

A new study shows a majority (82%) of adolescent patients presenting with FAI syndrome can be managed nonoperatively, with significant improvements in outcome scores at a mean follow-up of two years: ow.ly/GXtC30n49nc pic.twitter.com/dyr4f6pEOU

Gait Rehab https://academic.oup.com/ptj/article/88/12/1460/2742171 " Rehabilitation of gait in PSP should also include oculomotor training because the ability to control eye movements is directly related to the control of gait and safe ambulation. Vision plays a critical role in the control of locomotion because it provides input for anticipatory reactions of the body in response to constraints of the environment. Anticipatory saccades occur normally in situations that involve changing the direction of walking17 or avoiding obstacles.18 When downward saccades are not frequently generated during obstacle avoidance tasks, there is an increase in the risk for falling. Di Fabio et al19 reported that elderly people at a high risk for falling generated fewer saccades than their low-risk counterparts during activities involving stepping over obstacles. In addition, foot clearance trajectories were asymmetric in the high-risk group, with the lag foot trajectory being significantly lower than the lead foot trajectory. Similar behavior has been observed in patients with PSP during stair-climbing activities. Di Fabio et al20 recently reported that patients with severe oculomotor limitations had a lower lag foot trajectory than those with mild oculomotor limitations. "

Eye movements: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4932064/ " The content of the eye movement program was as follows: First, a picture card was shown to the patient, and then mixed with 20 other cards and spread face up on the desk. The patient was instructed to find that one card. This task was repeated approximately 20 times. Second, the therapist moved a baton slowly while drawing curves and the patient was instructed to keep his or her gaze fixed on the tip of the baton. In this task, the distance between the baton and the patient was maintained at approximately 1 m and the task was performed for approximately five minutes. Third, the patient was instructed to shake his or her head laterally as quickly as possible and a letter card with letters written upside down was presented to the patient to read. This task was repeated approximately 10 times. Fourth, the therapist moved a baton slowly from a point approximately 5 cm away from the patient to a point approximately 50 cm away and the patient was instructed to keep his or her eyes on the baton. This task was performed for approximately five minutes. The experimental group underwent eye movement training while the control group underwent gait training for 20 minutes per session, five times per week for six months in total."

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3259492/

Plantar fascia loads higher when forefoot striking . . . . https://www.sciencedirect.com/science/article/pii/S0021929018308959 Foot arch deformation and plantar fascia loading during running with rearfoot strike and forefoot strike: A dynamic finite element analysis Tony Lin-WeiChen et al

High pronation was associated with 20-fold higher odds of injury than neutral foot posture Association between the Foot Posture Index and running related injuries: A case-control study AitorPérez-Morcillo et al https://www.sciencedirect.com/science/article/pii/S0268003318304303

Podcast 142: Running in Circles? How your brain manipulates the body parts to get us to run straight. Dec 15, 2018

Show notes

Visual targeting during running. How we manage to run in a straight line when we clearly should be running in circles.

1. How exercise reprograms the brain: https://www.the-scientist.com/features/this-is-your-brain-on-exercise-64934 2. The influence of prolonged running and footwear on lower extremity biomechanics Gillian Weir , Carl Jewell, Hannah Wyatt , Matthieu B. Trudeau, Eric Rohr, Gert-Peter Brüggemann & show all Received 20 Aug 2018, Accepted 18 Oct 2018, Published online: 20 Nov 2018 https://www.tandfonline.com/doi/abs/10.1080/19424280.2018.1539127?tokenDomain=eprints&tokenAccess=mWfmhgSBXzETDAAhnAbk&forwardService=showFullText&doi=10.1080%2F19424280.2018.1539127&doi=10.1080%2F19424280.2018.1539127&journalCode=tfws20 3. New study: the thick foam midsole in Nike's Vaporfly 4% shoe stores and returns ~45 times more energy per stride than the bending of the carbon fiber plate. https://www.outsideonline.com/2367961/how-do-nikes-vaporfly-4-shoes-actually-work?utm_medium=social&utm_source=twitter&utm_campaign=onsiteshare

Podcaset 141: A deep dive podcast ( (lots of random gait and running thoughts). Nov 24, 2018

Show notes

Topics:

strength, asymmetry, gait, thegaitguys, gaitanalysis, achilles, windlass mechanism 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

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

Topics and links:

A new neuron has been discovered and named. The rosehip cell https://www.wired.com/story/meet-the-rosehip-cell-a-new-kind-of-neuron/ Strength does matter in our opinion, especially when it is stacked onto asymmetry and dysfunction. https://www.ncbi.nlm.nih.gov/pubmed/26566993 Am J Sports Med. 2016 Jan;44(1):105-12. doi: 10.1177/0363546515611632. Epub 2015 Nov 13. Is Hip Abduction Strength Asymmetry Present in Female Runners in the Early Stages of Patellofemoral Pain Syndrome? Plastaras C1, McCormick Z2, Nguyen C3, Rho M2, Nack SH2, Roth D4, Casey E5, Carneiro K6, Cucchiara A1, Press J2, McLean J7, Caldera F8. Positive Work Contribution Shifts from Distal to Proximal Joints during a Prolonged Run SANNO, MAXIMILIAN1,2; WILLWACHER, STEFFEN1,3; EPRO, GASPAR1,4; BRÜGGEMANN, GERT-PETER1,2,3 Medicine & Science in Sports & Exercise: December 2018 - Volume 50 - Issue 12 - p 2507–2517 https://journals.lww.com/acsm-msse/Citation/2018/12000/Positive_Work_Contribution_Shifts_from_Distal_to.16.aspx

Influence of the windlass mechanism on arch-spring mechanics during dynamic foot arch deformation Lauren Welte, Luke A. Kelly, Glen A. Lichtwark, Michael J. Rainbow Published 15 August 2018.DOI: 10.1098/rsif.2018.0270 http://rsif.royalsocietypublishing.org/content/15/145/20180270 Med Sci Sports Exerc. 2018 Dec;50(12):2500-2506. doi: 10.1249/MSS.0000000000001710. Reducing Impact Loading in Runners: A One-Year Follow-up. Bowser BJ1, Fellin R2, Milner CE3, Pohl MB4, Davis IS5. https://www.ncbi.nlm.nih.gov/pubmed/29975300/ Achilles tendon structure differs between competitive distance runners and nonrunners despite no clinical signs or symptoms of midsubstance tendinopathy Todd J. Hullfish,Kenton L. Hagan, Ellen Casey, Josh R. Baxter 09 Aug 2018https://doi.org/10.1152/japplphysiol.00012.2018 https://www.physiology.org/doi/abs/10.1152/japplphysiol.00012.2018 Our obligatory disclaimer: This podcast is for general informational purposes only. It does not constitute the practice of medicine, nursing, rehab, treatment, therapy recommendations or anything of the sort. This podcast should not replace proper medical advise that should only be attained through proper medical channels that would entail a full medical and/or biomechanical physical examination and/or appropriate diagnostic testing. No doctor-patient relationship is formed by listening to this podcast or any information gleaned from our writings or social media work. The use of this information and the materials linked to the podcast is taken at the users own risk. This podcast and the content shared is not intended to replace or be a substitute for appropriate professional medical advise diagnosis or treatment. Users should not disregard or delay obtaining medical advice for any condition they have and should seek the advice and assistance from their providers for any such conditions.

Podcast #140: Running, hallux amputation, building deeper gait concepts. Oct 06, 2018

Show notes

Topics:

achilles tendon, achilles tendinopathy, rehab achilles, bursae, marathons, vapourfly, shoes, shoe fit, gait, gait problems, gait correction, gait retraining, running, foot strike, heel strike, midfoot strike, rearfoot strike, heel strike, loading responses, gait rehab, muscle strength, isotonics 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

doctorallen.co

summitchiroandrehab.com

Topics and links:

The tendinopathic Achilles tendon does not remain iso-volumetric upon repeated loading: insights from 3D ultrasound. Nuri L, et al. J Exp Biol. 2017. https://www.ncbi.nlm.nih.gov/m/pubmed/28620014/

Good tip to decrease loading and help decrease injury risk in runners: See study by Chan et al.: http://journals.sagepub.com/doi/abs/10.1177/0363546517736277?url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org&rfr_dat=cr_pub%3Dpubmed&

Vapourfly shoe https://www.nytimes.com/interactive/2018/07/18/upshot/nike-vaporfly-shoe-strava.html

Men's marathon: https://twitter.com/chrisbramah/status/1019481750039343104/photo/1

fun facts: Foot strike patterns of the World Championships Marathon: Women's race: 73% rearfoot, 24% midfoot, 3% forefoot Men's race: 67% rearfoot, 30% midfoot, 3% forefoot pic.twitter.com/iWRzjImQBZ https://www.iaaf.org/about-iaaf/documents/research#biomechanical-research-projects

Foot structure and stiffness is critical https://www.nature.com/articles/srep29870

Tendons can change Progressive calf strength training led to increased achilles stiffness @ 4 weeks & increased tendon cross sectional area @ 8 weeks https://link.springer.com/article/10.1007/s00421-018-3904-1

Bursae can thicken painlessly as a normal adaption to activity... just like skin calluses! https://www.ncbi.nlm.nih.gov/pubmed/24907190

Between 63-72% of participants were wearing incorrectly sized footwear. review of the literature here from @LTPodiatry team: https://jfootankleres.biomedcentral.com/articles/10.1186/s13047-018-0284-z

How Neuroscientists Explain the Mind-Clearing Magic of Running -- from the Science of Us https://www.huffingtonpost.com/science-of-us/how-neuroscientists-expla_b_9787466.html

Podcast 139: STEM and PRP therapies for athletes Sep 22, 2018

Show notes

Topics:

STEM &PRP therapies for athletes plus discussions on types of muscle contraction, and what exactly happens when we "activate" a muscle.

We are all over the board today folks, topics like PRP but more so we go down some paths that are more fundamentally clinical and neurologic with a sprinkling of orthopedics to round things out. Sometimes these are our best shows. Links to find the podcast:

Look for us on iTunes, Google Play, Podbean, PlayerFM and more. Just Google us. Our Websites: www.thegaitguys.com

doctorallen.co

summitchiroandrehab.com

Podcast 138 (for real). Are you fighting your own gait/running neurology? Aug 29, 2018

Show notes

1. Running with the extensors. Convergence and divergence of neurons. 2. fighting your gait neurology. The lies about the Bird dog rehab exercise. 3. ACL and ACL rehab. Surgery or no sugery. Wise? Risks ? 4. Cross over gait and lateral heel strike and ensuing problems at great toe off. A failure to medial foot tripod high gear toe off ? 5. Are the hip flexors actually hip flexors in gait ? what are your high knee drills doing? Anything good?

Key words: extensor pools, gait, gait analysis, gait problems, running, ACL surgery, PLRI, knee instability, cross over gait, hip flexors, heel strike

Links to find the podcast:

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

Our Websites: www.thegaitguys.com

summitchiroandrehab.com

doctorallen.co

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.

Podcast Shorts: 137.2 Random neuro thoughts on gait Aug 27, 2018

Show notes

This is a small clip from podcast 137. For the full podcast, head over to our website or iTunes or anywhere that you choose to download your podcasts.

Key words: neurology, gait, gait analysis, thegaitguys,. motor patterns, spinal cord, nuclei, spinal cord tracts

Links to find the podcast:

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

Our Websites: www.thegaitguys.com

summitchiroandrehab.com doctorallen.co shawnallen.net

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

Podcast Shorts # 137.1 Arm Swing in Sport Aug 27, 2018

Show notes

This is a small clip on arm swing from podcast 137. For the full podcast, head over to our website or iTunes or anywhere that you choose to download your podcasts.

Key words: arm swing, gait analysis, gait,

Our Websites: www.thegaitguys.com

summitchiroandrehab.com doctorallen.co shawnallen.net

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

Podcast 137: Running: Limitations in thoracic spine function matter. Jul 30, 2018

Show notes

We cover many aspects of human movement on this podcast, the topics are broad ranging on today's show, but they are worthy of your time in our opinion.

Key words: arm swing, thoracic extension, scapular retraction, arch height, rear foot posting, forefoot loading, ankle dorsiflexion, ankle rocker, shoulder extension, SSEP, F-wave, EMG/NCV testing, gait ataxia

Here are some key quotes from today's show:

You may have the range of motion, but are you actually able to use it? You haven't truly injured yourself, you've just lost your ability to compensate.

And we discuss a case study today, where the following paragraph is germane.

"Abnormal gait changes might be the first signs of an early slow cooking neurologic disorder. Most, not all, pathology is afferent, yet most (not all) EMG/NCV testing is geared towards the efferent pathology (motor end organ disease, not sensory compromise), hence, testing can miss your client's pathology. We discuss a classic case where the client clearly had the beginnings of a neurologic disorder on our exam (clonus and joint position sense changes and clear ataxic gait) yet the testing "that was done" showed a normal study of this client. Much pathology is afferent, the input is the problem, so you need to consider requesting Sensory nerve action potentials, SSEP and F-wave testing, because they are difficult to elicit and good technique is paramount. Hence these extra components of the test are not done, and you need to ask for this in your testing. "Maybe it's not there because you are not looking". We have much more on this topic, come listen to Podcast 138 and get the full monty."

Our Websites: www.thegaitguys.com

summitchiroandrehab.com doctorallen.co shawnallen.net

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

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