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thegaitguys · 3 years

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Leg exercise is critical to brain and nervous system health: Clues into why motorneuron diseases decline so quickly.

Leg exercise is critical to brain and nervous system health "New research shows that using the legs, particularly in weight-bearing exercise, sends signals to the brain that are vital for the production of healthy neural cells." This research supports what we already know, but in a new spin, that sensory input is just as important as motor output. This study gives new clues into why people with motorneuron diseases (spinalmuscular atrophy etc) decline so quickly as their movement impairment deepens. This research might suggest that those who do not continue to weight bear load, such as bedridden or chronically ill patients and even the aging population, are at risk for faster decline. "Not only (do they) lose muscle mass, but their body chemistry is altered at the cellular level and even their nervous system is adversely impacted," says Dr. Raffaella Adami from the Università degli Studi di Milano, Italy. "Limiting physical activity decreased the number of neural stem cells by 70 percent compared to a control group of mice, which were allowed to roam. Furthermore, both neurons and oligodendrocytes -- specialized cells that support and insulate nerve cells -- didn't fully mature when exercise was severely reduced." "Reducing exercise also seems to impact two genes, one of which, CDK5Rap1, is very important for the health of mitochondria -- the cellular powerhouse that releases energy the body can then use. This represents another feedback loop." Bottom line here folks, you have to move, you have to load, especially if you have a neurologic disorder and especially if you are declining in age. At the very least, throw some lunges or body weight squats into your day. Walk the stairs, don't ride the elevator. Move. Lift. Strain. https://www.sciencedaily.com/rel.../2018/05/180523080214.htm the gait guys, shawn & Ivo #gait, #gaitproblems, #exercise, #legstrength, #squats, #lunges, #neuronhealth, #SMA, #neurologicdisease

#gait #thegaitguys #motorneuron disease #SMA #leg exercises #running #runners injuries #walking

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fromthefeetupsportsclinic · 7 years

Video

Kick ass exercise #13 -Zombie shuffle ( gotta give these a cool name so clients remember them ). Great intermediate home exercise for improving dorsiflexion of the ankle and foot intrinsics to help with gait after quality of ankle and foot motor control has been established. #plantarfasciitis #dorsiflexion #ankle #footintrinsicexercise #footstrengthening #footintrinsics #arch #injury #injuryrehab #injuryrecovery #injuryprevention #zombie #shuffle #gait #thegaitguys #strength #strengthtraining #1percenters #performance #performancecoach #podiatry #sports #sportsmedicine #sportspodiatry #motorcontrol #trainthebrain #homeexercises #walking #exercise #exercises

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teamfairchildren · 5 years

Video

vimeo

The short foot exercise from Ivo Waerlop on Vimeo.

The short foot

Here it is, in all its glory...Our version of the short foot exercise. Love it or hate it, say it “doesn’t translate”, we find it a useful training tool for both the patient/client as well as the clinician. It awakens and creates awareness of the sometimes dormant muscles in the user and offers a window to monitor progression for them, as well as the observer.

Remember that the foot intrinsics are supposed to be active from midstance through terminal stance/pre swing. Having the person “walk with their toes up” to avoid overusing the long flexors is a cue that works well for us. This can be a useful adjunct to your other exercises on the road to better foot intrinsic function.

Dr Ivo Waerlop, one of The Gait Guys

#shortfootexercise #footexercises #footrehab #thegaitguys #gaitanalysis #gaitrehab #toesupwalking

Sulowska I, Mika A, Oleksy Ł, Stolarczyk A. The Influence of Plantar Short Foot Muscle Exercises on the Lower Extremity Muscle Strength and Power in Proximal Segments of the Kinematic Chain in Long-Distance Runners Biomed Res Int. 2019 Jan 2;2019:6947273. doi: 10.1155/2019/6947273. eCollection 2019 Okamura K, Kanai S, Hasegawa M, Otsuka A, Oki S. Effect of electromyographic biofeedback on learning the short foot exercise. J Back Musculoskelet Rehabil. 2019 Jan 4. doi: 10.3233/BMR-181155. [Epub ahead of print] McKeon PO, Hertel J, Bramble D, et al. the foot core system: a new paradigm for understanding intrinsic foot muscle function Br J Sports Med March 2014 doi:10.1136/bjsports-2013- 092690

Dugan S, Bhat K: Biomechanics and Analysis of Running Gait Phys Med Rehabil Clin N Am 16 (2005) 603–621

Bahram J: Evaluation and Retraining of the Intrinsic Foot Muscles for Pain Syndromes Related to Abnormal Control of Pronation aptei.ca/wp-content/uploads/Intrinsic-Muscles-of-the-Foot-Retraining-Jan-29-05.pdf

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thegaitguys · 3 years

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Fatigue matters. Why a quick treadmill analysis of someone's gait will lie to you.

This is why i think gait analysis, on a treadmill with all the sensors, the visual captures , there are so many lies and fake outs.

Driving to work today and I saw this 40 something lady running. It just might have been the most tortured running i have seen in ages. It made me wonder, when we see our clients at the office and we ask them to run, they are typically in a fresh state, they're going to give us their best running, they are naturally going to put out their best for us, even if we ask them to "just run".

The truth is, they haven't been out there for 10-15 miles slogging it out in the heat and the pain and in the dysfunction. They haven't been out in the elements slowly fatiguing stabilizers, slowly layering neuro-protective tightness and strategies to offset the fatiguing structures. Even if that lady came in to see me tomorrow, i am not going to see what i saw in here on the side of the road. The clues i might see will be the muscular inhibition, the neuro-protective tightness, the compensations, the things on the hands on examination. This is why gait analysis has to have a hands on examination. And if i put her through a screening method, i am going to see her strategies in the screen to get around all that i mentioned above.

This is why i think gait analysis, on a treadmill with all the sensors, the visual captures , there are so many lies and fake outs. That process has significant limitations. Do not get me wrong, everything has value, but do we know what that value is, and what the lies are?

I think my question for my clients needs to be, be honest with me how ugly does your run get in the later miles when you're in pain? But then again, that is an impossible question isn't it !? Self awareness has its limitations. After all, we are human.

When asked to run at my doctors office, i am still gonna put on my best run for them. I will hide my flaws, my weaknesses, my tightness, my soreness, and give them the best run i have. The game is on them. Lets see how good they are.

Good luck today comrades, see what you can find and solve in all those who come begging for help, yet doing their best to hide their worst.

#treadmills #gait analysis #video gait analysis #running #walking #endurance #fatigue #running analysis #gait #thegaitguys

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thegaitguys · 3 years

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What do the hip flexors have to do with the knee extensors ?

"It is not about your test, it is what your client displays in your test that matters. They will try to find a way. The load has to go somewhere, and they will find a place to put it, they always do. Finding out how your client cheats, compensates, recruits and fails is the value of the assessment."

This is just a small example of how I approach a client through small assessment window.

As best as I am able, knowing the absolute limitations of a supine examinations translation to vertical loading, I will approach a client's ability to stabilize in all 3 planes of movement. Today, i will micro-dissect a thought process.

The straight leg resistance test (SLR):

just a few incomplete thoughts on a SAGITTAL perspective (so as to avoid writing a book).

I will do it looking at **pelvis posture (anterior, posterior, oblique), lumbar spine posture (incr/decr lordosis), if they can keep their knee locked in a position, does the pelvis rotate, do they want to deviate into internal or external rotation at the hip, do they plantar or dorsiflex their ankle or toes. Lots to see here in how a client will recruit, and this is just a small snapshot of things they might do. Yes, head position, arm position were left out , again, to avoid a longer post today.

I will add consistent (as best as possible) resistance in the SLR test , with full locked knee, at hip 30, 45 and then full straight leg SLR (at the client's hamstring tension limit), then again at 45 degree knee lock with partial hip flexion, 90 degree hip and knee. I am changing loading vectors frequently to see if their is a directional loading failure. I am looking for their ability to provide ample resistance, and how they might cheat (see above).

But here is how my mind works through the test on the most basic level, which will give me insight on the above cheats** the client may employ.

* In the MOST SIMPLEST thought of the assessment, can they EFFECTIVELY stabilize the pelvis to the lumbar spine, can they stabilize the femur into the pelvis, can they stabilize the tibia onto the femur? It is how they choose to engage the system that matters, and that might be partly why their "Screen" shows up shoddy and may be a window into their pain.

The question is, if they fail, where are they failing and what tissues are overburdened or over protecting ? Where is the load, and where NOT is the load, going ?

"It is not about your test, it is what your client displays in your test that matters. They will try to find a way. The load has to go somewhere, and they will find a place to put it, they always do. Finding out how your client cheats, compensates, recruits and fails is the value of the assessment. This is how you need to be thinking when you perform many of the mostly useless orthopedic tests in the textbooks.

This is key,

a SLR screen will not show you any of this, it will just show you their range of motion, nothing more, not how they did it, what parts worked harder than other parts, and which parts are weak, injured or inhibited, for example. It is not what a client does, it is how they go about it that has the most value to you in helping them.

Today's article below is what spurred my rant today. It gives light that most already know, that everything is connected. And perhaps we can translate it into deeper thoughts for our clients, namely, what part is not doing its job, and where are they not connecting the parts, and where are they putting the loads ?

From the Ema study:

"Our findings indicate that hip flexion training results in substantial neuromuscular adaptations during knee extensions similar to those induced by knee extension training."-Ema et al.

We need a stable and strong core-spine-pelvis connection to display powerful knee extension, and, we need a stable and strong femur-pelvis connection as well. So, where is your client doing more or less of the work, and is it related to their hip, low back or knee pain? Or are they tossing it into the ankle perhaps? This is the beauty of the game we all play every day, if we are actually paying attention.

Now, remember my discussion last week about "adding strength to dysfunction" ? Where is your client going to put the load?, the answer, where they can/able. And that doesn't exactly mean where they should be putting it. Mindless prescription of corrective exercises is a real problem in my opinion.

Shawn Allen, the other gait guy.

#gait, #gaitproblems, #gaitanalysis, #correctiveexercises, #running, #hipflexors, #kneeextension, #SLR, #corestrength, #thegaitguys

Scand J Med Sci Sports. 2018 Mar;28(3):947-960. doi: 10.1111/sms.13008. Epub 2017 Nov 22.

Neuromuscular adaptations induced by adjacent joint training.

Ema R1,2, Saito I3, Akagi R1,3.

#gait #gaitproblems #gaitanalysis #correctiveexercises #running #hipflexors #kneeextension #SLR #corestrength #thegaitguys

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thegaitguys · 4 years

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Podcast 164: Foot placement challenges, vestibular issues & spatial orientation.

This podcast is way more interesting than the title !

join us each month on the Masterclass in Gait

https://www.patreon.com/thegaitguys

Join at the $40 monthly level and get the masterclass each month, bonus material and the detailed monthly content we only share on Patreon.

The Masterclass is a formal LIVE presentation of slides, videos, demos, deep dives on topics you will not hear anywhere but here ! We hit the gait, biomechanics, neurology and orthopedics of all of the gait topics we present. This is not for the weak and timid, this is the deep dive you have been waiting for. Join us while we turn our normal 50 minute presentations into 3.5 hours on a regular basis ! The 40$ Patreon level will give you the Masterclass and also get you the $20, $10, and 5$ Patreon level content. What a deal ! It will not be here forever so lock in now ! Or, you can get less for your money (why would you do that?) and just buy our Monthly $40 Masterclass at our VIMEO on demand page: https://vimeo.com/ondemand/thegaitmasterclass Links to find the podcast: Look for us on Apple Podcasts, Google Play, Podbean, PlayerFM, RADIO 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: Apple podcasts: 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

https://traffic.libsyn.com/secure/thegaitguys/Pod_164_was_pod_162_May_25_-_81520_6.20_PM.mp3

https://thegaitguys.libsyn.com/foot-placement-challenges-vestibular-issues-spatial-orientation

https://directory.libsyn.com/episode/index/id/15625700

#bioimechanics #footplacement #gait #gaitproblems #ivowaerlop #neurology #orthopedics #running #shawnallen #thegaitguys #treadmills #vestibular #walking

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thegaitguys · 4 years

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Podcast 163: The hip and foot talk to each other. A research paper.

You cannot miss this mini-podcast. It is an excerpt from our Masterclass program. Come join us monthly on the Masterclass at for the monthly Masterclass installment hour.

https://www.patreon.com/thegaitguys

Formal presentations, slides, videos, demos, deep dives on topics you will not hear anywhere but here ! We hit the gait, biomechanics, neurology and orthopedics of all of the gait topics we present. This is not for the weak and timid, this is the deep dive you have been waiting for. Join us while we turn our normal 50 minute presentations into 3.5 hours on a regular basis ! The 40$ Patreon level will give you 50% off the Masterclass and also get you the $20, $10, and 5$ Patreon level content. What a deal ! It will not be here forever so lock in now ! Or, you can get less for your money (why would you do that?) and just buy our Monthly Masterclass at our VIMEO page: https://vimeo.com/ondemand/thegaitmasterclass Links to find the podcast: Look for us on Apple Podcasts, Google Play, Podbean, PlayerFM, RADIO 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: Apple podcasts: 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

Other locations:

https://traffic.libsyn.com/secure/thegaitguys/163_mini_pod_peronei_-_8120_12.01_PM.mp3

https://thegaitguys.libsyn.com/the-hip-and-foot-talk-to-eachother-really-a-research-paper

https://directory.libsyn.com/episode/index/id/15439292

Today's article link: https://pubmed.ncbi.nlm.nih.gov/32717719/

#gait #thegaitguys #walking #running #anklesprains #hippain #hip abduction #lower extremity #short foot #DNS #neurology #biomechanics

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thegaitguys · 4 years

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Podcast 162: Climbing and gait

Podcast Guest today: Dr. Nick Hedges from Summit Chiropractic and Rehab summitchiroandrehab.com

*The Masterclass in Gait, with the Gait Guys

join us monthly at: https://www.patreon.com/thegaitguys for the monthly Masterclass installment hour. Formal presentations, slides, videos, demos, deep dives on topics you will not hear anywhere but here ! We hit the gait, biomechanics, neurology and orthopedics of all of the gait topics we present. This is not for the weak and timid, this is the deep dive you have been waiting for. Join us while we turn our normal 50 minute presentations into 3.5 hours on a regular basis ! The 40$ Patreon level will give you 50% off the Masterclass and also get you the $20, $10, and 5$ Patreon level content. What a deal ! It will not be here forever so lock in now ! Or, you can get less for your money and just buy our Monthly Masterclass at our VIMEO page: https://vimeo.com/ondemand/thegaitmasterclass Links to find the podcast: Look for us on Apple Podcasts, Google Play, Podbean, PlayerFM, RADIO 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: Apple podcasts: 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 Links to find today's show: https://traffic.libsyn.com/secure/thegaitguys/pod_161_Climbing_final_-_72620_5.40_PM.mp3 https://thegaitguys.libsyn.com/gait-and-rock-climbing https://directory.libsyn.com/episode/index/id/15367754

#gait #thegaitguys #climbing #nickhedges #shawnallen #ivowaerlop #running #rockclimbing #adamondra #DNS #movementpatterns

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thegaitguys · 4 years

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Podcast 159: Accelerating body mass, foot intrinsic thickness, ADHD gait and more !

Patreon and Masterclass: https://www.patreon.com/thegaitguys

join us at the 40$ level,

VIMEO on demand (pssst, the 40$ patreon level is a better deal !)

https://vimeo.com/ondemand/thegaitmasterclass

*The Masterclass in Gait, with the Gait Guys join us monthly at: https://www.patreon.com/thegaitguys for the monthly Masterclass installment hour. Formal presentations, slides, videos, demos, deep dives on topics you will not hear anywhere but here ! We hit gait, biomechanics, neurology and orthopedics of all of the gait topics we present. This is not for the weak and timid, this is the deep dive you have been waiting for. Join us while we turn our normal 50 minute presentations into 3.5 hours on a regular basis !

The 40$ Patreon level will give you the best deal on the Masterclass and also get you the $20, $10, and 5$ Patreon level content. What a deal ! It will not be here forever so lock in now ! Note, the 40$ Patreon level gets you more Masterclass content than the $40 VIMEO purchases. Links to find the podcast: Look for us on Apple Podcasts, Google Play, Podbean, PlayerFM, RADIO 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: Apple podcasts: 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 Links to today's show:

http://traffic.libsyn.com/thegaitguys/pod_159_april_5_-_42620.mp3

http://thegaitguys.libsyn.com/accelerating-body-mass-foot-intrinsic-thickness-adhd-gait-and-more

http://directory.libsyn.com/episode/index/id/14155346

Show notes:

Gait Posture. 2020 Feb 20;78:54-59. doi: 10.1016/j.gaitpost.2020.02.014. [Epub ahead of print]

Muscle capacity to accelerate the body during gait varies with foot position in cerebral palsy. Hegarty AK1, Kurz MJ2, Stuberg W2, Silverman AK3. J Sport Rehabil. 2020 Mar 31:1-9. doi: 10.1123/jsr.2019-0211. [Epub ahead of print] Effects of a 4-Week Short-Foot Exercise Program on Gait Characteristics in Patients With Stage II Posterior Tibial Tendon Dysfunction. Kim J, Lee SC, Chun Y, Jun HP, Seegmiller JG, Kim KM, Lee SY. Hum Mov Sci. 2020 Apr;70:102584. doi: 10.1016/j.humov.2020.102584. Epub 2020 Feb 8. Gait control in children with attention-deficit/hyperactivity disorder. Simmons RW1, Taggart TC2, Thomas JD3, Mattson SN3, Riley EP3. Gait Posture. 2020 Mar 17;78:30-34. doi: 10.1016/j.gaitpost.2020.03.009. [Epub ahead of print] Navicular drop is negatively associated with flexor hallucis brevis thickness in community-dwelling older adults. Fukumoto Y1, Asai T2, Ichikawa M3, Kusumi H3, Kubo H4, Oka T5, Kasuya A6. Front Pediatr. 2020 Feb 28;8:75. doi: 10.3389/fped.2020.00075. eCollection 2020. Effects of Selective Dorsal Rhizotomy on Ankle Joint Function in Patients With Cerebral Palsy. Ates F1, Brandenburg JE2,3,4, Kaufman KR1. Gait Posture. 2020 Mar 4;78:26-29. doi: 10.1016/j.gaitpost.2020.03.003. [Epub ahead of print] Higher visual reliance during single-leg balance bilaterally occurring following acute lateral ankle sprain: A potential central mechanism of bilateral sensorimotor deficits. Kim KM1.

#gait #thegaitguys #walking #running #CP #cerebral palsy gait #ADHD gait #ADHD #navicular drop #masterclass #shawn allen #ivo waerlop #rhizotomy #foot intrinsics

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thegaitguys · 5 years

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Podcast 151: Gait and neurology of movement, including, Tightness? shortness? What’s the difference? It's the Neurology.

Truths about Stretching, a case of sesamoiditis, plus exercised induced muscle damage and impaired motor learning, central fatigue, POSE and Chi running and injuries. This is a good one gang, do not miss it !

Links to find the podcast: Look for us on Apple Podcasts, Google Play, Podbean, PlayerFM, RADIO 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: Apple podcasts: 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 Other links for today's show:

http://traffic.libsyn.com/thegaitguys/pod_151final.mp3

http://thegaitguys.libsyn.com/gait-and-neurology-of-movement-including-tightness-shortness-whats-the-difference-its-the-neurology

http://directory.libsyn.com/episode/index/id/11168369

Show notes and links: We lose muscular Strength as we age. Changes in supra-spinal activation play a significant role in the age-related changes in strength. This motor system impairment can be improved by heavy resistance training https://www.ncbi.nlm.nih.gov/pubmed/25940749 Age (Dordr). 2015 Jun;37(3):9784. doi: 10.1007/s11357-015-9784-y. Epub 2015 May 5. Strength training-induced responses in older adults: attenuation of descending neural drive with age. Unhjem R1, Lundestad R, Fimland MS, Mosti MP, Wang E. Osteoarthritis and running https://journals.lww.com/acsm-csmr/Abstract/2019/06000/Running_Dose_and_Risk_of_Developing.5.aspx Recent literature adds to a growing body of evidence suggesting that lower-dose running may be protective against the development of osteoarthritis, whereas higher-dose running may increase one's risk of developing lower-extremity osteoarthritis. However, running dose remains challenging to define, leading to difficulty in providing firm recommendations to patients regarding the degree of running which may be safe. Can even experienced orthopaedic surgeons predict who will benefit from surgery when patients present with degenerative meniscal tears? A survey of 194 orthopaedic surgeons who made 3880 predictions Non-surgical management is appropriate as first-line therapy in middle-aged patients with symptomatic non-obstructive meniscal tears. https://bjsm.bmj.com/content/early/2019/08/12/bjsports-2019-100567 Sports Biomech. 2019 Jul 31:1-16. doi: 10.1080/14763141.2019.1624812. [Epub ahead of print] Running biomechanics before and after Pose® method gait retraining in distance runners. Wei RX1, Au IPH1, Lau FOY1, Zhang JH1, Chan ZYS1, MacPhail AJC1, Mangubat AL1, Pun G1, Cheung RTH1.

#gait #thegaitguys #fatigue #osteoarthritis #tightness #shortness #stretching #running #POSE #Chi running #gait problems #gait analysis #sesamoiditis #pronation #foot pain

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thegaitguys · 5 years

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Podcast 150: Subtalar joint control? Plus Heel raise effects on low back pain

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: Apple podcasts: 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 Other links: http://traffic.libsyn.com/thegaitguys/pod_1500final_-_81819_9.45_AM.mp3 http://thegaitguys.libsyn.com/subtalar-joint-control-plus-heel-raise-effects-on-low-back-pain

http://directory.libsyn.com/episode/index/id/10909609

Show notes The HyProCure proceedure https://images.search.yahoo.com/yhs/search;_ylt=AwrEeBmEH0RdlDUAiAUPxQt.;_ylu=X3oDMTByMjB0aG5zBGNvbG8DYmYxBHBvcwMxBHZ0aWQDBHNlYwNzYw--?p=hyprocure+sinus+tarsi+implant&fr=yhs-sz-001&hspart=sz&hsimp=yhs-001 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4621198/ https://www.ncbi.nlm.nih.gov/pubmed/21106413 https://www.ncbi.nlm.nih.gov/pubmed/29786228 High-heeled walking decreases lumbar lordosis.EdenyBaaklini et al. https://www.sciencedirect.com/science/article/pii/S096663621730108X The effect of high-heeled shoes on lumbar lordosis: a narrative review and discussion of the disconnect between Internet content and peer-reviewed literature. Brent S. Russell https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3206568/ Prolong Wearing of High Heeled Shoes Can Cause Low Back PainFarjad Afzal1* and Sidra Manzoor https://pdfs.semanticscholar.org/afb4/641b8ed6450fcbdfa8ff99029d935c2bdc88.pdf Relation between Wearing High-Heeled Shoes and Gastrocnemius and Erector Spine Muscle Action and Lumbar Lordosis. Cezar Augusto Souza Casarin https://www.medscitechnol.com/download/index/idArt/892352 A flatter foot approach? https://twitter.com/IzzyMoorePhD/status/1157034538192855041 Thoughts: titrate into speed work just like doing the same for longer and longer runs Creating a "speed base" https://www.fastrunning.com/?p=26410&preview=true "monster walks" Hip-Muscle Activity in Men and Women During Resisted Side Stepping With Different Band Positions. Lewis CL, et al. J Athl Train. 2018. https://www.ncbi.nlm.nih.gov/m/pubmed/30615490/ Physical findings differ between individuals with greater trochanteric pain syndrome and healthy controls: A systematic review with meta-analysis. Plinsinga ML1, Ross MH1, Coombes BK2, Vicenzino B3. Musculoskelet Sci Pract. 2019 Jul 25;43:83-90. doi: 10.1016/j.msksp.2019.07.009. [Epub ahead of print] https://www.ncbi.nlm.nih.gov/pubmed/31369906

#gait #gait problems #gait analysis #thegaitguys #running #walking #heeled shoes #high heels #low back pain #hyprocure #subtalar joint control #pronation #monster walks #speed work

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thegaitguys · 5 years

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The glutes medius is playing target practice.

We think about the gluteus medius often, mostly, during stance phases of locomotion. But, do not forget about the absolutely necessary function of the gluteus medius on the swing limb. Foot placement of that swing leg is in part dictated by how well the pendulum leg receives gluteus medius control to abduct the leg. When it fails to abduct adequately, a more adducted/medial foot placement occurs (think deeply about our long posts and podcast rants on the cross over gait, the narrow based walking and running gait style). An agreeable balance between the abductors and adductors affords a more pure forward saggital pendulum of the hinging leg. When imbalanced, from insufficient gmedius and the rest of the abductory team, the foot and leg can target a more medial pendulum swing and thus a more medial foot target placement. Thus, the gluteus medius is important in both the stance and swing phases of gait. Failure to develop the skill, endurance and strength of the gluteus medius and related complex of muscles during stance AND swing phases will often result in frontal plane pelvis drift on the stance limb, and adduction targeting of the foot (narrow step width). What is this called ? We call it the Cross Over gait and we have written oodles of articles about this gait phenomenon, more than anyone else. It is real, it has economical advantages and similar liabilities. Want to learn more, type it into the SEARCH box on our website-blog. Many people thinkn this is a normal gait, how we should all walk and run. And they are wrong, in part. Like most things, it has a place, but not a permanent place. We think like most things in this world, there is a benefit and a drawback to things, and it is how you use it, as long as you read the instructions. Sadly, we were never given a "users manual" when we were born, so we all did what felt natural and safe. It doesn't mean it was right.

-Dr. Shawn Allen

For our Patreon patrons: read and digest this post again before i film a video of a critical exercise we use to train the gluteus medius in BOTH PHASES ! All to often people just train the glute medius in the stance phase, and that is critical, but the swing phase is just as critical ! And this exercise i will film and post up on Patreon in the next 24 hours or so will help with this swing phase, but stance phase too. Be sure, when you study the video, that you do not get bogged down in what the exercise looks like. That is the easy part. For you to train yourself and your client, there MUST be a deep understanding of the specifics of the exercise. You have likely seen versions of this exercise other places, but it is the how and the why, and not getting sloppy with it, that is the key factor.

Photo: this came in an old box of Altra shoes, a brochure. We love Altras, they aren't for everyone, but if you are looking for a lower heel drop shoes with a wide toe box, try out a pair !

#gait #gait problems #gait analysis #gluteus medius #target practice #swing phase #stance phase #walking #running #form running #running form #thegaitguys

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thegaitguys · 5 years

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A video primer on foot biomechanics.

Rewind Video Friday. If you ever were unclear on how the sesamoids, 1st MET and FBH (flexor hallucis brevis) and others party together, this video will help you get up to speed.

As we begin the process of generating new videos, we came across this little gem from 8 years ago. Who is this younger punk ? Its Dr. Allen, showing some foot skills and sharing knowledge, stuff that will serve you well as we move forward with new videos.

https://www.youtube.com/watch?v=TyRE9dReVTE

#gait #gaitbiomechanics #gaitproblems #gaitcompensations #footfuntion #footbiomechanics #thegaitguys

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thegaitguys · 5 years

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Podcast 148: A deep dive case study. Plus, Central and Peripheral fatigue explained

tag/key words: gait, gaitproblems, gaitanalysis, forefootrunning, forefootstrike, heelstrike, pronation, central fatigue, peripheral fatigue, fatigue, hip rotation, gait biomechanics, running

Links to find the podcast: Look for us on iTunes, Google Play, Podbean, PlayerFM, Radio.com 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_1488_-_61419final.mp3 Permalink URL: http://thegaitguys.libsyn.com/podcast-a-deep-dive-case-study-plus-central-and-peripheral-fatigue-explained Libsyn Directory URL: http://directory.libsyn.com/episode/index/id/10151672

#gait #thegaitguys #gait analysis #gait problems #case study #central fatigue #peripheral fatigue #running #biomechanics #locomotion

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thegaitguys · 5 years

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Hip flexors do not initiate hip flexon.

We have been saying it in writing and podcasts for years, the hip flexors are limb swing phase PERPETUATORS, not initiators of hip flexion. It is the elastic response discussed below and the changing of the pelvis obliquity (from posterior positioning to anterior) via the abdominal wall acting on the pelvis-hip interval in conjunction with the stance phase hip musculature that drives hip flexion. The next time you go after the psoas as a culprit in your meanderings for solutions, because that is what is all over the internet, think bigger, smarter, deeper.

"These experiments also showed that the trailing leg is brought forward during the swing phase without activity in the flexor muscles about the hip joint. This was verified by the absence of EMG activity in the iliacus muscle measured by intramuscular wire electrodes. Instead the strong ligaments restricting hip joint extension are stretched during the first half of the swing phase thereby storing elastic energy, which is released during the last half of the stance phase and accelerating the leg into the swing phase. This is considered an important energy conserving feature of human walking."

Dan Med J. 2014 Apr;61(4):B4823. Contributions to the understanding of gait control. Simonsen EB1.

#thegaitguys, #hip, #hipflexors, #pelvismechanics, #swingphase, #gait, #gaitanalysis, #gaitproblems

#thegaitguys #hip #hipflexors #pelvismechanics #swingphase #gait #gaitanalysis #gaitproblems #hip flexion #psoas #swing phase

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thegaitguys · 5 years

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Walking and Running Require Greater Effort from the Ankle than the Knee Extensor Muscles.

Attached is an older video from a few years back , it is very similar in execution to the heel-rise ball squeeze exercise which is the precursor to this more functional engagement as shown in this video today.

The important premise is that you have to have command of the entire posterior compartment if you are to get safe, effective, efficient and adequate ankle plantarflexion. As we have discussed many times, if you do not have the requisite skills as shown in this video you are in trouble and ankle sprains and other functional pathologies are not unlikely to visit you. Additionally, without requisite posterior compartment endurance and an ability to engage what I like to refer to as "top end" strength in the heel rise is an asymmetrial loading issue and can lead to compensatory adaptations up the kinetic chain. Make no mistake, the load will go somewhere, and thus the work will be done somewhere. In this video you should be able to clearly see and understand that one must be able to achieve top end posturing and have command of lateral and medial forefoot loading responses and challenges if clean forward function and power is to be achieved, and injuries from extremes of motion medially and laterally are to be avoided. Furthermore, as eluded to here and in several of our podcasts (and in the study included below), an inability to achieve top end posturing will lead to changes in forefoot loading, may spill over into endurance challenges prematurely in the posterior mechanism, and create changes in the timing of the gait cycle (things like premature or delayed heel rise, premature or delayed forefoot loading, recruitment of other components of the posterior chain just to name a few). This parsing and sharing of loads and responsibilities is laid out in the Kulmala study referenced today. The study could be extrapolated to say, I believe, that particularly in sprinting, a failure to achieve top end heel rise through effective posterior mechanism contraction, will change the load sharing between the posterior compartment and the quadriceps. After all, if the calf is weak, the ankle is not in as much plantarflexion, this could mean more knee flexion and thus raise demands on the quadriceps, logically changing knee mechanics. This is exactly why we spend so much time at every patient visit looking for full range of motion at the joints and then determine the skill, endurance and strength of the associated muscles in supporting that range. Then, of course, comparing this function to the opposite limb. Symmetry is not everything, but it is definitely a major factor in safe efficient and injury free locomotion.

* Please give great thought to the part in the video where I discuss the drop phase in jumping. All too often we at looking for the propulsive mechanics and forget that a failure there will also be represented during the adaptive phase. Ankle sprains rarely occur from propulsive pushing off, they occur from a failure to properly reacquaint the foot to the ground on the following step. -Dr. Shawn Allen, one of the gait guys.

In this study the authors noted: "During walking, the relative effort of the ankle extensors was almost two times greater compared with the knee extensors. Changing walking to running decreased the difference in the relative effort between the extensor muscle groups, but still, the ankle extensors operated at a 25% greater level than the knee extensors. At top speed sprinting, the ankle extensors reached their maximum operating level, whereas the knee extensors still worked well below their limits, showing a 25% lower relative effort compared with the ankle extensors."

And concluded that: "Regardless of the mode of locomotion, humans operate at a much greater relative effort at the ankle than knee extensor muscles. As a consequence, the great demand on ankle extensors may be a key biomechanical factor limiting our locomotor ability and influencing the way we locomote and adapt to accommodate compromised neuromuscular system function."

Med Sci Sports Exerc. 2016 Nov;48(11):2181-2189. Walking and Running Require Greater Effort from the Ankle than the Knee Extensor Muscles. Kulmala JP1, Korhonen MT, Ruggiero L, Kuitunen S, Suominen H, Heinonen A, Mikkola A, Avela J. https://www.ncbi.nlm.nih.gov/pubmed/27327033

https://youtu.be/8T9UzOaYxmo

the gait guys #gait, #gaitproblems, #thegaitguys, #gaitanalysis, #heelrise, #calfstrength, #toeoff, #forefootloading, #metatarsalgia, #inversionsprain

#gait #thegaitguys #gait problems #gait analysis #heel rise #calf strength #peroneal strength #calf strengthening #toe off #forefoot loading #metatarsalgia #achilles pain #inversion sprain

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