April 15, 2017

Podcast 122: Achilles problems, glutes, & feet.

April 15, 2017/ The Gait Guys

Key tag words:
neuroscience, elon musk, achilles, tendonitis, tendonopathy, eccentric loading, tendon loading, gluteus maximus, gmax, glutes, abductor hallucis, foot pain, hip biomechanics, navicular drop, BEAR, ACL tear, ACL reconstruction, plantar fascitis

Show links:

http://traffic.libsyn.com/thegaitguys/pod_122f.mp3

http://thegaitguys.libsyn.com/podcast-122-achilles-problems-glutes-the-feet
Show sponsors:
www.newbalancechicago.com

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Show Notes:

Stanford Develops Computer That Literally Plugs Into People's Brains

https://www.entrepreneur.com/article/289645

Elon Musk says humans must become cyborgs to stay relevant.

https://www.theguardian.com/technology/2017/feb/15/elon-musk-cyborgs-robots-artificial-intelligence-is-he-right

1. achilles tendonopathy:

http://www.jospt.org/doi/abs/10.2519/jospt.2016.6462?platform=hootsuite&code=jospt-site

2. achilles tendinitis and tendonosis.

Ohberg L, Lorentzon R, Alfredson H, Maffulli N. Eccentric training in patients with chronic Achilles tendinosis: normalised tendon structure and decreased thickness at follow up. British Journal of Sports Medicine. 2004;38(1):8-11. doi:10.1136/bjsm.2001.000284.

link to abstract: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1724744/

3. Is Achilles tendon blood flow related to foot pronation?
E. Wezenbeek,T. M. Willems,N. Mahieu,I. Van Caekenberghe,E. Witvrouw,D. De Clercq

http://onlinelibrary.wiley.com/doi/10.1111/sms.12834/full

4. The effects of gluteus maximus and abductor hallucis strengthening exercises for four weeks on navicular drop and lower extremity muscle activity during gait with flatfoot

Young-Mi Goo, MS, PT,1 Tae-Ho Kim, PhD, PT,1,* and Jin-Yong Lim, MS, PT1 J Phys Ther Sci. 2016 Mar; 28(3): 911–915.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4842464/

5. BEAR
https://www.youtube.com/watch?v=k3g-CagCrZM

Bridge-Enhanced Anterior Cruciate Ligament Repair (BEAR) procedure uses stitches and a bridging scaffold (a sponge injected with the patient’s blood) to stimulate healing of the torn ACL eliminating the need tendon graft.

References:
Murray, M., Flutie, B., Kalish, L., Ecklund, K., Fleming, B., Proffen, B. and Micheli, L. (2016). The Bridge-Enhanced Anterior Cruciate Ligament Repair (BEAR) Procedure: An Early Feasibility Cohort Study. Orthopaedic Journal of Sports Medicine, 4(11).

L. Proffen, B., S. Perrone, G., Roberts, G. and M. Murray, M. (2015). Bridge-Enhanced ACL Repair: A Review of the Science and the Pathway Through FDA Investigational Device Approval. Annals of Biomedical Engineering, 43(3), pp.805-818.

March 26, 2013 March 26, 2013/ The Gait Guys

Mobium, Schmobium.

Here is the latest and greatest from the shoe manufacturer, Puma; it is their version of a more “adaptive” or “accommodative” shoe. They do not say minimalisitic, but rather it interferes minimally with walking or running. Good thing, because it has a pretty thick sole, superimposes a pretty substantial arch to the foot, and also has a fairly narrow toe box. Their runner is also a heel striker, at least at the beginning of the video.

Last time we checked, the plantar fascia was not “X” shaped and was present on the entire plantar surface of the foot, without an “apex” or “torque” in the center of where the medial longitudinal arch is located.

In referring to mirroring as they do in the video, we were wondering which muscles, bones and fat pads of the foot the “pods” actually mirror? And then there is those siping lines of the outsole, what’s with them and their location? The metatarsal heads form an arc at their distal end, where they articulate with the phalanges, as do the interphalageal joints (joints between the toes). This shoe’s lines arc less than we would expect.

They have the 5 metatarsal pads, not unlike the Newton. What happened at the toes? Individuals with 3 toes should do well with those pods for the proximal and distal phalanges, but we think this is probably a limited market (wink, smile, wink).

We agree that “expansion” of a shoe is important so we think this shoe has a neat underlying idea. We would hope most folks aren’t wearing shoes that are too tight or short that their feet don’t have room to move inside the shoe. We are also curious about the height of the lateral longitudinal arch, last time we looked there was not a tunnel shaped arch running under the foot. The lateral longitudinal arch is always must more subtle and gentle.

Technically sound? We don’t think so, not from what we have discussed above. As for bringing something to the market that doesn’t exist that enhances the performance of the athlete? Well, it is unique, but performance enhancement remains to be seen. As for wrapping the shoe in a blanket of fabulous Puma design? It does have catchy colors and a great marketing campaign…

Just some off the cuff thoughts on our part. We would love a pair to dialogue out these thoughts and others. We are always open to being wrong, but we know our shoes and we know foot and shoe anatomy and biomechanics. If you are from PUMA, contact us and send us a pair, we will be happy to eat our words if we are wrong in our cursory suppositions.

The Gait Guys. Helping you to make better footwear decisions and ask the questions no one wants to ask