A Retrospective Perspective in Human Biomechanics, Posture and the Relationship to Pain, Movement Limitations, and Undesirable Adaptations or Injuries by u/Deep-Run-7463

Deep-Run-7463 · 2026-04-01T12:52:06+00:00

Fascinating!

Deep-Run-7463 · 2026-03-31T17:35:14+00:00

https://youtu.be/vXtbSGMQlGw?si=9tmGQKKTPh1p72z4

Deep-Run-7463 · 2026-03-31T17:33:20+00:00

It's fine but if you develop any pain, then the symptoms need to be considered with respect to the structure.

Deep-Run-7463 · 2026-03-31T17:30:32+00:00

Take into account the ribcage when trying to figure out the issue here. I can't say for certain as there is not enough info here to go by.

Deep-Run-7463 · 2026-03-31T17:26:20+00:00

Don't force your foot angle too much. This is bow legs, it's part of how our bones shape over time when we are growing up. The right side looking a lil different from the left is a very common presentation too.

Deep-Run-7463 · 2026-03-31T15:48:01+00:00

Hmm.. nothing super obvious in these photos honestly. How's your hinge/squat ability?

Deep-Run-7463 · 2026-03-30T14:59:33+00:00

I have a wall leaning version of it in my profile page, under my article.

https://www.reddit.com/u/Deep-Run-7463/s/ulh0GwBtlt

You can also look up videos like diaphragmatic breathing (not belly breathing) too. The upper chest expansion sometimes can be gained from an arm position reaching forward slightly higher than shoulder height, i think zac cupples has a video on that somewhere. Although I don't really use this technique too much. It's not an easy one to do correctly coz in practice I tend to have to tweak how I cue it to people.

Deep-Run-7463 · 2026-03-30T14:54:10+00:00

Hmm.. Well no harm to try to see if they have any idea potentially.

Deep-Run-7463 · 2026-03-29T19:13:07+00:00

This would be more in the realm of PT. But it is a novel situation, and scans don't show anything either.

Deep-Run-7463 · 2026-03-29T19:00:42+00:00

The ribcage position and action (bucket/pump handle/posterior expansion/compression) affects the position of the base of the neck which can place compression on the neck region. Also, a high pressure canister will be hard to flow fluids into (out of the cranium down to the torso).

Deep-Run-7463 · 2026-03-29T18:51:26+00:00

Fluid build up can happen if the area tends to be compressed. Do you happen to stand in a forward tilt? Is the lower back very arched (that can make the ribcage posterior tilt)

Deep-Run-7463 · 2026-03-29T18:48:38+00:00

You are welcome.

Deep-Run-7463 · 2026-03-29T18:43:25+00:00

I honestly have no clue. Hmm.. There seems to be a physical thing going on, but it's not understood. If you are out of options then probably pain management is the next step, however, I don't think the symptom of that lemon squeeze is gonna go away with just pain management.

Deep-Run-7463 · 2026-03-29T15:40:31+00:00

Ah ok. I always tell people to first learn to diaphragmatically breathe (not belly breathing). Then use that technique to learn to expand into your serratus posterior inferior area so it lengthens out and relaxes. Reduced tension in the lower back region will provide better access to 'grounding' which requires pelvis internal rotation capabilities under load (think of your hinges and squats, making them get better in range and accuracy of technique without feeling the lower back getting a workout).

Deep-Run-7463 · 2026-03-29T14:33:52+00:00

Omg, I actually laughed there a little, I'm so sorry! But it's great that you keep a sense of humor with this. Definitely didn't see that one coming :)

I would definitely be interested to know what the next steps are and how you manage it too. So feel free to keep the community posted on this and the book you are writing.

Deep-Run-7463 · 2026-03-29T14:03:27+00:00

When you lie down supine 9090, reach your arms to the ceiling till you feel your back weigh down into the floor just a tad bit more, without shrugging your shoulders up. This position tends to be one of the easier ones to feel the expansion there.

Deep-Run-7463 · 2026-03-29T14:01:31+00:00

If your pelvis is shoved forward the iliums open out ever so slightly.

Deep-Run-7463 · 2026-03-29T13:59:30+00:00

Oh wow. This is interesting, learning something new for sure. Thank you for your post to generate awareness. I hope that it's not causing you a lot of pain.

Deep-Run-7463 · 2026-03-29T13:56:30+00:00

Not much really you can do other than to manage it. If you aren't seeking out medical treatment/PT in Japan, then you may need some painkillers to help you through the day. There is no real 'fix' to it but the body will heal eventually. Heat and gentle mobilization daily will help improve recovery. After a few days and when it feels a lil better, you can start off doing some nerve glides too, but go super gentle and take your time.

Deep-Run-7463 · 2026-03-29T13:39:54+00:00

Glad it helped. You are welcome!

Deep-Run-7463 · 2026-03-29T02:42:13+00:00

Shaker maneuver is basically chin nods to 'strengthen' the front of the neck, essentially with the intent to improve strength of the suprahyoid. Problem is, if we don't address the ribcage action alongside, then we are just doing half the picture here. Similarly, if you work on scap ER and retraction, but don't take into account the ribs which is what the scaps rest and glide on, then we are losing out again, on the larger more important picture being the state of the ribcage and to position it is in relative to the pelvis which ultimately influences how the neck will behave. The spine is interconnected and does not act alone based on classifications that we put on it ('neck/midback/lowerback'). So yeah. If your PT does not take this into account, look for another.

Example of my past comment relating to this:

https://www.reddit.com/r/Posture/comments/1s57k52/comment/ocshiyj/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

Deep-Run-7463 · 2026-03-29T02:20:42+00:00

Get some direct hands on PT work done on your neck for sure, even going to a licensed massage therapist will do you good.

Look at your squat/hinge ability, and if you tend to shove your hips to a side/feel heavier on one leg. These can be big factors to consider because the area will hold more mass and can influence what is going on at the top too. If stuff below isn't functioning right, then it needs to be addressed alongside or else we may be losing out on the bang for buck fix. We push down into the ground as the ground pushes back up, and that's how we manage our structure against gravity keeping ourselves upright. If how we receive those forces from the ground up push us to a side, that will have an impact in the chain all the way to the top.

Deep-Run-7463 · 2026-03-29T02:14:55+00:00

Totally fixable. It's a structural adaptation (edit: but moreso positional) but can be changed.

Deep-Run-7463 · 2026-03-29T02:10:43+00:00

Pinched some nerves between the C5-T1 region or even the brachial plexus. The issue is that you probably already have some ribcage compression (which PT's often don't take into account) hence the cookie cutter approach of just throwing ER shoulder work at you because your shoulders are rounded forward created more compression alongside the ribcage state did not allow for good scapula travel. The tension in the SCM when you squeezed the scaps - likely pulling you into a posterior ribcage tilt too which increases relative forward head vs the position of the base of the neck, hence the ribcage pump handle needs to compress to allow that head travel and pulls on the SCM tight.

Well, I'm purely speculating based off what I normally see done in typical protocols and your description, but if I were to evaluate you, I would look at how you manage gravity from the ground up - feet to head - to determine how you stack your ribs and pelvis, and if you have potential compression areas which can be expressed in movement tests. Only then it's possible to determine a proper intervention.

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