Somewhere along the way, IG decided that any visible lower rib means you have “rib flare” and should immediately start flattening yourself into submission.
Unlike Instagram face, rib cages are not identical.
Some sit more anteriorly. Some are broader. Some are narrower. Some people have a more visible lower angle even when they are standing comfortably and controlling their trunk just fine. Anatomy differences exist and not every visual difference is a dysfunction
Here’s what I think matters…..
Can you control what your rib cage is doing when you move?
Catwoman Is a Better Posture Model Than a Soldier
If I wanted a visual metaphor for this, I would not pick military posture. I would pick Catwoman.
Catwoman bends, rotates, reaches, side-bends, arches, curls and shifts her weight without looking like somebody stapled her shoulder blades together.
Posture is not one frozen “correct” position. Your rib cage has to move with your spine. Your shoulder blades have to move around your rib cage. Your pelvis changes relationship to your spine as you flex, extend, rotate and load your limbs.
The interesting part is not whether you can hold one shape for a photo. It is whether you can move between shapes on purpose.
Some Rib Cages Are Just More Visible
A more visible lower rib angle can come from a lot of things, including basic bone shape.
That matters because fitness content has a nasty habit of taking an aesthetic and turning it into a diagnosis.
You can absolutely have poor trunk control. You can also have perfect control and still not have the rib silhouette of the person in the tutorial you just watched.
Rib Cage, Spine and Pelvis: Related, Not Identical
The rib cage sits on the thoracic spine. The pelvis sits under the lumbar spine. Your abdominal wall connects and is rhe OG influencers for both. So yes, what happens in one area affects the others.
But “rib flare,” spinal extension, anterior pelvic tilt, neutral pelvis and imprint are not five interchangeable names for the same thing.
You can move your ribs without dramatically changing your pelvis. You can change pelvic position without producing the same rib response every time. You can extend through the thoracic spine without automatically dumping into the low back if you have enough control.
This is why Pilates has always cared about organization, not just shape.
Neutral and Imprint Are Tools, Not Moral Categories
Pilates teachers have used versions of neutral and imprint for decades to help people understand trunk position and abdominal control.
Neutral is not “good.” Imprint is not “bad.” The reverse is not true either…..They are positions.
Sometimes an exercise makes more sense with a more neutral pelvis and spine. Sometimes a more posteriorly organized or imprinted position gives you a better strategy for abdominal work or helps you manage the load of the legs. Sometimes changing your spine from imprint to neutral can change the intensity. Sometimes changing it is just bad form….
If the only position available to you is the one you fell into accidentally, then you might wanna pay a bit more attention…
Why I Use Rib Shifts, Circles and Rotation
We use rib shifts and circles because they make the rib cage less abstract. You can actually feel where your trunk moves easily and where it gets weirdly sticky.
Cat-cow, thread the needle, thoracic rotation and side-bending add spinal movement around that awareness.
That matters because the rib cage is not supposed to live permanently stacked in one Instagram-approved position. It has to rotate when you rotate. It has to move when you side-bend. It changes shape when you flex and extend. It expands and contracts when your lungs and other organs fill
If your only “posture strategy” is holding your ribs down harder,
Congratulations, I guess…. if you waned to lose mobility in your spine trunk or core
bro do you even Core Control
Once you can move the rib cage on purpose, we make the job harder. Now the question becomes: can you keep the trunk organized while the limbs move?
Can you extend a leg in a prone ab move without losing imprint or neutral?
Can you choose neutral or a more imprinted position instead of arching your back or are you jjst adding ankle weegiths and wondering why your ab moves feel easy but your low back hurts?
That is where neutral-to-imprint articulation, tabletop work, block press and opposite-leg or dead-bug variations come in…. Your
Pretty Posture Is Having Options
The entire Pretty Girl Posture series is built around this idea.
Part 1 gives the shoulder blades more movement and better control.
Part 2 adds upper-back and shoulder strength with a long band.
Part 3 works thoracic extension, then asks the upper back to support that range with Y/T/W work.
Part 4 brings the rib cage, spine, pelvis and core into the conversation.
It’s not about forcing everybody into the same silhouette.
It is about having enough mobility, strength and control that your body has choices.
Train It With Me
Pretty posture isn't one position. It's having options.
