Form Follows Function: Rethinking Postpartum Recovery

If I could teach the fitness industry one thing about the postpartum body, it would be this: form follows function. I think understanding that one principle clears up so much of the confusion around postpartum recovery.

We teach women to chase form without ever teaching them function.

Flatten your stomach. Narrow your waist. Close your diastasis. Lose the pooch. Get rid of the C-section shelf. Tighten your pelvic floor. Get your body back.

And then we hand them strategies (crunches, planks, bracing, sucking in, Kegels, calorie restriction, harder workouts) that were built from an incomplete understanding of what the core actually is and how it functions.

Conventional postpartum care reduces the core to muscles that need to be strengthened, tightened, or activated while largely overlooking the role of the core myofascia, breathing mechanics, pressure, the nervous system, organ support, circulation, and the reflexive nature of core function.

So we're using strategies designed to manipulate what the body looks like without first understanding what is creating that form in the first place.

That's the fundamental mistake: trying to change the output without restoring the system producing it.

And when those strategies don't work—or a woman gets stronger but still has the pooch, the diastasis, the leaking, the heaviness, or the pain—we often make her body the problem. She's told she needs to try harder, lose more weight, strengthen more, accept that this is just what happens after babies, or pursue surgery.

That's backwards to me.

Before I try to change the shape of a body, I want to understand the physiology creating that shape. 

• Why is the abdomen being pushed forward? 
• Where is her intra-abdominal pressure going? 
• How are her ribs moving when she breathes? 
• What is her diaphragm doing? 
• What is the resting tension of the abdominal wall? 
• How is her fascia transmitting force? 
• Where are her organs being supported? 
• Is her pelvic floor responding reflexively or chronically guarding? 
• Is her nervous system organizing around movement, or protection?

The shape we see on the outside is giving us information about what is happening on the inside. Form follows function.

And here's where I think women sometimes get caught between two equally unhelpful messages: On one side, the wellness and fitness industries tell her she should want her old body back- and they'll happily sell her whatever promises to flatten, tighten, shrink, or sculpt it. 

On the other side, sometimes the response to that harmful pressure is to tell women they simply shouldn't care what their postpartum bodies look like. I don't think either extreme serves women particularly well.

You are allowed to want a flatter stomach. You are allowed to want your waist back. You are allowed to want to feel beautiful, athletic, strong, and at home in your body again. The problem isn't wanting those things. The problem is being taught to chase the form while ignoring the function that creates it.

When the core is functioning well: when breathing mechanics are restored, the Core Myofascial Reflex is responsive, pressure is being distributed appropriately, the abdominal wall is managing tension well, the pelvic floor can respond and release, and the internal structures of the core are being supported… the external body will reflect that.

The waist will narrow. The abdomen will be flatter and more toned. A diastasis resolves. The lower belly lifts.

But now those changes aren't being forced onto the body. They are emerging from improved function. And to me, that is an entirely different relationship with the body.

But to understand why restoring function can change form, we have to expand our definition of function itself. This is where the mechanical-only model falls apart. The core is not simply a collection of muscles waiting to be strengthened. It is fascial, neurological, metabolic, vascular, visceral, and mechanical—all at once.

The fascia isn't simply wrapping around our muscles like plastic packaging. It is living, sensory, adaptive tissue that creates continuity throughout the body. It transmits and responds to information about our internal and external environments. It redistributes force, stores and releases elastic energy, contributes to tension and recoil, and helps organize relationships between muscles, bones, nerves, blood vessels, and organs. And fascia doesn't operate independently of the nervous system. 

The nervous system is constantly interpreting information and determining an appropriate response: 

• How much tension do we need here? 
• What can soften? 
• What needs to contract? 
• What needs to stabilize? 
• Are we organized for efficient movement, or do we need protection?

So what we experience mechanically as tension, stiffness, bracing, gripping, or ease is also deeply neurological. And none of this happens without metabolism.

Fascia, muscle, nerves, and every other tissue in the core are living tissues. They require oxygen, blood flow, nutrient delivery, waste removal, mitochondrial activity, and energy production to maintain, repair, remodel, and function. This is where separating “mechanical” from “metabolic” becomes almost artificial, because the mechanical health of a tissue depends on its metabolic health- and its metabolic environment is influenced by the way that tissue is being moved, loaded, compressed, decompressed, and perfused.

Position matters. Pressure matters. Movement matters. Load matters. Tension and recoil matter. Circulation matters. Oxygenation matters. They are not separate systems competing for our attention; they are different expressions of the same living biology.

That is what the mechanical-only model misses. You cannot meaningfully change the mechanics of living tissue without changing its physiology—and you cannot meaningfully change its physiology without affecting the way it moves, loads, adapts, and responds.

The body is not a machine made of individual parts. It is a living system in constant conversation with itself.

And our organs are part of that conversation, too. They aren't passive objects sitting inside a muscular container. Their position, support, mobility, circulation, and relationship to pressure influence the environment of the entire core. The vascular system supplies the tissues we're asking to heal. The nervous system interprets. The fascia communicates and adapts. The muscles respond. The organs move. The breath changes pressure through all of it.

So when I say I rehabilitate the core, this is the core I'm talking about. Not an abdominal muscle. An interconnected biological system.

Mechanics are one part of the biology. They are not the whole biology.

That's the mistake. When we reduce the core to mechanics alone, we start treating the body like a machine with a loose bolt. “This muscle is weak. Strengthen it. This muscle isn't firing. Activate it. This gap is open. Close it. This pelvic floor is loose. Tighten it.”

But living systems don’t work that way.

Change the way she breathes, and you haven't just moved some ribs- you've changed pressure, sensory input, neurological input, circulation, muscular demand, fascial tension, and the environment surrounding her organs.

Change her alignment, and you haven't simply made her “stand up straighter”- you've changed the mechanical relationships from which her diaphragm, abdominal wall, spine, fascia, and pelvic floor operate.

Improve circulation and tissue oxygenation, and you've changed the metabolic environment in which tissue repairs, remodels, and functions.

Restore the Core Myofascial Reflex, and you've changed how her body responds to force before she ever consciously thinks, “Engage my core.”

That is why we can't separate mechanical rehabilitation from fascial, neurological, metabolic, and physiological rehabilitation. They're all happening in the same woman, at the same time.

And it changes how I think about aesthetics, too. I don't look at a postpartum belly and think, How do we make this smaller? I think, What is this shape telling me about her function? That's a very different question.

Because if her abdomen is being pushed forward by the way she manages pressure, teaching her to grip it harder may temporarily change its appearance while reinforcing the very strategy contributing to the problem.

If her waist has widened because her rib cage and abdominal wall are still organized around the demands of pregnancy, simply telling her to “work her obliques” doesn't necessarily address why that shape remains.

If she has a lower-belly pooch, I don't want her spending the rest of her life sucking it in. I want to understand why her body is putting it there.

We need to work from the inside out and follow this sequence:

Breathing Mechanics → Core Myofascial Reflex → Pressure Management → Pelvic Organ Support → Optimal Function

Form is a reflection of this sequence restored.

That last piece matters to me because I never want function to become another way of telling women they're shallow for caring about appearance. Pregnancy changes a woman's body profoundly. It is completely reasonable for her to want to recognize herself again. But I don't want her pursuing a smaller body at the expense of a healthier one.

I want her to discover that those goals don't necessarily have to compete. The flat stomach isn't the metric of healing. The number on the scale isn't the metric of healing. The size of the diastasis isn't even, by itself, the metric of healing.

The metrics of healing are: 

• Can she breathe freely? 
• Can she generate and manage pressure? 
• Can her core respond automatically? 
• Can her pelvic floor both support and release? 
• Can she lift her child without bracing for pain? 

Can she run, laugh, sneeze, have sex, exercise, sleep, digest, eliminate, and move through her life with confidence? 

That's integrity. Integrity is when the way a body looks is no longer achieved at the expense of the way that body functions.

And when a flatter abdomen, narrower waist, stronger-looking body, or improved diastasis emerges alongside that? Beautiful. But now the form is reflecting the function. We didn't discipline her body into looking healthier. We restored the conditions that allowed her body to function more like it was designed to… and let form follow.

That, to me, is what postpartum rehabilitation is all about.