The ATSI 12-Series. Twelve sessions. Lasting structural change.

The 12-Series is the flagship protocol of Anatomy Trains Structural Integration. It is not twelve random sessions. It is a carefully sequenced progression through the body's fascial architecture, each session building on the last, each one addressing a specific structural territory. By the end, we have worked through your entire structure and created change that lasts.

I practice this protocol because it works. It is methodical where other approaches are scattered. It is progressive where other treatments are repetitive. And it treats your body as an integrated system, which it is, rather than a collection of parts, which it is not.

How the series is structured.

The 12-Series moves through three phases: superficial sessions, core sessions, and integration sessions. Each phase has a specific purpose, and the order matters. We do not skip around.

Sessions 1 through 4: the superficial sessions.

The first four sessions address the outermost fascial layers, what Tom Myers calls the "sleeve." This is the fascia you can feel just under the skin and around the superficial muscles.

Session 1 opens the breath. We work with the rib cage, the diaphragm, and the superficial front line to create more space for breathing. Most people do not realize how restricted their breathing has become until this session opens it up.

Session 2 works with the feet and lower legs. Your foundation matters. If the fascial tissue in your feet and ankles is restricted, everything above compensates. This session establishes a more balanced base.

Session 3 addresses the lateral line, the tissue running along the sides of your body from the outside of your foot to the side of your skull. This session creates space between the pelvis and the rib cage and improves side-to-side balance.

Session 4 addresses the spiral line, the fascial band that wraps around the body and manages rotation. This session works with the rotational patterns every body carries: one shoulder forward, one hip rotated, the subtle twist most people do not know they have. By the end of session 4, the superficial sleeve has been opened front, back, side, and through rotation.

Sessions 5 through 8: the core sessions.

With the superficial layers addressed, we go deeper. These sessions work with the fascial tissue closer to the spine, the viscera, and the deep stabilizing structures.

Session 5 starts the deep work by opening the lower deep front line. We work the inseam of the leg, from the arch of the foot up the inside of the lower leg and through the adductor attachments at the pelvis. This is tissue almost nobody has ever had worked with real precision, and it is the foundation the deeper core work sits on top of.

Session 6 works the breath through the relationship between the psoas and the diaphragm. Both muscles attach to the lumbar spine and are fascially continuous. When they release together, breath drops through the torso and the low back decompresses. This is where many clients first feel what a three-dimensional breath is supposed to be.

Session 7 addresses the deep back line: the small muscles that run vertebra to vertebra, the deep layers of the erectors, and the tissue around the sacrum. With the deep front opened in Sessions 5 and 6, Session 7 wakes up the scaffolding behind the spine so the outer back can stop bracing.

Session 8 focuses on the head, neck, face, and jaw. Tension patterns in the head and face are connected to fascial lines running through the entire body. This session often produces the most dramatic subjective shifts. Clients frequently report clearer thinking, less jaw clenching, and a sense that their head is "floating" rather than being held up.

Sessions 9 through 12: the integration sessions.

The final four sessions are about integration, making sure all the changes we have created work together as a coherent whole. This is where the body learns to use its new structure.

Sessions 9 and 10 address upper and lower body integration, respectively. We revisit areas from earlier sessions, but the work is different now. The tissue has changed, the body has reorganized, and these sessions refine what has already shifted.

Session 11 works with the functional lines, the fascial pathways that govern cross-body movement. This session helps the body move as a unified system rather than in isolated segments.

Session 12 is the final integration. We close the series by ensuring all the structural changes are balanced and the body feels complete. This session is often the most subtle and the most important.

What results look like.

The 12-Series produces structural change, meaning the results persist because the tissue itself has been reorganized. This is different from treatments that provide temporary relief. After the series, most clients maintain their results for years.

Common outcomes include reduced or eliminated chronic pain, improved posture without effort, greater range of motion, easier breathing, better balance, and a general sense of being more at home in your body. The specifics depend on what you bring in. Every body is different, and every series is adapted to the person on the table.

For real examples, see the client results page.

Pricing and getting started.

The full 12-Series is $3,000, which includes all twelve sessions. Individual sessions are $180 each if you prefer to go session by session. Payment is due at or before each session.

The best first step is a free consultation. It takes about 15 minutes. We will talk about your body, your goals, and whether the 12-Series is the right fit. If a shorter series makes more sense, I will tell you that honestly. See the full sessions and pricing page for all options.

For deeper reading on the approach, start with what structural integration is or explore how fascia works. To understand how this compares to other bodywork, read structural integration vs. massage.