Explore Your Myofascial Meridians
Your body is not a bag of isolated muscles. It is a connected fascial network — 12 continuous lines that govern how you move, perform, and recover. Explore each line. Understand the system. Find the right path forward.
The Line Most Often Missed
How the Spiral Line explains what your last trainer couldn't
Tom Myers' Anatomy Trains framework identifies twelve continuous fascial lines that govern human movement. Of those twelve, the Spiral Line is the one most often missed — by trainers, by therapists, and by the athletes who keep cycling through the same plateau without understanding why.
The Spiral Line wraps the body in a double helix, crossing from skull to arch and back again. It powers every rotational movement you make: gait, throwing, cutting, swinging a golf club, planting and pivoting on a tennis court. When the Spiral Line functions well, force transfers seamlessly through the sling — rotation is powerful, deceleration is controlled, and the body moves as a coordinated system. When it does not, the symptoms scatter. Collapsed arches. Rotational low-back stiffness. A golf performance ceiling that no amount of swing coaching resolves. A runner whose stride breaks down at mile three but whose individual muscles all test strong in isolation.
Most fitness professionals miss the Spiral Line because they train muscles, not lines. They see the tight hip flexor, the weak glute, the stiff thoracic spine — and they treat each one separately. NeoFit sees the spiral. We assess the entire line from splenius to peroneus longus, identify where the force transmission breaks down, and build rotational capacity through the full sling. That is the difference between chasing symptoms and resolving the pattern.
If you have been told your arches are flat, your back is tight, and your rotational power has hit a ceiling — and nobody has connected those dots — you are looking at Spiral Line dysfunction. The body map below lets you trace the line yourself, structure by structure, and see how one continuous fascial pathway links the head to the foot in a spiral that most providers never assess.
What Is a Myofascial Meridian?
Fascia is a continuous web of connective tissue that wraps every muscle, bone, nerve, and organ in the human body. Think of your body's fascia like a single sweater knit — pull one thread and the tension travels everywhere. A myofascial meridian is a continuous pathway through that web where force is transmitted from one structure to the next, crossing joints and connecting regions that traditional anatomy treats as separate.
Tom Myers identified twelve of these pathways in his landmark work Anatomy Trains (now in its third edition). Each meridian — or “line” — traces a specific route through the body's fascial fabric, from skull to toe or shoulder to fingertip. These are not abstract concepts. They are dissectable, observable continuities of connective tissue that explain why a restriction in your foot can alter how your shoulder moves, or why a stiff jaw can compromise your breathing. When you understand lines, you stop treating parts and start training the system.
Why Does NeoFit Train by Lines Instead of by Muscles?
The conventional fitness model treats the body as a bag of isolated muscles. Train the glutes on Monday. Hit the chest on Tuesday. Isolate the rotator cuff with a band exercise. The problem: your body does not move that way. The gluteus maximus is a node on the Back Functional Line and the Spiral Line. The pectoralis major connects the Front Functional Line to the opposite adductor. Isolating one node while ignoring its line is like tuning one string on a guitar and expecting the whole chord to improve.
NeoFit's approach draws from Gray Cook's principle — screen before train. We assess the whole line first, identify where force transmission breaks down, and program movements that restore function through the entire meridian. Ido Portal's concept of movement vocabulary applies here too: we do not build specialists who are strong in one pattern and fragile in another. We build athletes who are fluent across all twelve lines — capable of rotation, extension, lateral stability, deep core support, and contralateral power transfer. That is what training by lines makes possible.
The 12 Anatomy Trains Lines
Each of the twelve lines in Tom Myers' Anatomy Trains framework serves a distinct role in human movement. Use the interactive body map above to explore any line in detail — select a line to see its full fascial pathway, common dysfunctions, and how NeoFit trains it.
Postural Lines
- Superficial Back Line (SBL) — Maintains upright posture from plantar fascia to the scalp. The line that keeps you standing. Explore the SBL
- Superficial Front Line (SFL) — Trunk and hip flexion, knee extension. The SBL's counterweight and the startle-response pathway. Explore the SFL
- Lateral Line (LL) — Lateral flexion and frontal-plane stability. Governs single-leg balance and side-to-side control. Explore the Lateral Line
- Deep Front Line (DFL) — Core volume, breathing, postural support. The body's deepest support column, from jaw to inner arch. Explore the DFL
Spiral and Rotational
- Spiral Line (SpL) — Wraps the body in a double helix. Powers and decelerates rotation in gait, throwing, swinging, and cutting. Explore the Spiral Line
Arm Lines
- Superficial Front Arm Line (SFAL) — Gripping, pulling, and reaching across the body. Explore the SFAL
- Deep Front Arm Line (DFAL) — Precision reach and fine manipulation. Anterior scapular stability. Explore the DFAL
- Superficial Back Arm Line (SBAL) — Overhead reach, pushing, and catching. Explore the SBAL
- Deep Back Arm Line (DBAL) — Scapular stabilization, throwing mechanics, and deep shoulder control. Explore the DBAL
Functional Lines
- Front Functional Line (FFL) — Contralateral power in the front body. Connects the chest to the opposite inner thigh. Explore the FFL
- Back Functional Line (BFL) — Contralateral power in the back body. The lat-to-opposite-glute sling that drives sprinting and carrying. Explore the BFL
- Ipsilateral Functional Line (IFL) — Same-side stabilization during locomotion. Prevents hip collapse on the stance leg. Explore the IFL
How Is This Different from Traditional Strength Training?
The difference is not intensity or exercise selection — it is the operating system. A traditional strength program prescribes exercises by muscle group: chest day, back day, leg day. NeoFit prescribes by line. We do not ask “which muscle is weak?” — we ask “where does force transmission fail along this meridian?”
A traditional program starts with load. NeoFit starts with a screen — Gray Cook's foundational principle. We identify dysfunction first, restore movement quality through the affected line, then load it progressively. Kelly Starrett's daily mobility practice is woven into every program as hygiene, not a warm-up ritual. David Weck's rotational mechanics inform our gait and spiral work. The result is an athlete who earns intensity through quality — whose capacity at forty, fifty, or sixty is still climbing rather than declining.
In practical terms: a typical gym sees a client with rotational back stiffness and prescribes core work. NeoFit screens the Spiral Line, finds the force-transmission break (often at the tibialis-anterior-to-peroneus-longus crossing in the foot), and rebuilds rotational capacity from the ground up. Same athlete, same complaint, fundamentally different approach.
When Should I See a Physical Therapist Instead?
NeoFit is a performance training system, not a clinical service. If you are currently experiencing pain, have an unresolved condition that has not responded to training, or are dealing with Deep Front Line or Deep Back Arm Line dysfunction that involves the pelvic floor, jaw, or rotator cuff — start with NeoLife Physical Therapy.
The cross-referral is intentional. NeoLife PT handles clinical rehabilitation — identifying and resolving tissue-level dysfunction, managing post-surgical recovery, and clearing athletes for return to full loading. Once you have graduated from clinical care and are ready to build performance on a sound foundation, NeoFit picks up where PT leaves off. If our screening process identifies undiagnosed dysfunction or active tissue compromise, we refer back to NeoLife. The system works because both sides share the same anatomical framework — Anatomy Trains meridians — so the handoff is seamless.
How Does NeoFit Assess Which Lines Are Dysfunctional?
Every new athlete begins with a Movement Doc Screen — a comprehensive movement assessment designed to evaluate force transmission across all twelve fascial lines. The screen is not a workout. It is a diagnostic session: squat depth, single-leg balance, overhead reach, gait pattern analysis, and line-specific provocation tests that reveal where the system breaks down.
NeoFit offers three tiers of the Movement Doc assessment:
- Movement Doc Screen ($1,250) — Single-session assessment covering the primary postural and spiral lines. Identifies the highest-priority dysfunction and produces an initial corrective program.
- Movement Doc Signature ($2,050) — Two-session deep dive including all twelve lines, gait analysis, and a full corrective-to-performance programming bridge.
- Movement Doc Comprehensive ($2,450) — Three-session assessment with advanced screening for the Deep Front Line, arm lines, and functional lines. Includes follow-up retesting and a long-term performance roadmap.
The outcome of any tier is a clear picture: which lines are functioning well, which are compromised, and a program designed to restore force transmission through the whole system before loading for performance. Learn more about Movement Doc.
Who Created Anatomy Trains?
Tom Myers is a bodywork therapist, author, and anatomist whose career spans more than forty years of practice and dissection research. His book Anatomy Trains: Myofascial Meridians for Manual and Movement Therapists, now in its third edition, is the foundational text for understanding how fascia connects the body into continuous functional chains. Myers studied with Ida Rolf (founder of Structural Integration) and Moshe Feldenkrais, and his work bridges manual therapy, movement training, and anatomical science.
NeoFit applies Myers' framework to performance training — not just manual therapy. Where most practitioners use Anatomy Trains to inform hands-on bodywork, NeoFit uses it as the operating system for program design, movement screening, and athlete development. Every line in this body map, every assessment flow, and every program cross-reference traces back to Myers' original research and its practical application in the training environment.
