Plantar arch ↔ Spine ↔ Cranial base

Deep Front Line

Moderate evidence — multi-segment chain

Tibialis posterior → deep posterior compartment fascia → adductor fascia → psoas/iliacus fascia → endopelvic fascia → diaphragm → pretracheal fascia

Structures

  1. 1
    Deep posterior compartment fascialower leg
    →
  2. 2
    Adductor fasciamedial thigh
    →
  3. 3
    Fascia iliacapelvis
    →
  4. 4
    Endopelvic fasciapelvic floor
    →
  5. 5
    Crural fascia (diaphragm)thoracolumbar junction
    →
  6. 6
    Pretracheal fasciacervical
    →

Muscle references

Tibialis posteriorPsoas majorIliacusDiaphragmLongus colli
ⓘ

Described as a deep structural axis through successive fascial compartments, not a continuous mechanical line. Several transitions (e.g. diaphragm to cervical fascia) have weaker direct dissection evidence than the posterior chain.

Sources

What Is Evidence-Based About Myofascial Chains: A Systematic Review

Wilke J et al. · Arch Phys Med Rehabil, 2016