10. The Deep Front Line

     The Deep Front Line is the body's myofascial core, as it defines the deep three-dimensional space deep within the body.  It's main postural function is providing support and lift in the inner arch of the foot, stabilizing both segments of each leg, as well as the hips, supporting the lumbar spine from the front, giving shape to the abdominopelvic balloon, stabilizing the chest while allowing the expansion and relaxation of breathing, and balancing the neck and head. 

     If this line is lacking definition, strength, and/or proper balance, there is an overall shortening throughout the body, which encourages collapse of the pelvic and spinal core, laying the groundwork for postural deviations in all the other meridians.

The Deep Front Line can be broken down into six parts:

Lowest Common

Lower Posterior

Lower Anterior

Upper Posterior

Upper Middle

Upper Anterior

So, I've broken down each list below accordingly.

Muscles of the DFL:

Lowest Common:

Tibialis posterior

Long toe flexor

Lower Posterior:

Adductor magnus and minimus

Lower Anterior:

Adductor brevis and longus




Femoral triangle

Upper Posterior:

Longus colli and cavities

Upper Middle:

Posterior diaphragm



Scalene muscles

Upper Anterior:

Anterior diaphragm

Transversus thoracis

Infrahyoid muscles

Suprahyoid muscles

Connective tissues of the DFL:

Lowest Common:

Fasciae of popliteus

Knee capsule

Lower Posterior:

Posterior intermuscular septum

Pelvis floor fascia

Levator ani

Obturator internus fascia

Anterior sacral fasciae

Anterior longitudinal ligament

Lower Anterior:

Medial intermuscular septum

Upper Posterior:

Anterior longitudal ligament

Upper Middle:

Crura of the diaphragm

Central tendon

Parietal pleura

Fascia prevertebralis

Pharyngeal raphe

Medial scalene fascia

Upper Anterior:

Fascia endothoracica

Fascia pretrachialis

Bony landmarks of the DFL:

Lowest Common:

Plantar tarsal bones

Plantar surface of toes

Superior/posterior tibia/fibula

Medial femoral epicondyle

Lower Posterior:

Medial femoral epicondyle

Ischial ramus


Lumbar vertebral bodies

Lower Anterior:

Medial femoral epicondyle

Linea aspera of femur

Lesser trochanter of femur

Lumbar vertebral bodies and transverse processes

Upper Posterior:

Lumbar vertebral bodies

Basilar portion of occiput

Upper Middle:

Lumbar vertebral bodies

Basilar portion of occiput

Cervical transverse processes

Upper Anterior:

Lumbar vertebral bodies

Posterior surface of subtotal


Xiphoid process

Posterior manubrium

Hyoid bone


- - - - -

Pilates is a great way to engage this line properly, therefore setting the foundation for all the other lines to function at their best.

Here's a great video that shows a lunge stretch for the DFL:

- - - - -

And that's it!

We've covered the entire series of myofascial meridian from Thomas Myers' Anatomy Trains - which you can purchase 


 for a more in depth understanding of these lines!

I'll be back the week of the 22nd with a new topic and great tips on pain relief and healthy living.

Be good to yourselves. <3