The Spiral Line
Postural function of the SPL is to, like most of the myofascial meridians, maintain balance. The SPL, however, maintains balance across ALL planes. It mediates rotations in the body and works to steady the truck and leg to keep it from folding into rotational collapse.
Muscles of the SPL:
Splenius capitis and cervicis
Rhomboids major/minor
Serratus anterior
External oblique
Internal oblique
Tensor fasciae latae
Tibialis anterior
Internal oblique
Tensor fasciae latae
Tibialis anterior
Fibularis longs
Bicep memories
Erector spine
(this picture shows half of the spiral line muscles, just so you can see the spiral pattern from one side)
Bicep memories
Erector spine
(this picture shows half of the spiral line muscles, just so you can see the spiral pattern from one side)
Connective Tissue (ligmanets, tendons, fascial sheets, etc.) of the SPL:
Abdominal aponeurosis
Linea alba
Iliotibial tract
Sacrotuberous ligament
Sacrolumbar fascia
Bony Landmarks that serve as anchors for the SPL:
Occipital ridge
Mastoid process atlas/axis transverse processes
Lower cervical/Upper thoracic spinous processes
Medial border of the Sapulpa
Lateral ribs
Illiac crest/ASIS
Lateral tibia condyle
1st metatarsal base
Fibular head
Ischial tuberosity
Sacrum
Occipital ridge
Common postural deviations:
Imbalance between left and right
Twisting of the shoulders or hips
Lateral shifts in the body
Stretches for the SPL:
Seated Twist
Triangle Pose
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