05/21/2026
THE BODY DOES NOT WORK IN ISOLATION
Your body is not just a collection of separate muscles.
It functions as an interconnected system of muscles, fascia, joints, ligaments, and nerves that constantly work together to create movement, transfer force, stabilize the spine, and maintain balance.
One of the most important of these systems is called the Posterior Oblique Subsystem.
This cross-body sling system connects:
* lats
* glutes
* thoracolumbar fascia
* hamstrings
* spinal stabilizers
* pelvic stabilizers
Its job is to help transfer force efficiently between the upper and lower body while stabilizing the spine and pelvis.
Every time you:
* walk
* run
* sprint
* rotate
* throw
* carry
* climb stairs
* lift from the ground
your body relies on this system.
One of its key functions is connecting the lat on one side of the body to the opposite glute through the thoracolumbar fascia.
Example:
When your right arm swings backward during walking or running, your left glute activates simultaneously.
That diagonal cross-body pattern helps create rotational stability, efficient movement, and force transfer.
This is one reason why weak glutes, poor trunk stability, or dysfunctional movement patterns can contribute to:
* low back pain
* SI joint discomfort
* hamstring tightness
* instability
* inefficient movement mechanics
The body was designed to function as a connected system, not isolated parts.
This is why integrated training matters.
Carries, crawling patterns, split stance work, rotational exercises, unilateral training, and posterior chain development all help restore better movement efficiency and coordination throughout the body.
The goal is not just stronger muscles.
The goal is better communication and coordination throughout the entire body.