Three definitions of the Core

Functional
Anatomy
CERTIFICATION

THE CORE

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What are the definitions of the Core?

The Core can be defined as the lumbo-pelvic-hip complex, the location of the center of gravity (CoG) in the body, and as an isometric or dynamic stabilizer that initiates movement.

What is the Lumbo-Pelvic-Hip Complex?

The Lumbo-Pelvic-Hip complex is the most anatomically appropriate definition of the Core. It functions as a structural and functional hub for stability and movement, ensuring biomechanical efficiency.

Where is the human Center of Gravity (CoG)?

The CoG is located just in front of the second sacral vertebra (S2) in the pelvic region, approximately 55-57% of a person’s height when standing in a neutral posture.

What is the Line of Gravity (LoG)?

The LoG is the vertical force vector that represents the sum of all gravitational forces. It helps maintain balance and stability in posture and movement.

How does the Line of Gravity affect posture and movement?

In an ideal posture, the LoG passes through anatomical landmarks such as the ear, shoulders, spine, hips, knees, and ankles. It shifts during dynamic activities to maintain balance.

What is Isometric Stabilization of the Core?

Isometric stabilization refers to the Core’s ability to maintain stability without visible movement, ensuring optimal posture, force absorption, and joint stability during both static and dynamic activities.

What muscles play a role in isometric stabilization of the Core?

The Inner Unit muscles such as the transversus abdominis, multifidus, diaphragm, and pelvic floor are essential for isometric stabilization, creating intra-abdominal pressure and supporting spinal integrity.

What is Dynamic Stabilization of the Core?

Dynamic stabilization involves coordinated muscle contractions to maintain spinal and pelvic stability while allowing controlled motion, force transfer, and enhancing agility during dynamic movements.

How does the Core initiate movement?

The Core serves as the initiation point for movement by generating and transmitting force through the kinetic chain, ensuring proximal stability (trunk control) and enhancing distal mobility (limb movement).

Functional Anatomy CERTIFICATION

THE CORE

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