A prone thoracic extension series that teaches you to create axial length and segmental extension from the mid-spine while the pelvis stays heavy and quiet. It balances the flexion-heavy ab work, restores posture, and trains scapular organization.

Your Bones, Joints, and the Suprising Engineering of Movement

Teaser is an advanced segmental thoracic flexion to a balanced V-sit with controlled lever management (legs/arms) and an articulate return. It integrates rib–pelvis organization, hip dissociation, and breathing under load.

Neck Pull is an advanced Roll-Up family exercise performed with hands behind head, elbows wide, increasing lever length and load across the anterior chain while demanding thoracic flexion control and—in the second variation—flat-back hinge competency. It’s a posture re-educator: length first, then segment.

A segmental spinal flexion (and extension on the return) performed supine → seated → forward flexion, then reversing to articulate down. Trains rib–pelvis integration, eccentric control, and breathing under load. It’s the poster child for peel, don’t yank.

Obliques (aka Criss-Cross family) train segmental thoracic flexion + rotation while the pelvis stays quiet. They build rotational trunk endurance, hip dissociation, and breath coordination—core skills for gait, sport, and daily turning.

A hip-centric circumduction drill done supine that trains hip dissociation (femur moving in the socket) while the pelvis and rib cage stay quiet. Builds control through multiple planes (sagittal ↔ frontal ↔ transverse) with modest range.

These are core pieces of the Classical Ab Series. They train segmental thoracic flexion and hip dissociation while the trunk stays organized (anti-extension, anti-rotation). Breath shapes the abdomen from the inside—your “free core brace.”

Your body's user manual: unpacking movement and why natural isn't always neutral.