The Half Curl (aka “chest lift prep”/“ab prep”) is a segmental thoracic flexion in supine. You maintain a stable pelvis/ribs, then curl the head/shoulders until the inferior tips of the scapulae are just light on the mat. Range is modest; quality is everything.
A prone, global back-extension pattern that integrates thoracic extension, glute-ham co-contraction, and scapular organization while the pelvis stays heavy and quiet. Think of it...
History, Mechanics, and Holistic Transformation