Obliques (aka Criss-Cross family) train segmental thoracic flexion + rotation while the pelvis stays quiet. They build rotational trunk endurance, hip dissociation, and breath...
Deep Dive into Your Trapezius and How to Master Your Anatomy
A prone thoracic extension drill with coordinated arm and leg abduction/adduction (“open/close”) performed at a small hover. Trains posterior chain endurance, scapular organization, hip...