Dr Cuan Wayne Coetzee on Instagram: "Spinal Mobility Meets Pelvic Rotation - Flexion Extension Flow One foot raised. One foot grounded. A full flexion–extension wave from tailbone to fingertips. Simple but neurologically powerful. 1️⃣ Setup Place one foot on a block, book or brick. The raised foot twists your pelvis creating a six-dimensional rotation (three planes on each side). From the bottom, spine fully flexed, arms rounded and shoulders internally rotated. Then, as you rise, extend to open