Ch 1 – Part 6 – Butterfly T12-L1 – SINGLE Please sign up for the course before starting the lesson. The best HVLA techniques for the treatment of the back in the lower area (lumbar, sacroiliac joint, thoraco-lumbar junction). Ch 1 - Part 5 - Banana - SINGLE Ch 1 - Part 7 - Butterfly - SINGLE Back to: CH 1 – iThrust Online > Chapter 1 : LOWER BACK AND HIP