Seating Dynamics Dynamic Rocker Back interface demonstration
This video demonstrates how the elastomer is compressed, absorbing forces, and then returns the back to upright.
Product Info: https://www.seatingdynamics.com/dynamic-rockerback/
Cast Study / Blog: https://www.seatingdynamics.com/2016/10/17/3-reasons-provide-dynamic-posterior-movement-trunk-pelvis/