Date of download: 11/13/2017 Copyright © ASME. All rights reserved. From: Calibration of Hyperelastic Material Properties of the Human Lumbar Intervertebral Disc under Fast Dynamic Compressive Loads J Biomech Eng. 2011;133(10):101007-101007-10. doi:10.1115/1.4005224 Figure Legend: Types of fracture observed on the 34 simulations: (a) vertebral body collapse of L2 (type 1) (b) superior endplate fracture of L3 (type 2) (c) inferior endplate fracture of L2 (type 3). Fractures are represented by a black zone.