 So a heel-first landing is where you have a very light heel-first landing. It loads the frog, the digital cushion, and supports the navicular bone and holds P2 into the coffin joint and then aligns all of the distal phalanges so that the horse, as he comes over, brings the body over the foot, it's in the proper alignment to take full load and you don't have the interruption or the tearing of the impart ligaments.