Previous Image Next Image layer slide Depiction of the deep fascia layers. In A, the layers are spaced apart and free to slide on each other. In B, a fascial densification is shown where the tissue slide and space are compromised. This disrupts movement between layers which can exert a negative impact on the surrounding structures, such as joints or organs. Used with permission from Antonio Stecco. MD, PhD. Fascial layers sliding versus densified.