Representative dynamic displacement and strain maps. (a) shows the anatomical reference for the cartilage joint (b) shows the displacement (dX, dY, and dZ) for the rest, loading condition (1, 3 and 7 minutes into the loading phase), and recovery condition (1, 3 and 7 minutes into the recovery phase). (c) shows the corresponding strain (SX, SY, and SZ) along the X, Y and Z directions for the rest, loading and recovery phases.