Figure 6.

Average internal soft tissue shear (A) and effective (B) stresses at the vicinity of the sacral bone, ie, in a block of skin and subdermal tissues (taken together), versus the extent of body migration in bed (MIB). Volumetric exposures to the deeper tissue stresses exhibit a similar trend, where a growing tissue volume within the pre‐defined volume of interest (VOI) is exposed to greater shear (C) and effective (D) stresses as the MIB increases. The top frame depicts the tissue VOI which has been used here to determine deep tissue exposures to stresses, as function of the MIB