Date of download: 9/26/2017 Copyright © ASME. All rights reserved. From: Stress Analyses Coupled With Damage Laws to Determine Biomechanical Risk Factors for Deep Tissue Injury During Sitting J Biomech Eng. 2008;131(1):011003-011003-13. doi:10.1115/1.3005195 Figure Legend: Effects of the level of muscle atrophy on maximal principal compression stress, principal tension stress, shear stress, and von Mises stress in muscle tissue for a soft cushion (tangent elastic modulus Ec=40kPa), a harder cushion (Ec=100kPa), and a semirigid support (Ec=1GPa).

Date of download: 9/26/2017 Copyright © ASME. All rights reserved. From: Stress Analyses Coupled With Damage Laws to Determine Biomechanical Risk Factors for Deep Tissue Injury During Sitting J Biomech Eng. 2008;131(1):011003-011003-13. doi:10.1115/1.3005195 Figure Legend: Flowchart of the algorithm used in this study for simulating the onset and progression of deep tissue injury. The algorithm incorporates finite element modeling as well as injury threshold and damage-stiffening law for muscle tissue obtained in previous experimental studies . IT, ischial tuberosity.

Date of download: 9/26/2017 Copyright © ASME. All rights reserved. From: Stress Analyses Coupled With Damage Laws to Determine Biomechanical Risk Factors for Deep Tissue Injury During Sitting J Biomech Eng. 2008;131(1):011003-011003-13. doi:10.1115/1.3005195 Figure Legend: Mechanical properties measured for the cushion products in uniaxial compression tests. The tangent elastic modulus of the cushion at 80% strain, Ec, is plotted against the cushion’s density.