Mechanical Behavior of Subcutaneous and Visceral Abdominal Adipose Tissue in Patients with Obesity

The mechanical characterization of adipose tissues is important for various medical purposes, including plastic surgery and biomechanical applications, such as computational human body models the simulation surgical procedures or injury prediction, example, in evaluation vehicle crashworthiness. In this context, measurement subcutaneous tissue (SAT) visceral (VAT) properties relation to subject characteristics may be really relevant. aim work was properly characterize response patients with obesity. Then, data were exploited develop a reliable finite element model characterized by constitutive material that accounted nonlinear elasticity time dependence. Mechanical tests have been performed on both SAT VAT specimens, which harvested from severe obesity during standard laparoscopic sleeve gastrectomy intervention. experimental campaign included indentation tests, permitted us obtain initial/final stiffnesses each specimen. Statistical results revealed higher statistical stiffness than VAT, an 1.65 (SD ± 0.29) N/30.30 20) N compared 1.29 0.30) N/21.00 16) N. Moreover, showed gender, BMI, age did not significantly affect stiffness. used identification parameters inserted model. Such mechanics can starting point future development more accurate and, general, optimization numerous applications.