Presented are the values, which have been measured at the lowest strain and lowest strain rate to approximate the elastic behavior of the tissues at rest, that is, at small deformations. The values of Young’s modulus for any given tissue measured using different methods of deformation typically span several orders of magnitude [32]. Results for indentation are typically lower than for tensile tests. For unambiguity, testing methods are mentioned. Mechanical testing methods are summarized in Table 2.