Characterization of biomechanical properties of soft biological tissues is important to
understand the tissue mechanics and explore the biomechanics-related mechanisms of
disease, injury, and development. The mechanical testing method is the most
straightforward way for tissue characterization and is considered as verification for in vivo
measurement. Among the many ex vivo mechanical testing techniques, the indentation test
provides a reliable way, especially for samples that are small, hard to fix, and viscoelastic …