Mechanical Behaviour of Plantar Adipose Tissue: From Experimental Tests to Constitutive Analysis.

Autor:	Pettenuzzo S; Department of Civil, Environmental and Architectural Engineering, University of Padova, 35131 Padova, Italy., Belluzzi E; Musculoskeletal Pathology and Oncology Laboratory, Department of Surgery, Oncology and Gastroenterology, University of Padova (DiSCOG), Via Giustiniani 3, 35128 Padova, Italy.; Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padova, Via Giustiniani 3, 35128 Padova, Italy.; Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy., Pozzuoli A; Musculoskeletal Pathology and Oncology Laboratory, Department of Surgery, Oncology and Gastroenterology, University of Padova (DiSCOG), Via Giustiniani 3, 35128 Padova, Italy.; Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padova, Via Giustiniani 3, 35128 Padova, Italy.; Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy., Macchi V; Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy.; Department of Neuroscience, Institute of Human Anatomy, University of Padova, 35121 Padova, Italy.; Veneto Region Reference Center for the Preservation and Use of Gifted Bodies, Veneto Region, 35100 Padua, Italy., Porzionato A; Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy.; Department of Neuroscience, Institute of Human Anatomy, University of Padova, 35121 Padova, Italy.; Veneto Region Reference Center for the Preservation and Use of Gifted Bodies, Veneto Region, 35100 Padua, Italy., Boscolo-Berto R; Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy.; Department of Neuroscience, Institute of Human Anatomy, University of Padova, 35121 Padova, Italy.; Veneto Region Reference Center for the Preservation and Use of Gifted Bodies, Veneto Region, 35100 Padua, Italy., Ruggieri P; Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padova, Via Giustiniani 3, 35128 Padova, Italy.; Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy., Berardo A; Department of Civil, Environmental and Architectural Engineering, University of Padova, 35131 Padova, Italy.; Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy.; Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy., Carniel EL; Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy.; Department of Industrial Engineering, University of Padova, 35131 Padova, Italy., Fontanella CG; Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy.; Department of Industrial Engineering, University of Padova, 35131 Padova, Italy.
Jazyk:	angličtina
Zdroj:	Bioengineering (Basel, Switzerland) [Bioengineering (Basel)] 2023 Dec 31; Vol. 11 (1). Date of Electronic Publication: 2023 Dec 31.
DOI:	10.3390/bioengineering11010042
Abstrakt:	Plantar adipose tissue is a connective tissue whose structural configuration changes according to the foot region (rare or forefoot) and is related to its mechanical role, providing a damping system able to adsorb foot impact and bear the body weight. Considering this, the present work aims at fully describing the plantar adipose tissue's behaviour and developing a proper constitutive formulation. Unconfined compression tests and indentation tests have been performed on samples harvested from human donors and cadavers. Experimental results provided the initial/final elastic modulus for each specimen and assessed the non-linear and time-dependent behaviour of the tissue. The different foot regions were investigated, and the main differences were observed when comparing the elastic moduli, especially the final elastic ones. It resulted in a higher level for the medial region (89 ± 77 MPa) compared to the others (from 51 ± 29 MPa for the heel pad to 11 ± 7 for the metatarsal). Finally, results have been used to define a visco-hyperelastic constitutive model, whose hyperelastic component, which describes tissue non-linear behaviour, was described using an Ogden formulation. The identified and validated tissue constitutive parameters could serve, in the early future, for the computational model of the healthy foot.
Databáze:	MEDLINE
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