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Study and parameters identification of a rheological model for excised quiescent cardiac muscle

1981; Elsevier BV; Volume: 14; Issue: 1 Linguagem: Inglês

10.1016/0021-9290(81)90075-0

1873-2380

A.C. Capelo, V. Comincioli, R Minelli, Corrado Poggesi, Carlo Reggiani, L Ricciardi,

Elasticity and Material Modeling

A non-linear rheological model has been used to represent mathematically the behaviour of isolated quiescent preparations of rat myocardium. The parameters have been identified by means of numerical methods and the experimental responses of the specimens to several stress or strain histories have been predicted by the model. Results obtained show that the model has a good predictive ability and can discriminate among the responses of specimens with different mechanical behaviour (papillary muscles of young and aged rats and papillary muscles contractured in hypertonic solutions).