. Author manuscript; available in PMC: 2023 Feb 1.

Published in final edited form as: J Mech Behav Biomed Mater. 2022 Jan 4;126:105074. doi: 10.1016/j.jmbbm.2022.105074

Table 2.

Left Ventricular Biomechanical Properties After Neonatal Rat Surgery. Fung model parameters $(c, c_{θ θ}, c_{θ L}, c_{L L})$ and biomechanical properties were determined at 6 weeks after either sham surgery or myocardial infarction (MI) for postnatal day 1 (P1) rats.

P1 Biomechanical Properties	P1 Sham (n=14)	P1 MI (n=15)	P-value
$c$	4.40 ± 0.95	4.00 ± 0.55	0.7167
$c_{θ θ}$	6.05 ± 0.81	5.65 ± 0.70	0.7064
$c_{θ L}$	5.48 ± 0.57	5.31 ± 0.70	0.8510
$c_{L L}$	3.06 ± 0.55	3.63 ± 0.88	0.5950
Anisotropy	0.78 ± 0.08	0.80 ± 0.07	0.8600
Circumferential Modulus (kPa)	274.2 ± 14.0	267.9 ± 17.7	0.7847
Longitudinal Modulus (kPa)	277.1 ± 15.5	269.3 ± 17.6	0.7435
Maximum Shear Stress (kPa)	3.95 ± 0.64	3.30 ± 0.83	0.5418