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Table 1 Relationships used in the assignation of material property in modeling

From: Femoral mechanical performance of precocial and altricial birds: a simulation study

Species

Age or stagea

HU-ρ

ρ-E

Pigeon

4 to 14 days

\(\rho =5.47\times {10}^{-4}HU+0.31\)

\(E=995.20\times {\rho }^{4.74}\)

Other

\(\rho =3.20\times {10}^{-4}HU+0.15\)

Cabot’s Tragopan

H1

\(\rho =2.67\times {10}^{-4}HU+0.12\)

\(E=2588.65\times {\rho }^{4.32}\)

Other

\(\rho =5.65\times {10}^{-4}HU+0.33\)

  1. aBirds were grouped according to the size of the femora; each group has its specific scan settings