Microstructural And Mechanical Properties Of Human Ribs Joseph

(P=0.05), lateral (P=0.01) and posterior specimens (P=0.01) when compared to those of the
male subjects at the corresponding locations.
The next grouping scheme only considers the specimens for the female subjects and
comparisons are made between each location. The peak strain in the anterior specimens
was significantly lower than in the lateral (P=0.01) and posterior (P=0.01) specimens at
fracture. This same pattern holds for the peak stress values as well, showing a significantly
lower peak stress for the anterior specimens when compared to the lateral (P=0.01) and
posterior (P=0.01) specimens. The were no statistically significant difference between the
moment of inertia values among rib specimens from the various locations.
Grouping the male data only and comparing between specimen locations generated
similar patterns as seen in the female specimens. The peak strain measured in the anterior
specimens was significantly lower than those of the lateral (P=0.01) and posterior (P=0.01)
sections. The peak stress values for the anterior specimens were also significantly lower
than the values measured in the posterior (P=0.01) specimens. The moment of inertia
values for the male specimens did show statistically significant differences. The lateral
specimens had a significantly lower moment of inertia value than the anterior (P=0.01) and
posterior (P=0.01) specimens. The moment of inertia of the anterior specimens was
significantly lower than the posterior (P=0.01) specimens.
Comparisons were made between all specimens tested from the individual cadaver
subject as well as specimens from each region. The peak stress values from all locations of
the M2 male subject were significantly higher than the F1 female subject, (P=0.01) the F2
female subject (P=0.02) and the M2 male subject (P=0.02). The anterior specimens from
the M2 male subject demonstrated a higher peak stress than those from the same location of
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