Ape femoral-humeral rigidities and arboreal locomotion.

ABSTRACT:

Objectives

This study investigates patterns of bone functional adaptations in extant apes through comparing hindlimb to forelimb bone rigidity ratios in groups with varying levels of arboreality.

Materials and methods

Using CT scans, bone rigidity (J) was calculated at three regions of interest (ROI) along femoral and humeral diaphyses in Homo, Pongo, Pan, and Gorilla with further comparisons made between species and subspecies divisions within Pan and Gorilla.

Results

Consistent with previous work on extant hominoids, species exhibited differences in midshaft femoral to humeral (F/H) rigidity ratios. Results of the present study confirm that these midshaft differences extend to 35% and 65% diaphyseal ROIs. Modern humans, exhibiting larger ratios, and orangutans, exhi

SUBMITTER: Sarringhaus L 

PROVIDER: S-EPMC9828227 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature