Metacarpophalangeal joint loads during bonobo locomotion: model predictions versus proxies.

ABSTRACT: The analysis of internal trabecular and cortical bone has been an informative tool for drawing inferences about behaviour in extant and fossil primate taxa. Within the hand, metacarpal bone architecture has been shown to correlate well with primate locomotion; however, the extent of morphological differences across taxa is unexpectedly small given the variability in hand use. One explanation for this observation is that the activity-related differences in the joint loads acting on the bone are simply smaller than estimated based on commonly used proxies (i.e. external loading and joint posture), which neglect the influence of muscle forces. In this study, experimental data and a musculoskeletal finger model are used to test this hypothesis by comparing differences between climbing and knuc

SUBMITTER: Synek A 

PROVIDER: S-EPMC7115223 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature