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The locomotor kinematics and ground reaction forces of walking giraffes.

Basu, C K; Wilson, A M; Hutchinson, J R

Authors

C K Basu

A M Wilson

J R Hutchinson



Abstract

Giraffes (Giraffa camelopardalis Linnaeus 1758) possess specialised anatomy. Their disproportionately elongate limbs and neck confer recognised feeding advantages, but little is known about how their morphology affects locomotor function. In this study, we examined the stride parameters and ground reaction forces from three adult giraffes in a zoological park, across a range of walking speeds. The patterns of GRFs during walking indicate that giraffes, similar to other mammalian quadrupeds, maintain a forelimb-biased weight distribution. The angular excursion of the neck has functional links with locomotor dynamics in giraffes, and was exaggerated at faster speeds. The horizontal accelerations of the neck and trunk were out of phase, compared with the vertical accelerations which were intermediate between in and out of phase. Despite possessing specialised morphology, giraffes’ stride parameters were broadly predicted from dynamic similarity, facilitating the use of other quadrupedal locomotion models to generate testable hypotheses in giraffes.

Citation

Basu, C. K., Wilson, A. M., & Hutchinson, J. R. (2019). The locomotor kinematics and ground reaction forces of walking giraffes. Journal of Experimental Biology, 222(22), https://doi.org/10.1242/jeb.159277

Journal Article Type Article
Acceptance Date Nov 7, 2018
Publication Date Jan 1, 2019
Deposit Date Dec 20, 2018
Publicly Available Date Jun 4, 2019
Journal JOURNAL OF EXPERIMENTAL BIOLOGY
Print ISSN 0022-0949
Publisher The Company of Biologists
Peer Reviewed Peer Reviewed
Volume 222
Issue 22
DOI https://doi.org/10.1242/jeb.159277
Public URL https://rvc-repository.worktribe.com/output/1384465

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