A simple model predicts energetically optimised jumping in dogs

Katherine A.J. Daniels*, J. F. Burn

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

170 Downloads (Pure)

Abstract

It is generally accepted that animals move in a way that minimises energy use during regular gait and there is evidence that the principle might extend more generally to locomotor behaviour and manoeuvres. Jumping during locomotion is a useful manoeuvre that contributes to the versatility of legged locomotion and is within the repertoire of many terrestrial animals. We describe a simple ballistic model that can be used to identify a single unique trajectory of the body s centre of mass that minimises the mechanical work to initiate a jump, regardless of the approach velocity or take-off position. The model was used to show that domestic dogs (Canis lupus familiaris) demonstrate complex anticipatory control of locomotor behaviour by systematically using jump trajectories close to those that minimised the mechanical energy of jumps over raised obstacles. It is unclear how the dogs acquired the complex perception and control necessary to exhibit the observed behaviour. The model may be used to investigate whether animals adopt energetically optimised behaviour in any similarly constrained ballistic task.

Original languageEnglish
Article numberjeb167379
Number of pages6
JournalJournal of Experimental Biology
Volume221
Issue number9
Early online date4 May 2018
DOIs
Publication statusPublished - May 2018

Keywords

  • Biomechanics
  • Energetics
  • Locomotion
  • Manoeuvre
  • Optimisation

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