Single limb dynamics of jumping turns in dogs.

Autor: Söhnel K; Institut für Zoologie und Evolutionsforschung, Friedrich-Schiller-Universität Jena, Erbertstraße 1, 07743 Jena, Germany. Electronic address: katja.soehnel@uni-jena.de., Andrada E; Institut für Zoologie und Evolutionsforschung, Friedrich-Schiller-Universität Jena, Erbertstraße 1, 07743 Jena, Germany., de Lussanet MHE; Institut für Sportwissenschaften, Westfälische Wilhelms-Universität Münster, Horstmarer Landweg 62b, 48149 Münster, Germany., Wagner H; Institut für Sportwissenschaften, Westfälische Wilhelms-Universität Münster, Horstmarer Landweg 62b, 48149 Münster, Germany., Fischer MS; Institut für Zoologie und Evolutionsforschung, Friedrich-Schiller-Universität Jena, Erbertstraße 1, 07743 Jena, Germany., Rode C; Institut für Sportwissenschaft, Universität Rostock, Ulmenstraße 69, 18051 Rostock, Germany.
Jazyk: angličtina
Zdroj: Research in veterinary science [Res Vet Sci] 2021 Nov; Vol. 140, pp. 69-78. Date of Electronic Publication: 2021 Aug 08.
DOI: 10.1016/j.rvsc.2021.08.003
Abstrakt: Maneuverability is of paramount importance for many animals, e.g., in predator-prey interactions. Despite this fact, quadrupedal limb behavior in complicated maneuvers like simultaneous jumping and turning are not well studied. Twenty adult sport Border Collies were recorded while jumping over an obstacle and simultaneously turning. Kinetic and kinematic data were captured in synchrony using eight force plates and sixteen infrared cameras. These dogs were familiar with the task through regular participation in the dog sport agility. The experiments revealed that during landing, higher lateral forces acting in the forelimbs compared to hindlimbs. During landing, the outer limbs produced about twice the inner limbs' force in both vertical and lateral directions, showing their dominant contribution to turning. Advanced dogs showed significantly higher lateral impulse and stronger inner-outer limb asymmetry regarding lateral impulses than beginner dogs, leading to significantly stronger turning for advanced dogs. Somewhat unexpected, skill effects rarely explained global limb dynamics, indicating that landing a turn jump is a constrained motion. Constrained motions leave little space for individual techniques suggesting that the results can be generalized to quadrupedal turn jumps in other animals.
(Copyright © 2021 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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