High speed galloping in the cheetah (Acinonyx jubatus) and the racing greyhound (Canis familiaris): spatio-temporal and kinetic characteristics

@article{Hudson2012HighSG,
  title={High speed galloping in the cheetah (Acinonyx jubatus) and the racing greyhound (Canis familiaris): spatio-temporal and kinetic characteristics},
  author={Penny E. Hudson and Sandra A. Corr and Alan M. Wilson},
  journal={Journal of Experimental Biology},
  year={2012},
  volume={215},
  pages={2425 - 2434}
}
The cheetah and racing greyhound are of a similar size and gross morphology and yet the cheetah is able to achieve a far higher top speed. [...] Key Result By combining force plate and high speed video data of galloping cheetahs and greyhounds, we show how the cheetah uses a lower stride frequency/longer stride length than the greyhound at any given speed.Expand
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The effects of surface compliance on greyhound galloping dynamics
  • H. Hayati, D. Eager, P. Walker
  • Biology
  • Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics
  • 2019
TLDR
A three degrees-of-freedom model for the greyhound body and substrate surface is designed using spring-loaded inverted pendulum method and shows that forces acting on the hind-leg were substantially affected when the surface compliance altered from the relatively hard (natural grass) to a relatively soft surface (synthetic rubber). Expand
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TLDR
It is proposed that the cheetah powers acceleration using its extensive back musculature, which possesses several unique adaptations for high‐speed locomotion and fast accelerations, when compared to the racing greyhound. Expand
Functional anatomy of the cheetah (Acinonyx jubatus) forelimb
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The musculoskeletal anatomy of the cheetah forelimb is described and quantify and it is suggested that this limb is resisting large ground reaction force joint torques and therefore is not functioning as a simple strut during the high‐speed manoeuvring in hunting. Expand
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Say that prey ‘is usually knocked down by the force of the cheetah's charge’ (Nowak, 1999) is incorrect, because this predator actually relies on the claw of the first digit of the forepaw, the so-called dewclaw, to hook the fleeing prey off balance. Expand
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A high-speed motion picture camera was used to record the gaits of a captive cheetah. A previous study (Hildebrand, J. Mamm., 40: 481–495, 1959) is corrected (in regard to estimated speed and rate ofExpand
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The morphology of the cheetah can be explained, at least in part, as a product of heterochrony in which the development of the middle phalanx is truncated at an earlier stage than is typical of the adults of other felids. Expand
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Both the behavioural and the morphological analyses confirm the special role of the dewclaw in the cheetah: a strong hook to stop running animals by using the energy of the victim itself. However,Expand
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TLDR
This paper argues that the fundamental difference between these gaits is determined by which set of limbs, fore or hind, initiates the transition of the centre of mass from a downward–forward to upward–forward trajectory that occurs between the main ballistic portions of the stride when the animal makes contact with the ground. Expand
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SYNOPSIS: Most mammals use symmetrical gaits (such as the trot) at moderate speeds but change to asymmetrical gaits (gallops) at high speeds. A mathematical model of quadrupedal gaits failed to showExpand
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TLDR
In general, the MHC isoform characteristics of the hindlimb muscles matched the daily activity patterns of these felids: the tiger has daily demands for covering long distances, whereas the cheetah has requirements for speed and power. Expand
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