Caudal paw displacement during movement initiation and its implications for possible injury mechanisms

Angle, T. Craig; Gillette, Robert; Weimar, WH

doi:10.3415/vcot-11-07-0106

Cited by 6 publications

(1 citation statement)

References 8 publications

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“…Even normal dogs without orthopedic or neurologic disease experience routine caudal paw displacement, or slippage, on both non-vegetated and vegetated surfaces (1). Braking and propulsion forces, however, do not seem to be altered during compensation for the coefficient of friction of different services (2).…”

Section: Introductionmentioning

confidence: 99%

Dr. Buzby’s ToeGrips® Application Results in Minimal Changes in Kinetic Gait Parameters in Normal Dogs

2017

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Poor traction on slick surfaces is difficult for dogs with neurologic deficits, osteoarthritis, or recovering from injury or surgery. Many dogs respond inappropriately to slick surfaces by decreasing digital pad-floor contact and extending their toenails. A device marketed to increase paw-floor friction in dogs was evaluated. Fifteen normal dogs underwent kinetic gait analysis before and after application of Dr. Buzby’s ToeGrips®. Ground reaction forces, including vertical peak force (VPF) and impulse for each limb, were measured and compared between pre- and post-application values. Stance time was significantly increased in all limbs after toe grip application. Stride velocity was slower in all limbs but significantly slower only in the left forelimb. VPF was significantly deceased in both hindlimbs after toe grip application, but the decrease was within the group SDs. Vertical impulse was significantly increased in both forelimbs and in the right hindlimb. Dr. Buzby’s ToeGrips® result in a slower gait, with slightly decreased VPF in the hindlimbs and increased effort for propulsion kinetic changes were of minor magnitude and unlikely to be clinically relevant.

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Section: Introductionmentioning

confidence: 99%

Dr. Buzby’s ToeGrips® Application Results in Minimal Changes in Kinetic Gait Parameters in Normal Dogs

2017

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The effect of spine morphology on rapid acceleration in quadruped robots

Fisher

Shield

Patel

2017

2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)

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The effects of surface compliance on greyhound galloping dynamics

Hayati

Eager

Walker

2019

Proceedings of the Institution of Mechanical Engineers, Part K:

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Greyhounds are the fastest breed of dog and can reach a speed up to 68 km/h. These racing animals sustain unique injuries seldom seen in other breeds of dog. The highest rate of life-threatening injuries in these dogs is hock fracture, mostly of the right hind-leg. One of the main injury contributing factors in this sport is the track surface. There are some studies into the ideal track surface composition for greyhound racing but almost no study has investigated the body–surface interaction. Accordingly, the purpose of this work is to study the effect of surface compliance on the galloping dynamics of greyhounds during the hind-leg single-support phase which is a critical phase in hock injuries. Thus, a three degrees-of-freedom model for the greyhound body and substrate surface is designed using spring-loaded inverted pendulum method. The results showed 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). The main contribution of this work is designing a mathematical model to predict the dynamics of the hock and the hind-leg as the most vulnerable body parts in greyhounds. Furthermore, this model can be used to optimise the greyhound track surface composition and therefore improve the safety and welfare within the greyhound racing industry.

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Caudal paw displacement during movement initiation and its implications for possible injury mechanisms

Abstract: These findings demonstrate the extreme kinematics placed on the canine body during movement initiation, which might further the understanding of the mechanism of injury and contribute to enhanced surgical and rehabilitation techniques.

Cited by 6 publications

References 8 publications

Dr. Buzby’s ToeGrips® Application Results in Minimal Changes in Kinetic Gait Parameters in Normal Dogs

Dr. Buzby’s ToeGrips® Application Results in Minimal Changes in Kinetic Gait Parameters in Normal Dogs

The effect of spine morphology on rapid acceleration in quadruped robots

The effects of surface compliance on greyhound galloping dynamics

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