Variance associated with the use of relative velocity for force platform gait analysis in a heterogeneous population of clinically normal dogs
| Autor: | Brett Nemke, Nicola J. Volstad, Peter Muir |
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| Rok vydání: | 2016 |
| Předmět: |
Male
medicine.medical_specialty 040301 veterinary sciences Withers Impulse (physics) Article Cohort Studies 0403 veterinary science Acceleration Dogs Species Specificity Reference Values Statistics medicine Animals Force platform Ground reaction force Gait Mathematics General Veterinary 0402 animal and dairy science Relative velocity 04 agricultural and veterinary sciences 040201 dairy & animal science Surgery Gait analysis Female Animal Science and Zoology |
| Zdroj: | The Veterinary Journal. 207:80-84 |
| ISSN: | 1090-0233 |
| DOI: | 10.1016/j.tvjl.2015.08.014 |
| Popis: | Factors that contribute to variance in ground reaction forces (GRFs) include dog morphology, velocity, and trial repetition. Narrow velocity ranges are recommended to minimize variance. In a heterogeneous population, it may be preferable to minimize data variance and efficiently perform force platform gait analysis by evaluation of each individual dog at its preferred velocity, such that dogs are studied at a similar relative velocity (V*). Data from 27 normal dogs were obtained including withers and shoulder height. Each dog was trotted across a force platform at its preferred velocity, with controlled acceleration (±0.5 m/s(2)). V* ranges were created for withers and shoulder height. Variance effects from 12 trotting velocity ranges and associated V* ranges were examined using repeated-measures analysis-of-covariance. Mean bodyweight was 24.4 ± 7.4 kg. Individual dog, velocity, and V* significantly influenced GRF (P |
| Databáze: | OpenAIRE |
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