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Pressure Mat Analysis of Walk and Trot Gait Characteristics in 66 Normal Small, Medium, Large, and Giant Breed Dogs

By Maria A. Fahie, Jonathan C. Cortez, Marc Ledesma, Yuhua Su

Category Journal Articles
Abstract

Objectives: To document temporospatial variables and gait symmetry measured by the GAITRite® system for normal, healthy dogs at the walk and trot with the leash side recorded. Study Design: Observational, prospective, cohort study. Sample Population: 66 healthy dogs of various common breeds with no evidence of lameness that were small (<10 kg), medium (10-<25 kg), large (25-<40 kg), or giant (≥40 kg). Methods: Dogs walked and trotted at their preferred velocity on a pressure sensing walkway system. Video observation confirmed inclusion criteria were met for three valid trials at each gait for each dog. Coefficients of variance were used to summarize the data for analysis. Fore and hindlimb ratios were compared. Gait symmetry was assessed with the leash on the left and right side. Results: Coefficients of variation for gait parameters ranged from 20 to 28% for all except velocity and hind reach. There was no statistically significant difference in differences in fore and hindlimb ratios for stance %, GLS, TPI, or step:stride ratio, across weight categories or between walk and trot. Less than 8% of normal dogs had a GLS score <90 (indicating lameness). Leash side did influence gait symmetry, since GLS, TPI, and step:stride all had statistically significant differences in means between leash side, irrelevant of the weight category or gait. Conclusions and Clinical Relevance: This system allowed simple, reliable gait assessment and values reported may be considered normal reference ranges for temporospatial variables collected with this system within the weight ranges and gaits reported. Controlling leash side and patient size is recommended for therapeutic intervention studies.

Submitter

Marcy Wilhelm-South

Purdue University

Date 2018
Publication Title Frontiers in Veterinary Science
Pages 7
DOI 10.3389/fvets.2018.00256
URL https://www.frontiersin.org/articles/10.3389/fvets.2018.00256/full
Language English
Additional Language English
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Tags
  1. Animal roles
  2. Breeds
  3. Dogs
  4. Gait
  5. Mammals
  6. open access
  7. peer-reviewed
  8. Pets and companion animals
  9. size
Badges
  1. open access
  2. peer-reviewed