Fahie Maria A, Cortez Jonathan C, Ledesma Marc, Su Yuhua
College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA, United States.
VCA Yorba Regional Animal Hospital, Anaheim, CA, United States.
Front Vet Sci. 2018 Oct 16;5:256. doi: 10.3389/fvets.2018.00256. eCollection 2018.
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. Observational, prospective, cohort study. 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). 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. 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. 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.
记录正常健康犬在行走和小跑时，通过GAITRite®系统测量的时空变量和步态对称性，并记录牵绳侧。观察性、前瞻性队列研究。66只各种常见品种的健康犬，无跛行迹象，分为小型（<10kg）、中型（10-<25kg）、大型（25-<40kg）或巨型（≥40kg）。犬以其偏好的速度在压力感应步道系统上行走和小跑。视频观察确认每只犬在每个步态下都进行了三次有效试验，符合纳入标准。使用变异系数总结数据进行分析。比较前后肢比例。在左侧和右侧牵绳的情况下评估步态对称性。除速度和后肢伸展外，所有步态参数的变异系数范围为20%至28%。在不同体重类别之间或行走与小跑之间，站立百分比、地面反作用力峰值（GLS）、步幅指数（TPI）或步幅比的前后肢比例差异无统计学意义。不到8%的正常犬GLS评分<90（表明跛行）。牵绳侧确实会影响步态对称性，因为无论体重类别或步态如何，GLS、TPI和步幅比在牵绳侧之间的平均值均有统计学显著差异。该系统允许进行简单、可靠的步态评估，报告的值可被视为在此系统收集的体重范围和步态内时空变量的正常参考范围。建议在治疗干预研究中控制牵绳侧和患者大小。
