Kapatkin Amy S, Arbittier Gregg, Kass Philip H, Gilley Robert S, Smith Gail K
Department of Clinical Studies-PHL, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Vet Surg. 2007 Aug;36(6):605-8. doi: 10.1111/j.1532-950X.2007.00311.x.
To determine the effects of 2 different, commonly used surfaces with different coefficients of friction on ground reaction forces in normal dogs.
Prospective, observational, single cross-over study.
Dogs (n=10) with no gait abnormalities.
Dogs were acclimated to the force plate and 5 valid trials for each dog and each limb were recorded. Velocity and acceleration were tightly controlled. Each dog was tested on both surfaces sequentially in different sequences. Data analysis was done on peak vertical force, peak impulse, breaking and propulsion peak forces and impulses. Three-way repeated measures analysis of variance was used to separately evaluate the effect of floor type on force plate measures in fore and hind limbs, while controlling for side (left versus right) and experimental replicate. P-values<.05 were considered significant. Mean force and 95% confidence interval for the 6 variables analyzed for all limbs on each surface were calculated.
There were no significant differences in ground reaction forces between the linoleum and the carpet surface for thoracic or pelvic limbs for all gait variables measured. There were no significant differences between each individual gait trial per dog between the right and left thoracic limbs trials nor differences between the right and left pelvic limb trials.
Normal dogs had no change in their ground reaction forces on linoleum and carpet surfaces.
Kinetic results from multi-center or comparative trials will not be affected by use of either linoleum or carpet surfaces.
确定两种不同的、常用的具有不同摩擦系数的表面对正常犬地面反作用力的影响。
前瞻性、观察性、单交叉研究。
无步态异常的犬（n = 10）。
使犬适应测力台，并记录每只犬每个肢体的5次有效试验。速度和加速度得到严格控制。每只犬按不同顺序依次在两种表面上进行测试。对垂直力峰值、冲量峰值、制动和推进力峰值及冲量进行数据分析。采用三因素重复测量方差分析，在控制侧别（左与右）和实验重复的同时，分别评估地板类型对前肢和后肢测力台测量结果的影响。P值<0.05被认为具有显著性。计算每个表面上所有肢体分析的6个变量的平均力和95%置信区间。
对于所测量的所有步态变量，在油毡和地毯表面上，胸肢或盆腔肢的地面反作用力无显著差异。每只犬的每次个体步态试验中，右胸肢试验和左胸肢试验之间以及右盆腔肢试验和左盆腔肢试验之间均无显著差异。
正常犬在油毡和地毯表面上的地面反作用力没有变化。
多中心或比较试验的动力学结果不会受到使用油毡或地毯表面的影响。
