Comparison of vertical forces in normal greyhounds between force platform and pressure walkway measurement systems
Comparison of vertical forces in normal greyhounds between force platform and pressure walkway measurement systems
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DOI：
10.1055/s-0038-1632766
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发表时间：
2003-01-01
影响因子：
1.3
通讯作者：
Ritter, MJ
中科院分区：
文献类型：
--
作者：
Besancon, MF;Conzemius, MG;Ritter, MJ
8只健康成年灰狗，体重27.30~36.36 kg，左前肢的垂直冲动(PVF)和垂直冲动(VI)数据。步行速度和加速度分别限制在0.9m/S和-9.1~0.1m/S(2)范围内。对两个系统中每只狗的前20项有效试验的数据进行了分析。力被归一化，并以狗体重的百分比表示。在这两组试验中，速度和加速值在统计学上没有差异。16条肢体中有2条肢体(前肢1/8，后肢1/8)的闭塞变异性经t检验有统计学差异。结果表明，Tekcan人行道系统是AMT1型或6-5型测力平台产生垂直冲量数据的一种可行的替代方案。在统计上，两个系统的最大垂直力值有显著差异，可能与校准时间有关，但它们的临床相关性似乎可以忽略不计。
Peak vertical impulse (PVF) and vetical impulse (VI) data were collected from the left forelimbs on ipsilateral hind limbs of eight healthy adult Greyhound dogs ranging in mass from 27.30 to 36.36 kg. Walking velocity and acceleration were restricted to ranges of 0.9 to 1.1 m/s and -9.1 to 0.1 m/s(2), resepctively. Data from the first 20 valid trials were analyzed for each dog on both systems. Forces were normalized and expressed as a percent of the dog's body weight. Velocity and acceleration values were not statistically different in either set of trials. Evaluation of intra-clog variability via t-test revealed a statistical difference in two of 16 limbs (1/8 forelimb, 1/8 hind limb). The results indicate that the Tekscan walkway system is a viable alternative to the AMT1 model OR6-5 force platform for the generation of vertical impulse data. Statistically significant differences in peak vertical force values were noted between the two systems and were likely related to calibration times, but their clinical relevance appears negligible.