Agostinho F S, Rahal S C, Geraldo B, Justolin P L T, Teixeira C R, Lins F L M L, Monteiro F O B
Dr. Sheila C. Rahal, Universidade Estadual Paulista (UNESP), School of Veterinary Medicine and Animal Science, Department of Veterinary Surgery and Anesthesiology, PO Box 560, Rubião Júnior s/n, Botucatu (SP) 18618-000, Brazil, Phone: +55 14 3880 2042, E-mail:
Vet Comp Orthop Traumatol. 2015;28(1):25-9. doi: 10.3415/VCOT-14-05-0081. Epub 2014 Dec 2.
To evaluate the influence on the kinetic and temporospatial parameters of calibration protocols with point and step techniques for a pressure-sensing walkway.
Nine Labrador dogs were used. Two protocols of point calibration technique (C1 and C2) and eight protocols of step calibration technique (C3 to C10) were performed. In C1, weight was added to a stool to match the body mass of each dog. In C2, weight was added to the stool to match a 46.1 kg person. The other eight calibration protocols represented combinations of the following factors: 46.1 kg and 96.1 kg persons, barefoot or wearing sneakers, and stepping onto the platform with one or two feet.
The calibration protocols did not affect the temporospatial variables or percentages of body weight (%BW) distribution. Significant differences were found in both PVI (peak vertical force) and VI (vertical impulse) between barefoot versus wearing sneakers, 46.1 kg versus 96.1 kg person, and stepping onto the platform with one foot versus two feet. When comparing C1 with other protocols, significant differences were observed in PVF and VI for both forelimbs and hindlimbs. When comparing C2 with other protocols, significant differences were observed in PVF and VI for both forelimbs and hindlimbs in all protocols.
The PVF and VI were influenced by the calibration protocol used, but the %BW distribution and temporospatial parameters were not. Using the same calibration protocol for all dogs within the same group eliminated the variability of the kinetic data caused by the calibration.
评估压力感应步道的点技术和步技术校准方案对动力学及时空参数的影响。
使用9只拉布拉多犬。执行了两种点校准技术方案（C1和C2）以及八种步校准技术方案（C3至C10）。在C1中，向凳子添加重量以匹配每只犬的体重。在C2中，向凳子添加重量以匹配一名体重46.1千克的人。其他八种校准方案代表以下因素的组合：体重46.1千克和96.1千克的人、赤脚或穿运动鞋，以及单脚或双脚踏上平台。
校准方案未影响时空变量或体重分布百分比（%BW）。在赤脚与穿运动鞋、体重46.1千克与96.1千克的人以及单脚与双脚踏上平台之间，峰值垂直力（PVI）和垂直冲量（VI）均存在显著差异。将C1与其他方案进行比较时，前肢和后肢的PVF（峰值垂直力）和VI均观察到显著差异。将C2与其他方案进行比较时，在所有方案中前肢和后肢的PVF和VI均观察到显著差异。
PVF和VI受所用校准方案的影响，但%BW分布和时空参数不受影响。在同一组内对所有犬使用相同的校准方案可消除校准导致的动力学数据变异性。
