Merkens H W, Schamhardt H C, Van Osch G J, Van den Bogert A J
Department of General and Large Animal Surgery, Faculty of Veterinary Medicine, University of Utrecht, The Netherlands.
Equine Vet J. 1993 Mar;25(2):134-7. doi: 10.1111/j.2042-3306.1993.tb02923.x.
This study was undertaken to establish limb loading patterns of sound horses at the trot, to provide a data base against which results for lame horses could be compared. Ground reaction force (GRF) data were collected from 20 clinically sound Dutch Warmblood horses. The data from at least 5 stance phases of each limb were averaged after standardisation to the animal's body mass and to the stance phase duration and resulted in 'representative' GRF data. The symmetry in the vertical GRF peak amplitudes, impulses and the stance phase duration comparing left and right limbs exceeded 97%. By averaging the 'representative' GRF of the 20 horses a 'standard' GRF pattern of the Dutch Warmblood horse at the trot was constructed. The GRF patterns at the trot, compared with those at the walk, showed only one vertical force peak in forelimbs and hindlimbs (11.59 N/kg and 10.21 N/kg, respectively). The retardatory and propulsory forces were distributed over the forelimbs and hindlimbs in such a way that the forelimbs contributed more to retardation (peak forces 1.13 and 0.79 N/kg), and the hindlimbs more to propulsion (-0.84 and -1.17 N/kg, respectively).
本研究旨在确定健康马匹在小跑时的肢体负荷模式，以提供一个可用于比较跛马结果的数据库。从20匹临床健康的荷兰温血马收集了地面反作用力（GRF）数据。在将数据标准化为动物体重和站立期持续时间后，对每个肢体至少5个站立期的数据进行平均，得出“代表性”GRF数据。左右肢体垂直GRF峰值幅度、冲量和站立期持续时间的对称性超过97%。通过对20匹马的“代表性”GRF进行平均，构建了荷兰温血马小跑时的“标准”GRF模式。与行走时相比，小跑时的GRF模式在前肢和后肢仅显示一个垂直力峰值（分别为11.59 N/kg和10.21 N/kg）。减速力和推进力在前肢和后肢上的分布方式是，前肢对减速的贡献更大（峰值力分别为1.13和0.79 N/kg），而后肢对推进的贡献更大（分别为-0.84和-1.17 N/kg）。
