Argue C K, Clayton H M
Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada.
Acta Anat (Basel). 1993;146(2-3):179-82. doi: 10.1159/000147442.
The object of this study was to determine the limb support sequence during the transitions from walk to trot and from trot to walk in dressage horses under saddle and to test the null hypothesis that the limb support sequence during the transitions is not related to the level of training. Sixteen dressage horses training at novice to FEI Grand Prix level were videotaped performing an average of 9 transitions each from walk to trot and from trot to walk. The 30-Hz videotapes were viewed in slow motion, and based on the limb support sequence the transitions were categorized into two types. In type 1 transitions there were no intermediate steps between the walk and trot sequences. Type 2 transitions were characterized by intermediate steps, including a single support phase. The Kendall rank-order correlation coefficient showed that a higher level of training was positively associated with an increased percentage of type 1 transitions for both walk-to-trot transitions (p < or = 0.05) and trot-to-walk transitions (p < or = 0.01). No significant preference for initiating or completing the trot on the left or right diagonal was found using the binomial test for individual horses and the Wilcoxon signed-ranks test for the group.
本研究的目的是确定盛装舞步马在鞍具状态下从慢步过渡到快步以及从快步过渡到慢步时的肢体支撑顺序，并检验以下零假设：过渡期间的肢体支撑顺序与训练水平无关。对16匹处于新手到国际马联大奖赛水平训练阶段的盛装舞步马进行录像，每匹马平均进行9次从慢步到快步以及从快步到慢步的过渡。以30赫兹的帧率对录像进行慢动作播放，并根据肢体支撑顺序将过渡分为两种类型。在第1类过渡中，慢步和快步序列之间没有中间步骤。第2类过渡的特点是存在中间步骤，包括单支撑阶段。肯德尔等级相关系数表明，对于从慢步到快步的过渡（p≤0.05）以及从快步到慢步的过渡（p≤0.01），训练水平越高，第1类过渡的百分比增加越显著。使用针对个体马匹的二项式检验和针对群体的威尔科克森符号秩检验，未发现个体马匹在左对角线或右对角线启动或完成快步时有明显偏好。
