Zhao J, Marghitu D B, Schumacher J
Department of Mechanical Engineering, 1418 Wiggins Hall, Auburn University, Auburn, AL, 36849, USA.
Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL, 36849, USA.
Heliyon. 2020 Apr 8;6(4):e03726. doi: 10.1016/j.heliyon.2020.e03726. eCollection 2020 Apr.
Tranquilization of horses with acepromazine has been used to suppress erratic head movements and increase the accuracy of a lameness examination. Some equine clinicians believe that tranquilization with acepromazine will make lameness more evident by causing the horse to focus on adjusting its gait to avoid limb pain rather than its surroundings. The aim of this study was to investigate the effect of acepromazine on the Lyapunov exponents of lame horses. Ten lame horses were trotted in a straight line for a minimum of 25 strides. Kinematic data created by head movement were analyzed. Nonlinear analysis methods were applied to lame horse locomotion. The effect of acepromazine on the largest Lyapunov exponents of the lame horses were investigated. There was no statistically significant effect of acepromazine on the maximum value of Lyapunov exponents. The nonlinear dynamic methods can be used to analyze the gait in horses. Local stability of horse gait remains unchanged after the administration of acepromazine.
使用乙酰丙嗪使马镇静已被用于抑制不稳定的头部运动，并提高跛行检查的准确性。一些马科临床医生认为，用乙酰丙嗪镇静会使马专注于调整步态以避免肢体疼痛而非周围环境，从而使跛行更加明显。本研究的目的是调查乙酰丙嗪对跛马李雅普诺夫指数的影响。十匹跛马沿直线小跑至少25步。分析由头部运动产生的运动学数据。将非线性分析方法应用于跛马的运动。研究了乙酰丙嗪对跛马最大李雅普诺夫指数的影响。乙酰丙嗪对李雅普诺夫指数的最大值没有统计学上的显著影响。非线性动力学方法可用于分析马的步态。给予乙酰丙嗪后马步态的局部稳定性保持不变。
