Pugliese Brenna R, Carballo Cristina T, Connolly Kevin M, Mazan Melissa R, Kirker-Head Carl A
Orthopaedic Research Laboratory, Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA.
Orthopaedic Research Laboratory, Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA.
J Equine Vet Sci. 2020 Mar;86:102849. doi: 10.1016/j.jevs.2019.102849. Epub 2019 Nov 22.
The objective was to validate a scientific method for characterizing equine metacarpophalangeal joint (MCPJ) motion in the nonfatigued and fatigued states using a single horse at trot, slow canter, and fast canter. One healthy Thoroughbred gelding exercised on a treadmill to exhaustion (fatigued state) (heart rate >190 BPM and blood lactate >10 mmol/L) while bilateral MCPJ angular data were acquired using electrogoniometry. Blood lactate and heart rate reflected transition from nonfatigued to fatigued states with increasing exercise duration and treadmill speed. Electrogoniometry consistently demonstrated: increase in mean MCPJ maximum extension angle with onset of fatigue; altered extension and flexion angular velocities with onset of fatigue; and increasing stride duration and decreasing stride frequency with onset of fatigue. The method allowed a preliminary but comprehensive characterization of the dynamic relationship between MCPJ kinematics and fatigue, prompting the need for multisubject studies that may enhance our ability to moderate exercise-related distal limb injury in equine athletes.
目的是验证一种科学方法，该方法用于在一匹马以小跑、慢步快跑和快步快跑状态下，对非疲劳和疲劳状态的马掌指关节（MCPJ）运动进行特征描述。一匹健康的纯种马在跑步机上运动至疲惫（疲劳状态）（心率>190次/分钟且血乳酸>10 mmol/L），同时使用电子测角仪获取双侧MCPJ角度数据。血乳酸和心率反映了随着运动持续时间和跑步机速度增加，从非疲劳状态到疲劳状态的转变。电子测角仪始终显示：随着疲劳的出现，MCPJ平均最大伸展角度增加；随着疲劳的出现，伸展和屈曲角速度改变；随着疲劳的出现，步幅持续时间增加且步频降低。该方法对MCPJ运动学与疲劳之间的动态关系进行了初步但全面的特征描述，促使需要开展多主体研究，这可能会增强我们调节马运动员与运动相关的远端肢体损伤的能力。
