Institute of Veterinary Anatomy, Faculty of Veterinary Medicine, Leipzig University, Leipzig, Germany.
Werkman Equilytics, Groningen, The Netherlands.
Vet Rec. 2021 Aug;189(4):e450. doi: 10.1002/vetr.450. Epub 2021 May 16.
Aim of the current in vivo, observational study was to investigate the effect of trimming, heel elevation and different types of shoeing on breakover duration (BreakD) with a novel, hoof-mounted inertial measurement unit (IMU) sensor system.
Ten sound, crossbred horses were examined barefoot before and after trimming fitted with an IMU sensor at the dorsal hoof wall. Additionally, application of 5° heel wedges, plain steel shoes, rolled-toe shoes and palmarly-placed quarter-clip shoes was tested. Horses were guided in a straight line on firm ground. Obtained data were speed corrected prior to calculations testing the influence of different manipulations for their significance on BreakD.
Trimming had no significant influence on BreakD. Heel elevation caused a significant decrease of BreakD in walk and trot. Shoeing with a plain steel shoe resulted in a significant increase in BreakD in walk. This could be rescinded by creating a rolled toe or placing the shoe palmarly.
Obtained results emphasize the use of heel wedges or rolled-toe and palmarly-placed shoes to ease breakover in the context of therapeutic shoeing. Hoof-mounted IMU sensors with high resolution seem to be a practical and valuable approach to accurately examine BreakD and factors influencing this parameter.
本体内观察研究的目的是通过新型马蹄安装惯性测量单元（IMU）传感器系统，研究修蹄、后跟抬高和不同类型蹄铁对离地时间（BreakD）的影响。
10 匹健康的杂交马在赤脚状态下进行检查，然后在蹄壁的背侧安装 IMU 传感器。此外，还测试了 5°后跟楔形物、普通钢蹄铁、卷蹄铁和掌部 quarter-clip 蹄铁的应用。马在坚硬的地面上被引导直线行走。在计算不同操作对 BreakD 的影响的显著性之前，对获得的数据进行了速度校正。
修蹄对 BreakD 没有显著影响。后跟抬高导致步行和小跑时 BreakD 显著降低。普通钢蹄铁的蹄铁导致步行时 BreakD 显著增加。通过制作卷蹄或掌部蹄铁，可以减轻这种影响。
研究结果强调在治疗性蹄铁中使用后跟楔形物或卷蹄和掌部蹄铁来缓解离地过程。具有高分辨率的马蹄安装 IMU 传感器似乎是一种实用且有价值的方法，可以准确地检查 BreakD 和影响该参数的因素。
