Evaluation of the stance phases of warmblood sport horses on soft and hard surfaces by infrared optical sensors

The aim of the study was to assertain the differences in walking time of sport horses by investigating their stance phases on soft versus hard surfaces using infrared sensors. A total of 15 warmblood sport horses were used in the study. Three different stages of the stance phase were examined, including initial contact, foot flat and propulsion, alongside assessment of walking pace and step-length. It was observed that the horses were inclined to walk more slowly on soft surfaces compared to hard ground. The amount of time spent in the foot flat position constituted the majority of the stance phase on both surfaces. Propulsion length during the stance phase was shorter on soft surfaces in comparison to hard ground. While the ratio of contact length in forelimbs was lower on hard ground compared to soft surfaces, in hind limbs this ratio was higher on hard ground. Objective data obtained through gait analysis systems are thought to serve as a potential auxiliary diagnostic tool in diseases associated with the locomotor system manifested by lameness, particularly in equine veterinary medicine. In the future, the relevant systems that could offer rapid results through current technology are anticipated to provide accurate preliminary assumptions to evaluate the potential of horses regarding their walking, trotting, and leaping capacity before competitions through such studies