Saitua Aritz, Becero Mireya, Argüelles David, Castejón-Riber Cristina, Sánchez de Medina Antonia, Satué Katy, Muñoz Ana
Equine Sport Medicine Center, School of Veterinary Medicine, University of Córdoba, 14014 Córdoba, Spain.
Department of Animal Medicine and Surgery, School of Veterinary Medicine, University of Córdoba, 14014 Córdoba, Spain.
Animals (Basel). 2020 Feb 3;10(2):236. doi: 10.3390/ani10020236.
Horse trainers often claim that exercise on a water treadmill (WT) leads to a greater muscle power and development compared to terrestrial locomotion, because of the greater viscosity of water compared to air. This research assesses locomotor changes measured with accelerometers fixed in the pectoral region and in the sacrum midline in six horses subjected to exercise sessions of 40 min duration on a WT without water (DT), and with water at the depth of fetlock (FET) and carpus (CAR) with velocities of 6 km/h and at the depth of stifle (STF) at 5 km/h. Another five horses performed the same exercise sessions but always with a velocity of 5 km/h. Total power increased from DT to FET and CAR, without significant differences between CAR and STF depths when the velocity was the same. However, a significant decrease was found when the velocity was reduced. The greater total power with water was distributed mainly to the dorsoventral axis, with significant increases in dorsoventral displacement and dorsoventral power. Both parameters were significantly affected by velocity and water depth. In conclusion, total and dorsoventral powers increased with velocity and water depth, leading to reduction in longitudinal and mediolateral power, during exercise on a WT.
驯马师常称，与陆地运动相比，在水跑步机（WT）上运动能带来更强的肌肉力量和发育，原因是水的黏性比空气大。本研究评估了六匹马在无水（DT）的WT上以及在跗关节（FET）和腕关节（CAR）深度处有水、速度为6公里/小时，在膝关节（STF）深度处有水、速度为5公里/小时的情况下，进行40分钟运动时，通过固定在胸区和骶骨中线的加速度计测量的运动变化。另外五匹马进行相同的运动，但速度始终为5公里/小时。总功率从DT增加到FET和CAR，当速度相同时，CAR和STF深度之间无显著差异。然而，当速度降低时，发现有显著下降。有水时更大的总功率主要分布在背腹轴上，背腹位移和背腹功率显著增加。这两个参数均受速度和水深的显著影响。总之，在WT上运动时，总功率和背腹功率随速度和水深增加，导致纵向和内外侧功率降低。
