Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Córdoba, Córdoba, Spain.
Equine Sport Medicine Center CEMEDE, School of Veterinary Medicine, University of Córdoba, Córdoba, Spain.
BMC Vet Res. 2024 May 22;20(1):217. doi: 10.1186/s12917-024-04039-2.
It has been reported that capacitive resistive electric transfer (CRET) increases blood circulation, hemoglobin oxygenation and temperature in muscles. The attributed benefits of these changes have been linked to improved athletic performance, enhanced muscle flexibility and fastening recovery from exercise-induced fatigue. For all of this, the present research aims to investigate whether the application of CRET 24 h before exercise affects the accelerometric pattern in horses during exercise. Six sound Standardbred trotters were subjected to a CRET session of 40 min of duration, applied on both sides of the neck, back and croup, 24 h before a training session. Training sessions consisted of a warming-up (WU) for 6400 m and a training bout (TB) at their maximal training speed for 1600 m. The same protocol was followed for the device off (sham protocol), also applied 24 h before the training session. CRET and sham experiments were separated by one week, the order of application of both was randomly defined for each individual and drivers were blinded for the duration of the experiment. During the training sessions, horses wore an accelerometer fixed at the sternal level. Speed, stride frequency (SF), length (SL), regularity and symmetry and accelerometric activities were measured during WU and TB.
CRET increased speed, mediolateral and total accelerometric activities during WU and speed, SL, dorsoventral, longitudinal and total accelerometric activities during TB, but stride regularity and symmetry decreased.
The application of CRET 24 h before exercise increased speed and accelerometric activities, results that highlight the need to evaluate the interaction between CRET and training in order to develop new methods to limit fatigue. However, the decrease in stride regularity and symmetry after CRET application could be negative effects, which could be attributed to the increased speed.
已有报道称电容电阻电传递（CRET）可增加肌肉的血液循环、血红蛋白氧合作用和温度。这些变化带来的益处与提高运动表现、增强肌肉灵活性以及加快运动引起的疲劳恢复有关。基于此，本研究旨在探讨在运动前 24 小时应用 CRET 是否会影响运动过程中马的加速计模式。6 匹健康的标准纯血马在颈部、背部和臀部两侧接受了 40 分钟的 CRET 治疗，在训练前 24 小时进行。训练课程包括 6400 米的热身（WU）和 1600 米的最大训练速度训练回合（TB）。对于设备关闭（假对照）也遵循相同的方案，也在训练前 24 小时进行。CRET 和假对照实验之间相隔一周，对每个个体的应用顺序都是随机确定的，并且实验过程中驱动程序对实验内容是盲目的。在训练课程中，马佩戴了一个固定在胸骨水平的加速度计。在 WU 和 TB 期间测量速度、步频（SF）、步长（SL）、规律性和对称性以及加速计活动。
CRET 增加了 WU 期间的速度、左右侧和总加速计活动，以及 TB 期间的速度、SL、背腹侧、纵向和总加速计活动，但步幅规律性和对称性降低。
在运动前 24 小时应用 CRET 增加了速度和加速计活动，这一结果突出表明需要评估 CRET 和训练之间的相互作用，以开发新的方法来限制疲劳。然而，CRET 应用后步幅规律性和对称性下降可能是负面的，这可能归因于速度的增加。
