They are also equipped with a magnetic device that improves cell function, increasing the performance and dynamic balance of the horse.The permanent magnet used is made of a highly magnetic alloy of neodymium, iron and boron with a nickel coating, capable of exerting a magnetic flux density of 2600 Gauss. It has been found in various tests with the help of veterinarians and professional runners, that the use of this device placed near the muscle-tendon Significantly decreases limb fatigue as it induces an increase in vascular blood flow and lymphatic circulation, with multiple beneficial effects. Recorded data confirms an average 4.7% increase in muscle power. Other results induced by the increased vascular blood flow and magnetic polarization, not quantifiable but verifiable in both horses and humans, are anti-infl Ammatory and analgesics, as well as the acceleration of the process of absorption of lactic acid from the muscle. The results in the arena confirm: - Average increase of 2.6 cm in maximum height of the jump; - Strengthen the movements of the joints resulting in the improvement of the horse's dynamic balance; - Average decrease of 6.7% in contact with obstacles.