Managing Event Horses In The Heat At Shows – written by Karen Nyrop Horses are superior athletes when compared to humans. Horses can sweat twice as much, can loose twice the amount of body water before fatigue, and have twice the metabolic capacity for work. -the increased sweating is enabled by the large reservoir of fluid and electrolytes in the gastrointestinal tract. In high intensity work, the fluids in the gut can be used by the horse to augment blood volume. -the increased work capacity is due to the huge muscle mass of horses when compared to man. -however, the horse has a 50% lower body to skin surface area…