The time a horse and rider physically arrive at a vet check. A storage pack attached to the cantle of the saddle. Failure of the pulse to recover to or below the original value is an indication of potential problems. An endurance horse on a hot day can lose over 50 pounds of water. Necessary electrolytes are lost, too.
Excessive dehydration can be life-threatening.
Commonly these are Calcium, Sodium, Potassium, Magnesium, and Chloride. A ride which allows riders starting one distance to change to a longer distance ride upon completion of the shorter. A ride of 5O or more miles length, held over a specified course under strict veterinary control, with no minimum time limit. A storage pack carried around the rider's waist. A type of vet check where the hold time does not start until the horse reecovers to the set pulse criteria.