Abstract: Apparatus for massaging the legs of a horse, while also providing controllable air cushion support, includes a boot for encasing at least one foot of a horse, the boot including a flexible tube extending therethrough for permitting circulation of a fluid through the boot, the flexible tube including an inlet and an outlet; a supply of water; an inlet conduit which supplies the water from the supply to the inlet of the flexible tube; an outlet conduit which conveys the water from the outlet of the flexible tube back to the supply; a water pump which pumps the water from the supply to the inlet conduit to control the temperature of each foot of the horse; an air pump which simultaneously pumps air from an air conduit to the inlet conduit in mixing relation with the water to such an extent that the air provides a massaging action to each foot of the horse; an air bladder which provides regulated support for the sole of the hoof of each foot in order to aid in healing of the foot during laminitis, the air bladder