Complex sentence: The patient, often multiple disabled, is positioned on a cloth over the back of the horses; the patient will feel all movements and warmth of the horses; this improves (amongst others) blood circulation and health in general.
Split into simpler sentences: The patient, often multiple disabled, is positioned on a cloth over the back of the horses. He or she will feel the movement and warmth of the horses, which is supposed to improve (among other things) blood circulation and health in general.