In this type of condition program, the horse is given multiple workout sessions on the same day separated by short resting periods. Some trainers use this method as a high-speed training program but some limited research has shown that it may lead to altering muscle fiber types. It is believed that this training should never be performed for more than 95 percent may lead to over training.
There are other condition programs as well like skills training where horses are trained for pole bending and fox hunting events. Some facilities also provide hybrid programs to condition your horse. All comes down to the type of event you want your horse to be trained for and the conditioning program is structured accordingly.