Abstract: The rehabilitation therapy apparatus of the present invention includes a support bar cantilevered generally horizontally outwardly from a vehicle which is operable in a forward direction, the support bar being adjustably mounted for selective vertical adjustment on the vehicle. A frame with a horizontal arm is connected to the roof of the vehicle, while a vertical leg depends from the arm, upon which the support bar is adjustably connected. A tube mounted on the roof of the vehicle receives the frame arm on either end, to permit use of the arm on either side of the vehicle. The rehabilitation therapy includes the initial step of loosely strapping a patient's nonambulatory leg to the leg of a trainer such that movement of the trainer's leg will appropriately move the patient's leg. The therapy apparatus of the invention is then positioned with the support bar forwardly of the patient and trainer so that the patient and trainer may grip the bar for support.