US Patent 10022579 Shuttle training and therapy apparatus

A shuttle training and therapy device including in one example: a floor standing fame having a headward end and a footward end; a carriage slidably attached to the frame; a resistance system of elastic cords attached to the footward end of the frame; the elastic cords selectively attached to the carriage; and a range of motion limiting system including a control cord having a first end attached to the carriage, a second end selectively attached to the frame, and an intermediate portion attached to an elastic member attached to the carriage.