More particularly, the present invention relates to a disk therapy apparatus, and more particularly, to a disk therapy apparatus capable of freely selecting a radius of the lower half body motion part with the back and pelvic cavity motion, The lower part of the lower body motion part is provided with a weight for lifting the lower part motion part by a heavy object, and the weight of the lower part body weight To a technique capable of varying according to the weight of the user.The configuration is as followsThe connection between the lower end of the connecting member 15 and the front side of the actuating member 14 is engaged with the hinge portion 28 so that the upper end of the connecting member 15 flows forward or backward in the longitudinal direction of the exercise device,The connection between the upper end of the connecting member 15 and the lower surface of the lower body support 5 is such that when the front of the lower body support 5 is twisted in the width direction A or ascended or descended, the hinges 29, Connected to the forward and rearward moving joint device (31)The bending member 22, which rotates the operation space 14 and directs the front of the lower body support 5 in all directions, is provided with a pivoting member 17 connected to the power of the first reduction motor,A fixing part 18 fixed to the pivoting member 17 and rotating according to the rotation of the pivoting member 17The bearing housing 20 is hinged to one side of the fixing portion 18 and hinged to the forward portion of the flow member 19 so that the bearing housing 20 is fitted in the front of the flow member 19 with the operating passage 14 facing forward. One end of the bent piece 21 is connected by a hinge,The rear portion of the operation space 14 is connected to a universal joint 200 located between the fixed portion 18 of the bending member 17 and the bending piece 21,The connection between the rear of the lower body support 5 and the front of the frame 3 is conn
