Elbow supporting structure of prostrate leg bending trainer

The utility model relates to an elbow supporting structure of a prostrate leg bending trainer, which belongs to the technical field of training instruments and comprises a supporting frame and an elbow supporting component, the elbow supporting component comprises a guide unit, a sliding unit, a locking bolt, an elbow supporting base plate and a handle, the guide unit is fixedly connected to one end of the supporting frame, and the sliding unit is fixedly connected to the other end of the supporting frame. The sliding unit is connected to the guide unit in a sliding mode, the locking bolt, the elbow supporting base plate and the handle are all arranged on the sliding unit, when the prostrate leg bending trainer is used, an exerciser can adjust the position of the elbow supporting base plate according to the situation of the exerciser, the locking bolt is loosened, the elbow supporting base plate is adjusted to the proper position, and the exerciser can exercise the prostrate leg bending trainer. After adjustm