A gymnastic machine having a frame defining a support area for the back of a user and a platform for the support of the feet, where the support area and the platform are inclined on opposite sides with respect to the vertical and are mutually convergent downwards. A work unit is associated with the frame and has a loading unit for the execution of a gymnastic exercise and movement means for moving the loading unit. The work unit has a bearing element associated with the frame and the movement means has a grip element which can be gripped by the user, the shift of the grip element causing the loading unit to shift. The movement means has at least a pulley placed between the grip element and the loading unit and connected in a kinematic manner to the latter by means of at least a flexible element.