A training device is proposed which has actuating elements which can be moved continuously in rotation and are connected to one another and are intended for a pair of limbs of a person, drive means for driving the actuating elements, and an electronics unit for regulating and/or controlling the movement of the actuating elements, with means being provided for visual, acoustic, touch-based or smell-based notification or display of a training parameter objective and of an actual value which can be compared with it, or of a training parameter target deviation in relation to an actual value, and the training parameter target being the speed of rotation, the torque or the actuating element position, or a variable derived therefrom. Moreover, a side-related and an angle-related training parameter objective with corresponding notification or display is proposed. In addition, part of the invention is a training device which, in isokinetic training, changes a desired speed of rotation as a function of cardiovascular variables or the driving torque applied to the actuating elements by the person doing the training.