The invention relates to an ergometer, preferably a bicycle ergometer, comprising a pedal arrangement (2) which is mounted in a frame (1); and an adjustable braking device (5) which optionally acts on a disk flywheel (4). The invention is characterised in that the two pedals (7, 8) of the pedal arrangement (2) are mounted independently of each other, excluding the transmission of force from one pedal to another.