Abstract: An auxiliary drive for a training device, comprising a first force measuring device, a control device, and a drive unit, wherein the control device determines a target force FS,max, the first force measuring device determines an actual force FS which is applied to a main traction means and which is caused by an acceleration of a movable mass connected to the main traction means. The first force measuring device also transmits the determined actual force FS to the control device, and the control device also compares the actual force FS with the target force FS,max and controls the drive unit such that, if the actual force FS exceeds the target force FS,max, an auxiliary force FZ having a component that offers resistance to a gravitational acceleration acts on the movable mass by connection of the drive unit to the movable mass.

Abstract: A spiroergometry apparatus for detecting parameters of a respiratory gas. The spiroergometry apparatus has a main body, a measuring device, a computing unit and an energy store. The measuring device includes a sensor, which is provided on the main body, whereby it becomes possible to detect parameters directly in the respiratory gas flow, so that an in-situ detection of the parameters of the respiratory gas is made possible.

Abstract: An actuating device for a robot driver that reduces the effort involved for setting or learning of the actuating means. In addition, the effort for determining the pedal force can be reduced. The actuating device comprises at least one actuating means, which has at least one control rod comprising an actuator region and a contact element, wherein the contact element can be caused to connect to a pedal and the control rod in the actuator region is a rotationally symmetrical component which is slidably received in an actuator housing in the actuator region. In the actuator region the control rod contains a first element, and the actuator housing has a second element which is provided in an outer circumferential region of the first element, wherein the first element and the second element form an electromagnet force-generating means for moving the control rod.