A micro oscillating element is formed integrally from a material substrate made up of a first conductive layer, a second conductive layer and an insulating layer disposed between the first conductive layer and the second conductive layer. It is of particular use for measuring perceived transmission performance of the communication channel. The data also is analyzed to identify predicted connections. The weights of each column of a group of columns of the parity portion are the same. The valve body and the magnet coil are accommodated in two compartments of a housing, and the at least one permanent magnet is held in a receptacle on a wall of the housing in a fashion facing a middle position of the valve element situated between the two end positions. The footboards are driven by two feet of an exerciser to actuate the two swivel devices such that two support arms of the swivel devices actuate the two recovery transmission devices, thereby causing two transmission elements of the recovery transmission devices to act on the damping device via the connection transmission device.