bar 28 the horizontal bar component 27 consists of a rigid rectangular frame including two vertical columns 29 each of which is provided with a vertical guiding slot 30 one end of a horizontally extending slide bar 31 is received in each of the slots 30 the slide bar 31 is constructed as a weight carrier corresponding associated weights which may be exchangeably mounted as desired in the slide bar 31 are indicated by the reference numeral 32 in the kind of use of the power training arrangement of the present invention which is illustrated in fig2 of the drawing one end of a tow cable 33 is connected to a weight 32 supported on the slide 31 the tow cable 33 is trained about a diverting roller or pulley 34 which is turnably mounted on a transverse horizontal upper bar of the horizontal bar component 27 and about a guiding roller or pulley 35 which is turnably mounted on the housing 10 of the power training arrangement and extends all the way toward and is connected to a holder 36 which is removably mounted on the first moving element 18 when the first moving element 18 is pivoted by the turning of the first output shaft 13 the slide 31 is lifted or lowered in the horizontal bar component 27 depending on the sense and extent of turning of the first output shaft 13 the point of attachment of the tow cable 33 to the moving element 18 via the holder 36 is chosen in such a manner that the slide 31 performs a complete lifting or lowering movement on the horizontal bar component 27 during the.