The training/medical electromyostimulating device according to the present invention is realized in the form of a garment to be worn by a person (PE) it comprises at least one electrical myostimulation signals generating device (EMS-LF-1, EMS-LF-2) adapted to generate electrical myostimulation signals at low pulse frequency the or each device (EMS-LF-1, EMS-LF-2) is placed in the garment during normal use by the person (PE).