title: [AN INSTRUMENT FOR REGISTRATION OF HEART FREQUENCY AT THE WORKING PLACE AND DURING SPORT ACTIVITY].
mesh_terms: D002309:Cardiology; D004562:Electrocardiography; D004864:Equipment and Supplies; D006321:Heart; D006339:Heart Rate; D006801:Humans; D011674:Pulse; D013177:Sports; D013178:Sports Medicine; D013686:Telemetry
keywords: CARDIOLOGY; ELECTROCARDIOGRAPHY; EQUIPMENT AND SUPPLIES; PULSE; SPORT MEDICINE; TELEMETRY
vernacular_title: GERAET ZUR REGISTRIERUNG DER HERZFREQUENZ AM ARBEITSPLATZ UND WAEHREND SPORTLICHER BETAETIGUNG.