Elvira, Juan C.Lucía Mulas, AlejandroLas Heras Vázquez, Francisco JavierPérez Ruiz, MargaritaÁlvarez, Antonio J.Carvajal, AlfredoLópez-Ochoa, AntonioChicharro, José L.2017-02-172017-02-171998Elvira, J. C., Lucı́a, A., De Las Heras, J. F., Pérez, M., Alvarez, A. J., Carvajal, A. y Chicharro, J. L. (1998). Active compression–decompression cardiopulmonary resuscitation in standing position over the patient (ACD-S), kneeling beside the patient (ACD-B), and standard CPR: comparison of physiological and efficacy parameters. Resuscitation, 37(3), 153-160.03009572http://hdl.handle.net/11268/6212The purpose of this investigation was to compare the efficacy of three different cardiopulmonary resuscitation techniques: (a) standard cardiopulmonary resuscitation (CPR), (b) active compression-decompression cardiopulmonary resuscitation (ACD-CPR) with the rescuer standing beside the patient (ACD-B), and (c) ACD-CPR with the rescuer in a standing position over the patient (ACD-S). The physiological responses of the rescuers when performing these techniques were also evaluated. A total of 14 experienced professional rescuers of a mobile intensive care unit (32 ± 6 years), participated in this investigation. On 3 different days (randomised order), each of them performed on a manikin (a) CPR, (b) ACD-B, and (c) ACD-S. Parameters indicative of both CPR performance (time to exhaustion, compression depth and efficacy), and rescuers' physiological responses (blood lactate; minute ventilation (VE); heart rate (HR); oxygen uptake V(O2); respiratory exchange rate (RER); and percentage of V(O2max) were monitored during the trials. The main findings of this investigation were: (a) the evidence of a greater physiological load for the rescuers during the ACD-CPR techniques compared to CPR, which caused a longer performance time with CPR as compared to ACD-CPR; (b) the overall absence of physiological differences between ACD-B and ACD-S; and (c) a modest decrease in mechanical efficacy for ACD-S when compared to ACD-B.engjournal article10.1016/S0300-9572(98)00053-7restricted accessReanimación cardiopulmonarAparato respiratorioSistema cardiovascularAparato respiratorio