This longitudinal descriptive study, carried out on soccer players and coaches during the year 2021. In accordance with Law 14/2007, of July 3, on biomedical research, all the data derived from this study have been treated separately from the identity of the group studied, as stated in the Declaration of Helsinki on research with human beings (2013), Regulation (EU) 2016/679 of the European Parliament and of the Council of April 27, 2016, on natural persons in what regarding the processing of personal data and their free circulation, and Organic Law 3/2018, of December 5, on the Protection of Personal Data and guarantee of digital rights. The study was approved by the Ethics Committee for Biomedical Research of the CEU Cardenal Herrera University (CEEI22/286), prior approval by the medical teams of the football clubs. of the first division of the Santander League in the Valencian Community: Villarreal Club de Fútbol, Elche Club de Fútbol and Levante Unión Deportiva to participate in it. All participants gave their written consent after being informed.
After the bibliographic search of the questionnaires existing up to now to assess both the attitude of helping others and the knowledge of CPR in lay and healthcare first responders, a questionnaire was configured based on the questionnaires found due to their suitability.
After answering the questionnaire, a 2-hour training workshop was held where a theoretical explanation was given to recognize a cardiorespiratory arrest, the correct technique of chest compressions, ventilations and DESA management, in addition a practical class was carried out with CPR training models ( Manikin for CPR practices Little Anne QCPR. Laerdal) and AED simulation for CPR training (AED Practi-Trainer - Bilingual. WNL). Both theoretical and practical training were given by a basic life support instructor from the Spanish Society of Intensive Medicine and Coronary Units (SEMICYUC), the participants were instructed under the guidelines of the 2021 CKD recommendations.
One month after the training workshop, the questionnaire was passed electronically again, through a link, to obtain the post-training results.
The Shapiro-Wilk test was used to verify the normality of the variables. In case of breaking the normality condition (p\<0.05) non-parametric tests were used. The calculation of each questionnaire was carried out awarding one point if the answer was correct and zero points if it was not.