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Sex differences in the effort indicators during cardiopulmonary resuscitation manoeuvres on manikins

López-González, Ángela; Sánchez-López, Mairenab,c; Rovira-Gil, Elíasa; González-García, Albertob; Ferrer-López, Vicented; Martínez-Vizcaíno, Vicenteb

European Journal of Emergency Medicine: February 2015 - Volume 22 - Issue 1 - p 62–65
doi: 10.1097/MEJ.0000000000000178

The aims of this study were to examine sex differences in college students while they performed cardiopulmonary resuscitation (CPR) on a manikin for 20 min in (a) objective and subjective effort indicators and (b) to analyse the influence of potential confounders (age, BMI and cardiorespiratory fitness) on these sex differences. Sixty-three participants were recruited. Participants performed 20 min of CPR on a manikin. During the CPR trial, percentages of maximal heart rate levels were higher in women than in men (P<0.05) and perceived exertion increased significantly in both sexes over time (P=0.05); furthermore, at the last two time points analysed, women scored higher than men (P<0.05). However, these sex differences disappeared when controlling for age, BMI and cardiorespiratory fitness. In conclusion, indicators of exertion during CPR are higher in women than in men, but these sex differences are because of BMI and differences in physical fitness conditions.

aSchool of Nursing, University of Castilla La-Mancha, Albacete

bSocial and Health Care Research Center, University of Castilla La-Mancha, Cuenca

cSchool of Education, University of Castilla-La Mancha, Ciudad Real

dDepartment of Physiotherapy, School of Medicine, University of Murcia, Spain

Correspondence to Ángel López-González, MSc, Nursing Faculty, University of Castilla-La Mancha, Albacete, Spain Tel: +34 967 599200; fax: +34 967 599202; e-mail:

Received February 1, 2014

Accepted June 23, 2014

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