• Ho Leo S T LST aDepartment of Physiotherapy, Queen Elizabeth Hospital bAccident and Emergency Medicine Academic Unit, Chinese University of Hong Kong, Prince of Wales Hos, Jones Alice Y M AYM, and Timothy H Rainer.
• aDepartment of Physiotherapy, Queen Elizabeth Hospital bAccident and Emergency Medicine Academic Unit, Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong cDiscipline of Physiotherapy, School of Allied Health Sciences, Griffith University, Gold Coast, Queensland, Australia.
• Eur J Emerg Med. 2017 Aug 1; 24 (4): 268-271.

ObjectivesThe aims of this study were to assess the influence of sex and body position on external chest compression (ECC) to a manikin by Chinese nurses and to determine the relationship between rescuer's predicted VO2max and ECC depth.Participants And MethodsA total of 40 nurses performed ECC on a manikin for 5 min in the standing (S) and bed-mount kneeling (K) position, then completed a Chester step-test, in 3 separate days. The rate and depth of compressions and oxygen consumption during ECC were measured.ResultsMean compression rate recorded was above 100/min in both positions throughout ECC. Mean compression depth for male participants was more than 38 mm for 5 min in the K-position but only 3 min in the S-position. Female participants achieved this compression depth for less than 90 s in the K-position but not at all in the S-position.ConclusionIrrespective of sex, the K-position appears to facilitate effective ECC. The relationship between aerobic fitness of female nurses and their ability to perform effective cardiopulmonary resuscitation warrants further investigation.

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