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Heart rate as a marker of stress in ambulance personnel: A pilot study of the body's response to the ambulance alarm
Borås University, School of Health Sciences, Knowledge Centre for Prehospital Care, Borås, Sweden .
Borås University, School of Health Sciences, Knowledge Centre for Prehospital Care, Borås, Sweden.
Swedish Armed Forces, Centre for Defence Medicine, Västra Frölunda, Sweden.
2011 (English)In: Prehospital and Disaster Medicine, ISSN 1049-023X, E-ISSN 1945-1938, Vol. 26, no 1, 21-26 p.Article in journal (Refereed) Published
Abstract [en]

Introduction: Studies have demonstrated the presence of stress and post-traumatic stress among ambulance personnel, but no previous research has focused on the body's reaction in the form of the change in heart rate of ambulance staff in association with specific occupational stress.

Hypothesis: The purpose of this study is to investigate whether work as an ambulance professional generates prolonged physiological arousal that can be measured by heart rate in different situations.

Methods: Twenty participants carried a pulse-meter in the form of a wristwatch, which continuously measured and stored their heart rate 24 hours per day for a period of seven days. All ambulance alarms that occurred during the test period were recorded in journals, and the participants completed diaries and a questionnaire describing their experiences. The alarms were divided into different phases. Correlations between heart rate in the different phases were computed.

Results: Analysis of study data indicated a significant rise of heart rate unrelated to physical effort during an emergency alarm and response. This increased heart rate was noticed throughout the mission and it was not related to the length of experience the staff had in the ambulance profession. In addition, a non-significant trend suggested that alarms involving acutely ill children lead to an even higher increase in heart rate. In addition, this research showed that constant tension existed during sleep, while available for an emergency, indicated by a noticeable increase in heart rate during sleep at work compared to sleeping at home.

Conclusions: A rise in heart rate was experienced during all acute emergency missions, regardless of a subject's experience, education, and gender. Missions by themselves generated a rate increase that did not seem to correlate with physical effort required during an emergency response. This study shows that working on an ambulance that responds to medical emergencies is associated with a prolonged physiological arousal.

Place, publisher, year, edition, pages
2011. Vol. 26, no 1, 21-26 p.
Keyword [en]
alarm, ambulance, heart rate, prehospital, sleep, stress, adult, arousal, article, female, human, male, mental stress, middle aged, pathophysiology, physiology, pilot study, rescue personnel, Ambulances, Emergency Medical Technicians, Humans, Pilot Projects, Stress, Psychological
National Category
Environmental Health and Occupational Health Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:hj:diva-34669DOI: 10.1017/S1049023X10000129PubMedID: 21838062Scopus ID: 2-s2.0-80052355916OAI: oai:DiVA.org:hj-34669DiVA: diva2:1063866
Available from: 2017-01-11 Created: 2017-01-11 Last updated: 2017-11-29Bibliographically approved

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Karlsson, Kåre

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