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Using shoulder straps decreases heart rate variability and salivary cortisol concentration in Swedish ambulance personnel
Jönköping University, School of Health and Welfare, HHJ. ADULT. Ambulance Service, Skaraborg Hospital, Skövde, Sweden.
Ambulance Service, Skaraborg Hospital, Skövde, Sweden.
School of Health Sciences, Borås University, Borås, Sweden.
Department of Paediatrics, Skaraborg Hospital, Skövde, Sweden.
2016 (English)In: SH@W Safety and Health at Work, ISSN 2093-7911, E-ISSN 2093-7997, Vol. 7, no 1, 32-37 p.Article in journal (Refereed) Published
Abstract [en]

Background: Previous research has shown that paramedics are exposed to risks in the form of injuries to the musculoskeletal system. In addition, there are studies showing that they are also at increased risk of cardiovascular disease, cancer, and psychiatric diseases, which can partly be explained by their constant exposure to stress. The aim of this study is to evaluate whether the use of shoulder straps decreases physical effort in the form of decreased heart rate and cortisol concentration.

Methods: A stretcher with a dummy was carried by 20 participants for 400 m on two occasions, one with and one without the shoulder straps. Heart rate was monitored continuously and cortisol samples were taken at intervals of 0 minutes, 15 minutes, 30 minutes, 45 minutes, and 60 minutes. Each participant was her or his own control.

Results: A significant decrease in heart rate and cortisol concentration was seen when shoulder straps were used. The median values for men (with shoulder straps) at 0 minutes was 78 bpm/21.1 nmol/L (heart rate/cortisol concentration), at 15 minutes was 85 bpm/16.9 nmol/L, and at 60 minutes was 76 bpm/15.7 nmol/L; for men without shoulder straps, these values were 78 bpm/21.9 nmol/L, 93 bpm/21.9 nmol/L, and 73 bpm/20.5 nmol/L. For women, the values were 85 bpm/23.3 nmol/L, 92 bpm/20.8 nmol/L, and 70 bpm/18.4 nmol/L and 84 bpm/32.4 nmol/L, 100 bpm/32.5 nmol/L, and 75 bpm/25.2 nmol/L, respectively.

Conclusion: The use of shoulder straps decreases measurable physical stress and should therefore be implemented when heavy equipment or a stretcher needs to be carried. An easy way to ensure that staff use these or similar lifting AIDS is to provide them with personalized, well-adapted shoulder straps. Another better option would be to routinely sewn these straps into the staff's personal alarm jackets so they are always in place and ready to be used.

Place, publisher, year, edition, pages
Occupational Safety and Health Research Institute , 2016. Vol. 7, no 1, 32-37 p.
Keyword [en]
ambulance personnel, heart rate, saliva cortisol, shoulder straps, stretcher
National Category
Environmental Health and Occupational Health Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:hj:diva-34668DOI: 10.1016/j.shaw.2015.09.005PubMedID: 27014488Scopus ID: 2-s2.0-84960895582OAI: oai:DiVA.org:hj-34668DiVA: diva2:1063859
Available from: 2017-01-11 Created: 2017-01-11 Last updated: 2017-02-09Bibliographically approved

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