Funding for this research was provided by:
AFA Försäkring (130275)
Text and Data Mining valid from 2019-02-20
Received: 29 August 2018
Accepted: 13 February 2019
First Online: 20 February 2019
: Maria Fernström: Åstrand Laboratory of Work Physiology, The Swedish school of sport and health science, GIH, Lidingövägen, 1, 114 86 Stockholm, Sweden. ExternalRef removedUlrika Fernberg: School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 701 82 Örebro, Sweden. ExternalRef removedAnita Hurtig-Wennlöf: School of Health Sciences, Faculty of Medicine and Health, Örebro University, 701 82 Örebro, Sweden. ExternalRef removed
: The ethics committee of Uppsala approved the study design, Dnr: 2014/224. All subjects gave their written consent to participate and were informed that they could terminate their participation at any time.
: Not applicable.
: The authors declare that they have no competing interests.
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