Funding for this research was provided by:
South-Eastern Norway Regional Health Authority
Municipalities of southern Norway
Spicheren Fitness Center, Trivsel Health and Fitness Center and Trend Trim Fitness Center
Text and Data Mining valid from 2018-05-03
Received: 4 July 2017
Accepted: 24 April 2018
First Online: 3 May 2018
Ethics approval and consent to participate
: The Regional Committee for Medical Research Ethics, South-East C, Norway (reference number 2009/429) approved the study, and written informed consent was obtained from all participants.
: The authors declare that they have no competing interests.
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