Funding for this research was provided by:
University of Stirling (N/A)
University of Edinburgh (N/A)
Text and Data Mining valid from 2018-05-10
Received: 30 October 2017
Accepted: 4 April 2018
First Online: 10 May 2018
Ethics approval and consent to participate
: Ethical approval was obtained from the University of Stirling, School of Sport Research Ethics Committee (reference number 760). Approval was also obtained from the Director of Children, Young People and Education at Stirling Council. This study was performed in accordance with the Declaration of Helsinki.
: The authors declare that they have no competing interests.
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