Funding for this research was provided by:
Wellcome Trust (095582/Z/11/Z)
Received: 31 October 2017
Accepted: 14 March 2018
First Online: 27 March 2018
Ethics approval and consent to participate
: The Global Observatory for Physical Activity - GoPA! project is approved by the Research Ethics Committee of the Faculty of Physical Education (n° 522.064) at the Federal University of Pelotas, Brazil. CAAE n° 67102116.0.0000.5313.
: Not applicable.
: The authors declare that they have no competing interests.
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