Funding for this research was provided by:
Ministry of sports, youth, popular education and community life of France (Project n°12-R-10)
Text and Data Mining valid from 2018-05-05
Received: 24 October 2017
Accepted: 25 April 2018
First Online: 5 May 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: For this type of study formal consent is not required.