Ristolainen, L. http://orcid.org/0000-0002-3041-260X
Toivo, K.
Parkkari, J.
Kokko, S.
Alanko, L.
Heinonen, O. J.
Korpelainen, R.
Savonen, K.
Selänne, H.
Vasankari, T.
Kannas, L.
Villberg, J.
Kujala, U. M.
Funding for this research was provided by:
Finnish Ministry of Education and Culture (6/091/2011)
Article History
Received: 1 March 2018
Accepted: 11 January 2019
First Online: 19 January 2019
Ethics approval and consent to participate
: The Ethics Committee of Health Care District of Central Finland was received (record number 23 U/2012). All sports clubs participated free-willingly to the study. This was secured by requesting clubs permission at the beginning of study and by written informed consent from the participating youth for the questionnaire. Written consent on behalf of participants below the age of 16 was obtained from the parental/legal guardian. Thereafter, all respondents were notified that they had a right to refuse to participate and withdraw from the study at any time.
: Not applicable.
: The authors declare that they have no competing interests.
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