Text and Data Mining valid from 2019-05-06
Received: 30 October 2018
Accepted: 1 February 2019
First Online: 6 May 2019
Compliance with ethical standards
: The authors declare they have no conflict of interest.
: The study procedure, consent form, and measures were confirmed by the Ethic Committee of the University of Tehran (code number = IR.UT.SPORT.REC.1396020). The authors declarate that this manuscript and research has been developed based on the Helsinki statement of ethical principles.
: Written informed consent was obtained from all individual participants included in the study.