Associations between match participation, maturation, physical fitness, and hormonal levels in elite male soccer player u15: a prospective study with observational cohort

HIGHLIGHTS

• who: Ebrahim Eskandarifard from the of the studyIf any players who competed for a limited time during the match each week. Then we provided a friendly match or a small side game. This study was authorized by the Ethics Committee of the University of Isfahan (IR.UI.REC.1399.001). Also we have done it regarding the Helsinki declaration (2013). All the participants were informed about the risks and benefits of this study, have the right to quit in each part of that they want. Informed consent was obtained from the parents/ young players for the participation . . .
  

   

  

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