Influence of competition on performance factors in under-19 soccer players at national league level

• José María Izquierdo,

  Roles Conceptualization, Investigation, Supervision

  Affiliation Department of Physical Activity and Sport Sciences, University of León, León, Spain

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• Ana María De Benito,

  Roles Investigation, Validation, Writing – original draft

  Affiliation Faculty of Physical Activity and Sport Sciences, Catholic University of Valencia San Vicente Mártir, Valencia, Spain

  http://orcid.org/0000-0002-8836-4073

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• Gorka Araiz,

  Roles Investigation

  Affiliation Department of Physical Activity and Sport Sciences, University of León, León, Spain

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• Guillermo Guevara,

  Roles Investigation

  Affiliation Department of Physical Activity and Sport Sciences, University of León, León, Spain

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• Juan Carlos Redondo

  Roles Conceptualization, Methodology, Writing – original draft, Writing – review & editing

  * E-mail: jc.castan@unileon.es

  Affiliation Department of Physical Activity and Sport Sciences, University of León, León, Spain

  http://orcid.org/0000-0002-0050-9638

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