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Endocrine Responses to Various 1 × 1 Small-Sided Games in Youth Soccer Players

Author

Listed:
  • Paweł Chmura

    (Department of Team Games, University School of Physical Education, 51-612 Wrocław, Poland)

  • Tomasz Podgórski

    (Department of Physiology and Biochemistry, Poznań University of Physical Education, 61-871 Poznań, Poland)

  • Marek Konefał

    (Department of Biological and Motor Sport Bases, University School of Physical Education, 51-612 Wrocław, Poland)

  • Andrzej Rokita

    (Department of Team Games, University School of Physical Education, 51-612 Wrocław, Poland)

  • Jan Chmura

    (Department of Biological and Motor Sport Bases, University School of Physical Education, 51-612 Wrocław, Poland)

  • Marcin Andrzejewski

    (Department of Methodology of Recreation, Poznań University of Physical Education, 61-871 Poznań, Poland)

Abstract

The aim of this study was to determine relationships between repeated 1 × 1 small-sided games (SSGs) (variable duration, constant work-to-rest ratio) and the concentration of steroid hormones and characteristic fatigue markers in youth soccer players. Eighteen young male soccer players were assigned at random to two experimental groups: E1—undertaking a six 30 s one-on-one SSGs with a 2 min rest period; and E2—playing six 45 s SSGs with a 3 min rest interval. Capillary blood was collected from the players at rest, after the last game, and 15 and 30 min after the exercise protocol. The variables assessed included serum cortisol (C), free testosterone (FT) and total testosterone (TT). An effect was observed between the measurement times (TT (F = 15.26, p ≤ 0.0001), FT (F = 6.86, p = 0.0006)). In terms of cortisol (C) levels, no interactions or effect between the studied groups were revealed, but an interaction was found (F = 4.01, p = 0.0126) and the effect appeared between the measurement times (F = 11.16, p ≤ 0.0001). The study results show that in all likelihood, longer rest intervals in repeated 30 s 1 × 1 SSGs can reduce catabolic reactions and hence the risk of overtraining in youth soccer players.

Suggested Citation

  • Paweł Chmura & Tomasz Podgórski & Marek Konefał & Andrzej Rokita & Jan Chmura & Marcin Andrzejewski, 2019. "Endocrine Responses to Various 1 × 1 Small-Sided Games in Youth Soccer Players," IJERPH, MDPI, vol. 16(24), pages 1-9, December.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:24:p:4974-:d:295246
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