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Seasonal Changes in 25(OH)D Concentration in Young Soccer Players—Implication for Bone Resorption Markers and Physical Performance

Author

Listed:
  • Joanna Jastrzębska

    (Department of Pediatrics, Diabetology and Endocrinology, Gdansk Medical University, 80-210 Gdansk, Poland)

  • Maria Skalska

    (Department of Pediatrics, Diabetology and Endocrinology, Gdansk Medical University, 80-210 Gdansk, Poland)

  • Łukasz Radzimiński

    (Department of Health and Natural Sciences, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland)

  • Agnieszka Niewiadomska

    (Centralny Ośrodek Medycyny Sportowej, 81-538 Gdynia, Poland)

  • Artur Myśliwiec

    (Department of Health and Natural Sciences, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland)

  • Guillermo F. López-Sánchez

    (Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University-Cambridge Campus, Cambridge CB1 1PT, UK)

  • Michał Brzeziański

    (Department of Endocrine Disorders and Bone Metabolism, Medical University of Lodz, 90-572 Lodz, Poland)

  • Thomas Rosemann

    (Institute of Primary Care, University Hospital Zurich, 8091 Zurich, Switzerland)

  • Beat Knechtle

    (Institute of Primary Care, University Hospital Zurich, 8091 Zurich, Switzerland
    Medbase St. Gallen Am Vadianplatz, 9001 St. Gallen, Switzerland)

Abstract

Searching for potential relations between changes in 25(OH)D concentration and in physical fitness is an interesting scientific topic. Thus, the main purpose of this study was to investigate the changes in serum concentrations of 25(OH)D in young football players in conjunction with indicators determining bone resorption and physical fitness. A total of 35 young soccer players were tested during the autumn competition period. Biochemical analysis of blood, aerobic capacity, running speed and power tests (Wingate test, squat jump, counter movement jump) were carried out at the beginning and at the end of the competition period. Significant decrements in concentration of 25(OH)D from 33.9 ± 5.87 to 23.7 ± 5.58 ng/mL were noted after the analyzed competition period. There were no significant changes in aerobic capacity along the competition period. Significant improvements were observed in 10 m sprint, 30 m sprint ( p < 0.001), maximal power ( p = 0.011) and total work capacity ( p = 0.024). We found that the effect of changes in the players’ physical fitness does not occur in relation to 25 OH(D) concentration but occurs when these changes are analyzed as a function of the duration of the observation period. Changes in physical fitness of soccer players are determined by other factors then 25(OH)D concentration.

Suggested Citation

  • Joanna Jastrzębska & Maria Skalska & Łukasz Radzimiński & Agnieszka Niewiadomska & Artur Myśliwiec & Guillermo F. López-Sánchez & Michał Brzeziański & Thomas Rosemann & Beat Knechtle, 2021. "Seasonal Changes in 25(OH)D Concentration in Young Soccer Players—Implication for Bone Resorption Markers and Physical Performance," IJERPH, MDPI, vol. 18(6), pages 1-13, March.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:6:p:2932-:d:516066
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    References listed on IDEAS

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    1. Hadi Nobari & Luis Felipe Tubagi Polito & Filipe Manuel Clemente & Jorge Pérez-Gómez & Mina Ahmadi & Miguel Ángel Garcia-Gordillo & Ana Filipa Silva & Jose Carmelo Adsuar, 2020. "Relationships Between Training Workload Parameters with Variations in Anaerobic Power and Change of Direction Status in Elite Youth Soccer Players," IJERPH, MDPI, vol. 17(21), pages 1-15, October.
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