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Cited by 42Sports Performance and TrainingVitamin D Research StudiesExercise and Physiological Responses

Vitamin D Supplementation and Physical Activity of Young Soccer Players during High-Intensity Training

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Skalska, Maria, Nikolaidis, Pantelis Theo, Knechtle, Beat, Rosemann, Thomas Johannes, Radzimiński, Łukasz, Jastrzębska, Joanna, Kaczmarczyk, Mariusz, Myśliwiec, Artur +3 more·2019·Nutrients
DOI 10.3390/nu11020349PMC PMC6412881
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Abstract

The aim of this study was to confirm that vitamin D supplementation of young soccer players during eight-week high-intensity training would have a significant effect on their motion activity. The subjects were divided into two groups: the experimental one, which was supplemented with vitamin D (SG, n = 20), and the placebo group (PG, n = 16), which was not supplemented with vitamin D. All the players were subjected to the same soccer training, described as High-Intensity Interval Training (HIIT). The data of the vitamin D status, time motion parameters and heart rate were collected just before and after the intervention. A significant increase in 25(OH)D concentration (119%) was observed in the supplemented group, while the non-supplemented group showed a decrease of 8.4%. Based on the obtained results, it was found that physical activity indicators in the players were significantly improved during small-sided games at the last stage of the experiment. However, taking into account the effect of supplementation with vitamin D, there were no statistically significant differences between the placebo and the supplemented groups; thus, the effect size of the conducted experiment was trivial.

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  • Oral vitamin D supplementation is an alternative to obtain adequate levels of 25(OH)D3 all year round, but especially during the winter season.

    “Our data confirm previous results, where oral vitamin D supplementation has been suggested as an alternative to obtain adequate levels of 25(OH)D3 all year round, but especially during the winter season [2,7,20].”

    From Influence of Sunlight and Oral D3 Supplementation on Serum 25(OH)D Concentration and Exercise Performance in Elite Soccer Players (2020) · cites this paper as [20]

    The Results report that supplementation raised 25(OH)D levels in young soccer players over eight weeks, and the Introduction discusses a need for supplementation during and directly after winter. The paper does not establish that oral supplementation maintains adequate levels all year round. (LLM, conf=0.87)

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Authors
Skalska, M., Nikolaidis, P. T., Knechtle, B., Rosemann, T. J., Radzimiński, Ł., Jastrzębska, J., Kaczmarczyk, M., Myśliwiec, A., Dragos, P., López-Sánchez, G. F., & Jastrzębski, Z.
Affiliations
  • University Clinical Centre (PL)
  • Laboratory of Exercise Testing, Hellenic Air Force Academy, 13671 Dekelia, Greece
  • University of Zurich (CH)
  • Gdansk University of Physical Education and Sport (PL)
  • Gdańsk Medical University (PL)
  • Department of Physical Education, Sport and Physical Therapy, University of Oradea, 410087 Oradea, Romania
  • Faculty of Sport Sciences, University of Murcia, 30720 Murcia, Spain
Corresponding author
Knechtle, Beat
ORCID
Venue
Nutrients
Publisher
MDPI AG
Published
2019-02-06
Volume
11
Issue
2
Pages
349
ISSN
2072-6643 (ISSN-L)
DOI
10.3390/nu11020349
PMC
PMC6412881
OpenAlex
W2915057838
Cited by
42
References
3
Citations by year
2026: 4 · 2025: 2 · 2024: 5 · 2023: 6 · 2022: 10 · 2021: 4 · 2020: 6 · 2019: 5
FWCI
6.46
Type
journal article
Language
en
Open access
Licence
Locations
  • Nutrients (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, cc-by)
  • Zurich Open Repository and Archive (University of Zurich)
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Vitamin D Research Studies
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
vitamin D supplementation, youth football players, high-intensity interval training, physical activity, 25-hydroxyvitamin D, heart rate, small-sided games, vitamin D status, placebo effect
MeSH terms
High-Intensity Interval Training, Adolescent, Double-Blind Method, Female, Heart Rate, Humans, Male, Soccer, Time and Motion Studies, Vitamin D, Vitamins, Exercise, Dietary Supplements

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