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Association between vitamin D status and testosterone and cortisol in ice hockey players
The identification of the vitamin D receptor in tissues related to testosterone and cortisol production, in conjunction with the observed correlations between vitamin D levels and these hormones in the general population, suggest vitamin D may influence testosterone and cortisol concentrations in at...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Institute of Sport in Warsaw
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6224848/ https://www.ncbi.nlm.nih.gov/pubmed/30449937 http://dx.doi.org/10.5114/biolsport.2018.74631 |
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author | Fitzgerald, John S. Orysiak, Joanna Wilson, Patrick B. Mazur-Różycka, Joanna Obminski, Zbigniew |
author_facet | Fitzgerald, John S. Orysiak, Joanna Wilson, Patrick B. Mazur-Różycka, Joanna Obminski, Zbigniew |
author_sort | Fitzgerald, John S. |
collection | PubMed |
description | The identification of the vitamin D receptor in tissues related to testosterone and cortisol production, in conjunction with the observed correlations between vitamin D levels and these hormones in the general population, suggest vitamin D may influence testosterone and cortisol concentrations in athletes. A cross-sectional study design was used to evaluate the association between 25(OH)D and testosterone and cortisol concentrations in young male ice hockey players (n = 50). All athletes were recruited during October from the Sosnowiec area, Poland (50° N). Commercially available ELISA kits were used to determine total serum 25(OH)D, testosterone and cortisol concentrations. Serum 25(OH)D concentration was analyzed as both a continuous and dichotomous variable, binned at the criteria for deficiency (< 20 ng·ml(-1)), to investigate a threshold effect. Neither continuous (r = 0.18, p = 0.20) nor dichotomous (r = 0.16, p = 0.27) 25(OH)D concentration was significantly correlated with testosterone concentration. A small, inverse correlation (r = -0.30, p = 0.04) was detected between 25(OH)D and cortisol concentrations when analyzed as a dichotomous variable only. Serum 25(OH)D concentration was neither associated with testosterone (p = 0.09) nor cortisol concentrations (p = 0.11) after adjusting for age, fat free mass and fat mass in sequential linear regression. The inability of vitamin D status to independently predict testosterone and cortisol concentrations suggests that any performance-enhancing effects of vitamin D in athletes are unlikely to be mediated primarily through these hormones, at least amongst young male ice-hockey players. |
format | Online Article Text |
id | pubmed-6224848 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Institute of Sport in Warsaw |
record_format | MEDLINE/PubMed |
spelling | pubmed-62248482018-11-16 Association between vitamin D status and testosterone and cortisol in ice hockey players Fitzgerald, John S. Orysiak, Joanna Wilson, Patrick B. Mazur-Różycka, Joanna Obminski, Zbigniew Biol Sport Original Paper The identification of the vitamin D receptor in tissues related to testosterone and cortisol production, in conjunction with the observed correlations between vitamin D levels and these hormones in the general population, suggest vitamin D may influence testosterone and cortisol concentrations in athletes. A cross-sectional study design was used to evaluate the association between 25(OH)D and testosterone and cortisol concentrations in young male ice hockey players (n = 50). All athletes were recruited during October from the Sosnowiec area, Poland (50° N). Commercially available ELISA kits were used to determine total serum 25(OH)D, testosterone and cortisol concentrations. Serum 25(OH)D concentration was analyzed as both a continuous and dichotomous variable, binned at the criteria for deficiency (< 20 ng·ml(-1)), to investigate a threshold effect. Neither continuous (r = 0.18, p = 0.20) nor dichotomous (r = 0.16, p = 0.27) 25(OH)D concentration was significantly correlated with testosterone concentration. A small, inverse correlation (r = -0.30, p = 0.04) was detected between 25(OH)D and cortisol concentrations when analyzed as a dichotomous variable only. Serum 25(OH)D concentration was neither associated with testosterone (p = 0.09) nor cortisol concentrations (p = 0.11) after adjusting for age, fat free mass and fat mass in sequential linear regression. The inability of vitamin D status to independently predict testosterone and cortisol concentrations suggests that any performance-enhancing effects of vitamin D in athletes are unlikely to be mediated primarily through these hormones, at least amongst young male ice-hockey players. Institute of Sport in Warsaw 2018-03-31 2018-09 /pmc/articles/PMC6224848/ /pubmed/30449937 http://dx.doi.org/10.5114/biolsport.2018.74631 Text en Copyright © Biology of Sport 2018 http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Paper Fitzgerald, John S. Orysiak, Joanna Wilson, Patrick B. Mazur-Różycka, Joanna Obminski, Zbigniew Association between vitamin D status and testosterone and cortisol in ice hockey players |
title | Association between vitamin D status and testosterone and cortisol in ice hockey players |
title_full | Association between vitamin D status and testosterone and cortisol in ice hockey players |
title_fullStr | Association between vitamin D status and testosterone and cortisol in ice hockey players |
title_full_unstemmed | Association between vitamin D status and testosterone and cortisol in ice hockey players |
title_short | Association between vitamin D status and testosterone and cortisol in ice hockey players |
title_sort | association between vitamin d status and testosterone and cortisol in ice hockey players |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6224848/ https://www.ncbi.nlm.nih.gov/pubmed/30449937 http://dx.doi.org/10.5114/biolsport.2018.74631 |
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