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Vitamin D Status and Supplementation Practices in Elite Irish Athletes: An Update from 2010/2011
Vitamin D deficiency is a global health concern that is prevalent in Ireland. The vitamin D status of elite Irish athletes following implementation of a revised supplementation policy in 2010/2011 has not been explored to date. This study aimed to assess the vitamin D status of elite Irish athletes...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4997398/ https://www.ncbi.nlm.nih.gov/pubmed/27517954 http://dx.doi.org/10.3390/nu8080485 |
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author | Todd, Joshua Madigan, Sharon Pourshahidi, Kirsty McSorley, Emeir Laird, Eamon Healy, Martin Magee, Pamela |
author_facet | Todd, Joshua Madigan, Sharon Pourshahidi, Kirsty McSorley, Emeir Laird, Eamon Healy, Martin Magee, Pamela |
author_sort | Todd, Joshua |
collection | PubMed |
description | Vitamin D deficiency is a global health concern that is prevalent in Ireland. The vitamin D status of elite Irish athletes following implementation of a revised supplementation policy in 2010/2011 has not been explored to date. This study aimed to assess the vitamin D status of elite Irish athletes participating in high-profile sports and establish if equatorial travel, supplementation and/or sunbed use predict vitamin D status. Across Ireland, blood samples (n = 92) were obtained from cricketers (n = 28), boxers (n = 21) and women’s rugby sevens players (n = 43) between November 2013 and April 2015. Total 25-hydroxyvitamin D (25(OH)D) concentrations were quantified using LC-MS/MS. Parathyroid hormone and adjusted calcium concentrations were measured by clinical biochemistry. Athletes completed a questionnaire that queried equatorial travel, supplementation and sunbed use. Vitamin D sufficiency (25(OH)D >50 nmol/L) was evident in 86% of athletes. Insufficiency (31–49 nmol/L) and deficiency (<30 nmol/L) was present in only 12% and 2% of athletes respectively. On average, athletes from all sport disciplines were vitamin D sufficient and 25% reported vitamin D supplementation which was a significant positive predictor of vitamin D status, (OR 4.31; 95% CI 1.18–15.75; p = 0.027). Equatorial travel and sun bed use were reported in 47% and 16% of athletes respectively however these factors did not predict vitamin D status (both p > 0.05). Although different cohorts were assessed, the overall prevalence of vitamin D insufficiency/deficiency was 55% in 2010/2011 compared with only 14% in 2013/2015. Targeted supplementation is highly effective in optimising vitamin D status, negating the need for blanket-supplementation in elite cohorts. |
format | Online Article Text |
id | pubmed-4997398 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-49973982016-08-26 Vitamin D Status and Supplementation Practices in Elite Irish Athletes: An Update from 2010/2011 Todd, Joshua Madigan, Sharon Pourshahidi, Kirsty McSorley, Emeir Laird, Eamon Healy, Martin Magee, Pamela Nutrients Article Vitamin D deficiency is a global health concern that is prevalent in Ireland. The vitamin D status of elite Irish athletes following implementation of a revised supplementation policy in 2010/2011 has not been explored to date. This study aimed to assess the vitamin D status of elite Irish athletes participating in high-profile sports and establish if equatorial travel, supplementation and/or sunbed use predict vitamin D status. Across Ireland, blood samples (n = 92) were obtained from cricketers (n = 28), boxers (n = 21) and women’s rugby sevens players (n = 43) between November 2013 and April 2015. Total 25-hydroxyvitamin D (25(OH)D) concentrations were quantified using LC-MS/MS. Parathyroid hormone and adjusted calcium concentrations were measured by clinical biochemistry. Athletes completed a questionnaire that queried equatorial travel, supplementation and sunbed use. Vitamin D sufficiency (25(OH)D >50 nmol/L) was evident in 86% of athletes. Insufficiency (31–49 nmol/L) and deficiency (<30 nmol/L) was present in only 12% and 2% of athletes respectively. On average, athletes from all sport disciplines were vitamin D sufficient and 25% reported vitamin D supplementation which was a significant positive predictor of vitamin D status, (OR 4.31; 95% CI 1.18–15.75; p = 0.027). Equatorial travel and sun bed use were reported in 47% and 16% of athletes respectively however these factors did not predict vitamin D status (both p > 0.05). Although different cohorts were assessed, the overall prevalence of vitamin D insufficiency/deficiency was 55% in 2010/2011 compared with only 14% in 2013/2015. Targeted supplementation is highly effective in optimising vitamin D status, negating the need for blanket-supplementation in elite cohorts. MDPI 2016-08-09 /pmc/articles/PMC4997398/ /pubmed/27517954 http://dx.doi.org/10.3390/nu8080485 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Todd, Joshua Madigan, Sharon Pourshahidi, Kirsty McSorley, Emeir Laird, Eamon Healy, Martin Magee, Pamela Vitamin D Status and Supplementation Practices in Elite Irish Athletes: An Update from 2010/2011 |
title | Vitamin D Status and Supplementation Practices in Elite Irish Athletes: An Update from 2010/2011 |
title_full | Vitamin D Status and Supplementation Practices in Elite Irish Athletes: An Update from 2010/2011 |
title_fullStr | Vitamin D Status and Supplementation Practices in Elite Irish Athletes: An Update from 2010/2011 |
title_full_unstemmed | Vitamin D Status and Supplementation Practices in Elite Irish Athletes: An Update from 2010/2011 |
title_short | Vitamin D Status and Supplementation Practices in Elite Irish Athletes: An Update from 2010/2011 |
title_sort | vitamin d status and supplementation practices in elite irish athletes: an update from 2010/2011 |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4997398/ https://www.ncbi.nlm.nih.gov/pubmed/27517954 http://dx.doi.org/10.3390/nu8080485 |
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