Cargando…

Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in Tunisia

Recent reports suggest that hypovitaminosis D in athletes is as common as in the general population. This study was devised to examine vitamin D status and determinants of deficiency in athletes living in a sunny country (Tunisia). One hundred and fifty national elite athletes, training outdoors (n...

Descripción completa

Detalles Bibliográficos
Autores principales: Sghaier-Ayadi, A, Feki, M, Ayed, I Bezrati-Ben, Abene, O, Fredj, MK Ben, Kaabachi, K, Chaouachi, A
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Institute of Sport in Warsaw 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4672158/
https://www.ncbi.nlm.nih.gov/pubmed/26681829
http://dx.doi.org/10.5604/20831862.1163690
_version_ 1782404515858743296
author Sghaier-Ayadi, A
Feki, M
Ayed, I Bezrati-Ben
Abene, O
Fredj, MK Ben
Kaabachi, K
Chaouachi, A
author_facet Sghaier-Ayadi, A
Feki, M
Ayed, I Bezrati-Ben
Abene, O
Fredj, MK Ben
Kaabachi, K
Chaouachi, A
author_sort Sghaier-Ayadi, A
collection PubMed
description Recent reports suggest that hypovitaminosis D in athletes is as common as in the general population. This study was devised to examine vitamin D status and determinants of deficiency in athletes living in a sunny country (Tunisia). One hundred and fifty national elite athletes, training outdoors (n = 83) or indoors (n = 67), were enrolled from January to February 2012. Plasma 25-hydroxyvitamin D was measured by radioimmunoassay. Concentrations were between 50 and 75 nmol · l(-1) in 21.3% of participants, between 25 and 50 nmol · l(-1) in 55.3% of participants and <25 nmol · l(-1) in 14.7% of participants. The concentrations were significantly lower in indoor athletes than outdoor athletes (36.2±19.0 nmol · l(-1) vs. 49.1±19.2 nmol · l(-1); p < 0.001). In multivariate analysis, vitamin D deficiency (25-hydroxyvitamin D <50 nmol · l(-1)) was associated with indoor sports [multi-adjusted odds ratio (95% confidence interval), 5.03 (1.64-15.4); p = 0.005], female gender [3.72 (1.44-9.65); p = 0.007] and age < 18 years [2.40 (1.01-5.85); p = 0.05]. Athletes living in sun-rich environments are exposed to a high risk of vitamin D inadequacy. Given the importance of vitamin D in health and athletic ability, targeting sufficient levels of plasma 25-hydroxyvitamin D in athletes is well justified.
format Online
Article
Text
id pubmed-4672158
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher Institute of Sport in Warsaw
record_format MEDLINE/PubMed
spelling pubmed-46721582015-12-17 Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in Tunisia Sghaier-Ayadi, A Feki, M Ayed, I Bezrati-Ben Abene, O Fredj, MK Ben Kaabachi, K Chaouachi, A Biol Sport Original Article Recent reports suggest that hypovitaminosis D in athletes is as common as in the general population. This study was devised to examine vitamin D status and determinants of deficiency in athletes living in a sunny country (Tunisia). One hundred and fifty national elite athletes, training outdoors (n = 83) or indoors (n = 67), were enrolled from January to February 2012. Plasma 25-hydroxyvitamin D was measured by radioimmunoassay. Concentrations were between 50 and 75 nmol · l(-1) in 21.3% of participants, between 25 and 50 nmol · l(-1) in 55.3% of participants and <25 nmol · l(-1) in 14.7% of participants. The concentrations were significantly lower in indoor athletes than outdoor athletes (36.2±19.0 nmol · l(-1) vs. 49.1±19.2 nmol · l(-1); p < 0.001). In multivariate analysis, vitamin D deficiency (25-hydroxyvitamin D <50 nmol · l(-1)) was associated with indoor sports [multi-adjusted odds ratio (95% confidence interval), 5.03 (1.64-15.4); p = 0.005], female gender [3.72 (1.44-9.65); p = 0.007] and age < 18 years [2.40 (1.01-5.85); p = 0.05]. Athletes living in sun-rich environments are exposed to a high risk of vitamin D inadequacy. Given the importance of vitamin D in health and athletic ability, targeting sufficient levels of plasma 25-hydroxyvitamin D in athletes is well justified. Institute of Sport in Warsaw 2015-08-04 2015-12 /pmc/articles/PMC4672158/ /pubmed/26681829 http://dx.doi.org/10.5604/20831862.1163690 Text en Copyright © Biology of Sport 2015 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 Article
Sghaier-Ayadi, A
Feki, M
Ayed, I Bezrati-Ben
Abene, O
Fredj, MK Ben
Kaabachi, K
Chaouachi, A
Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in Tunisia
title Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in Tunisia
title_full Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in Tunisia
title_fullStr Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in Tunisia
title_full_unstemmed Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in Tunisia
title_short Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in Tunisia
title_sort vitamin d status and determinants of deficiency in non-supplemented athletes during the winter months in tunisia
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4672158/
https://www.ncbi.nlm.nih.gov/pubmed/26681829
http://dx.doi.org/10.5604/20831862.1163690
work_keys_str_mv AT sghaierayadia vitamindstatusanddeterminantsofdeficiencyinnonsupplementedathletesduringthewintermonthsintunisia
AT fekim vitamindstatusanddeterminantsofdeficiencyinnonsupplementedathletesduringthewintermonthsintunisia
AT ayedibezratiben vitamindstatusanddeterminantsofdeficiencyinnonsupplementedathletesduringthewintermonthsintunisia
AT abeneo vitamindstatusanddeterminantsofdeficiencyinnonsupplementedathletesduringthewintermonthsintunisia
AT fredjmkben vitamindstatusanddeterminantsofdeficiencyinnonsupplementedathletesduringthewintermonthsintunisia
AT kaabachik vitamindstatusanddeterminantsofdeficiencyinnonsupplementedathletesduringthewintermonthsintunisia
AT chaouachia vitamindstatusanddeterminantsofdeficiencyinnonsupplementedathletesduringthewintermonthsintunisia