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=...
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Termedia Publishing House
2015-11-01
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Series: | Biology of Sport |
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Online Access: | http://www.termedia.pl/Vitamin-D-status-and-determinants-of-deficiency-in-non-supplemented-athletes-during-the-winter-months-in-Tunisia,78,26185,1,1.html |
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author | A Sghaier-Ayadi M Feki I Bezrati-Ben Ayed O Abene MK Ben Fredj K Kaabachi A Chaouachi |
author_facet | A Sghaier-Ayadi M Feki I Bezrati-Ben Ayed O Abene MK Ben Fredj K Kaabachi A Chaouachi |
author_sort | A Sghaier-Ayadi |
collection | DOAJ |
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. |
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issn | 0860-021X 2083-1862 |
language | English |
last_indexed | 2024-12-20T04:16:33Z |
publishDate | 2015-11-01 |
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series | Biology of Sport |
spelling | doaj.art-4cb1430fb4c844a3be5dd1ea9cae6e652022-12-21T19:53:46ZengTermedia Publishing HouseBiology of Sport0860-021X2083-18622015-11-0132428128710.5604/20831862.116369026185Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in TunisiaA Sghaier-AyadiM FekiI Bezrati-Ben AyedO AbeneMK Ben FredjK KaabachiA ChaouachiRecent 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.http://www.termedia.pl/Vitamin-D-status-and-determinants-of-deficiency-in-non-supplemented-athletes-during-the-winter-months-in-Tunisia,78,26185,1,1.htmlcholecalciferol hypovitaminosis D sun exposure vitamin D inadequacy |
spellingShingle | A Sghaier-Ayadi M Feki I Bezrati-Ben Ayed O Abene MK Ben Fredj K Kaabachi A Chaouachi Vitamin D status and determinants of deficiency in non-supplemented athletes during the winter months in Tunisia Biology of Sport cholecalciferol hypovitaminosis D sun exposure vitamin D inadequacy |
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 | cholecalciferol hypovitaminosis D sun exposure vitamin D inadequacy |
url | http://www.termedia.pl/Vitamin-D-status-and-determinants-of-deficiency-in-non-supplemented-athletes-during-the-winter-months-in-Tunisia,78,26185,1,1.html |
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