Associations between objective and self-reported physical activity and vitamin D serum levels in the US population.
Cancer Causes Control
; 26(6): 881-91, 2015 Jun.
Article
em En
| MEDLINE
| ID: mdl-25791130
ABSTRACT
PURPOSE:
Both low levels of vitamin D and of physical activity are associated with all-cause, cancer, and cardiovascular disease mortality. There is some evidence based on self-reported activity levels that physically more active individuals have higher vitamin D serum levels. The aim was to investigate associations between objectively measured and self-reported physical activity, respectively, and vitamin D serum concentrations in the US population.METHODS:
Data from NHANES 2003-2006 (n = 6,370, aged ≥ 18 years) were analyzed using multiple regression analyses. A total of 6,370 individuals aged 18 years and older with valid data on vitamin D serum levels and physical activity were included. Objective physical activity was assessed using accelerometers; self-reported physical activity was based on the NHANES physical activity questionnaire.RESULTS:
An increase of 10 min of objectively measured and self-reported moderate-to-vigorous activities per day was associated with an increase in circulating vitamin D of 0.32 ng/ml (95% CI 0.17, 0.48) and of 0.18 ng/ml (95% CI 0.12, 0.23), respectively. The odds ratio for being vitamin D deficient (< 20 ng/ml) if being insufficiently active compared with being sufficiently active was 1.32 (1.11, 1.57). Associations were not stronger for self-reported outdoor activities compared with indoor activities.CONCLUSIONS:
Physical activity may be a way to achieve higher vitamin D serum levels in the population. Factors other than sun exposure that may be responsible for higher vitamin D levels in more active individuals need further investigation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vitamina D
/
Deficiência de Vitamina D
/
Exercício Físico
Tipo de estudo:
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
America do norte
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article