Association between Blood Vitamin D Levels and Regular Physical Activity in Korean Adolescentsopen access
- Authors
- Kim, Jiyoun; Park, Jinho; So, Wi-Young
- Issue Date
- Jul-2022
- Publisher
- MDPI
- Keywords
- adolescents; KNHANES; physical activity; vitamin D deficiency
- Citation
- HEALTHCARE, v.10, no.7
- Journal Title
- HEALTHCARE
- Volume
- 10
- Number
- 7
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/85540
- DOI
- 10.3390/healthcare10071277
- ISSN
- 2227-9032
- Abstract
- This study aimed to investigate the relationship between vitamin D levels and physical activity in adolescents using data from the Korea National Health and Nutrition Survey (KNHANES). The serum vitamin D concentrations were measured between 2008 and 2014 and analyzed. Adolescents aged 13 to 18 years comprised 4527 of the 61,370 participants surveyed. A final dataset including 2811 adolescents was obtained after those with missing data were excluded. Those who did not participate or only participated in 1-3 days of intense physical activity (p < 0.001), moderate physical activity (p = 0.002), and muscular exercise (weight training) (p < 0.001) showed a higher level of vitamin D deficiency than those who performed the same activities 4-7 days per week. Our results showed that most of the adolescents (76%) were vitamin D-deficient, and the risk was higher among high school than middle school students (odds ratio (OR) = 1.70, 95% confidence interval (CI) = 1.40-2.06; p < 0.001) and higher in girls than boys (OR = 1.43, 95% CI = 1.18-1.72; p < 0.001). Reduced participation in physical activity was correlated with vitamin D deficiency. Furthermore, vitamin D deficiency was associated with a lower frequency of participation in all forms of physical activity, and the association increased significantly with an increase in body mass index.
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