ArticleFrontiers in nutrition2024
The relationship between physical activity levels and serum vitamin D levels varies among children and adolescents in different age groups.
Article in Frontiers in nutrition, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Prevalence and influencing factors of vitamin D deficiency in women with polycystic ovary syndrome: a systematic review and meta-analysis.Frontiers in nutrition · 2026Pooled it
- Article
- Article
- Association of physical activity and screen time with vitamin D status among children with disabilities.Frontiers in pediatrics · 2025Article
- The association between the serum fat-soluble vitamins (A, D and E) and the intake of live microbes: a national population based cross-sectional study.Frontiers in nutrition · 2025Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: The objective of the present study was to explore the relationship between physical activity (PA) levels and serum vitamin D levels in children and adolescents of different ages and sexes. Methods: All the data in this study were collected during two cycles (2011-2014) of the National Health and Nutrition Examination Survey (NHANES). Our study participants were aged ≥3 and < 20 years and had valid data for all variables, including vitamin D intake, serum vitamin D levels, PA volume and intensity levels, amount of time spent outdoors, body mass index (BMI), sex, and race. Results: A total of 3,312 participants were included in the study; 1,672 were boys (50.4%), and 1,640 were girls (49.6%). A total of 250 (7.5%) children were aged 3-5 years, 1,474 (44.5%) were aged 6-11 years, and 1,588 (47.9%) were aged 12-19 years. Both PA volume and intensity were positively related to serum vitamin D levels in the 6-11-year-old boys and girls ( Conclusion: The relationship between PA and vitamin D varies among children and adolescents of different sexes and ages, and the sun exposure level and BMI had mediating effects on the relationship between PA and the serum vitamin D level. The mechanism of the relationship between PA and increased serum vitamin D levels needs further in-depth research.
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