ORIGINAL RESEARCH article
Front. Pediatr.
Sec. Social Pediatrics
Volume 13 - 2025 | doi: 10.3389/fped.2025.1558685
This article is part of the Research TopicHealth benefit and promotion of 24-hour movement behaviors in children and adolescentsView all 5 articles
Association of Physical Activity and Screen Time with Vitamin D Status among Children with Disabilities
Provisionally accepted
- 1Jinan Massage Hospital, Jinan, China
- 2School of Acupuncture, Moxibustion and Tuina, Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
- 3Jinan Qimingxing Children's Rehabilitation Center, Jinan, China
- 4Department of Rehabilitation, Xiong'an Xuanwu Hospital, Xiongan, China
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Background Physical activity (PA) and screen time (ST) may influence vitamin D status in children with disabilities, yet their relationships remain understudied in this population.Methods We analyzed data from 645 children with disabilities aged 3-19 years. PA and ST were categorized into quartiles. Multiple linear regression models were used to examine associations between PA, ST, and vitamin D levels, adjusting for demographic and clinical characteristics.Results Higher PA was positively associated with vitamin D levels (β=0.984, 95% CI: 0.388 to 1.58, p=0.003) in fully adjusted models. Participants in the highest PA quartile had significantly higher vitamin D levels compared to the lowest quartile (β=6.884, 95% CI: 2.736 to 11.031, p=0.003). Conversely, ST showed an inverse association with vitamin D levels (β=-0.8, 95% CI: -1.414 to -0.186, p=0.015), with the highest ST quartile showing significantly lower vitamin D levels compared to the lowest quartile (β=-8.098, 95% CI: -13.318 to -2.877, p=0.005). Males were more likely to engage in high PA (66.31%), and both PA and ST showed significant age-related patterns.Conclusions Our findings reveal clear links between physical activity, screen time, and vitamin D levels in children with disabilities. Promoting physical activity and reducing screen time may be effective strategies to improve vitamin D status in this population.
Keywords: NHANES, children with disabilities, physical activity, screen time, Vitamin D
Received: 10 Jan 2025; Accepted: 29 Apr 2025.
Copyright: © 2025 Wang, WANG, Sun, Li and Liu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Su Liu, Department of Rehabilitation, Xiong'an Xuanwu Hospital, Xiongan, China
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