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Volume 11, Issue 3 (Aug 2026)
JNFS 2026, 11(3): 479-488 |
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Dehghanpour Farashah F, Emami A. The Effect of Moderate Intensity CrossFit Training on Serum Vitamin D Levels and Anthropometric Measures in Overweight/Obese Adult Women: A Randomized Controlled Trial. JNFS 2026; 11 (3) :479-488
URL: http://jnfs.ssu.ac.ir/article-1-1577-en.html
URL: http://jnfs.ssu.ac.ir/article-1-1577-en.html
Department of Physical Education, Taft Branch, Islamic Azad University, Taft, Yazd, Iran.
Abstract: (303 Views)
Vitamin D deficiency is common among women, particularly those who are overweight or obese. There is evidence that physical activity benefits on body vitamin D status. Therefore, this study assessed the effect of CrossFit training on serum 25(OH)D3 levels and anthropometric measures in women. Methods: This randomized clinical trial enrolled 28 overweight/obese adult women. Participants were randomly allocated to a CrossFit (n=14) or a non-intervention group (n=14) for 8 weeks. Participants were then asked to complete CrossFit training for 1 hour, 3 times per week. Fasting levels of 25(OH)D3 and anthropometric measurements, including weight, height, body mass index (BMI), waist-to-hip ratio (WHR), lean body mass (LBM), and body fat mass (BFM), were measured for each participant at the beginning and end of the study. Results: In total, 24 women (12 participants in the CrossFit and 12 participants in the non-intervention group) completed the trial. After 8 weeks of intervention, it was found a significant increase in serum 25(OH)D3 levels in the CrossFit group compared with other group (1.11±0.45 ng/ml in the CrossFit group vs. 0.19±0.44 ng/ml in the non-intervention group, P<0.01). Furthermore, in the CrossFit group, significant decreases were found in body weight, BMI, and WHR and a significant increase in LBM, compared with the non-intervention group (P< 0.05). Conclusion: Findings indicate that 8 weeks of CrossFit training can improve vitamin D levels and anthropometric measures in overweight/obese adult women.
Type of article: orginal article |
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public specific
Received: 2026/01/24 | Published: 2026/08/19 | ePublished: 2026/08/19
Received: 2026/01/24 | Published: 2026/08/19 | ePublished: 2026/08/19
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