The Effect of Vitamin D3 Supplementation on Physical Capacity among Active College-Aged Males

Vitamin D3 supplementation can affect strength and power; however, the effect on both aerobic and anaerobic performance remains unclear. Here, we investigate the effects of eight weeks of a high dose of vitamin D3 supplementation and its impact on circulating 25-hydroxyvitamin D (25-OH-D3) concentra...

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Bibliographic Details
Published in:Nutrients 2020-06, Vol.12 (7), p.1936
Main Authors: Kujach, Sylwester, Lyzwinski, Dariusz, Chroboczek, Maciej, Bialowas, Dawid, Antosiewicz, Jedrzej, Laskowski, Radoslaw
Format: Article
Language:English
Subjects:
25-Hydroxyvitamin D
Aerobic capacity
Age
Automation
Body composition
Diet
Exercise
Experiments
Laboratories
Medical research
Musculoskeletal system
Nutrition research
Physical fitness
Studies
Variance analysis
Vitamin D
Vitamin D3
Vitamin deficiency
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Summary:Vitamin D3 supplementation can affect strength and power; however, the effect on both aerobic and anaerobic performance remains unclear. Here, we investigate the effects of eight weeks of a high dose of vitamin D3 supplementation and its impact on circulating 25-hydroxyvitamin D (25-OH-D3) concentrations and selected indicators of physical capacity. Subjects (n = 28, age 21.1 ± 1.6) were divided into two groups: supplemented (SUP), which was given 6000 IU of vitamin D3 daily for eight weeks; and placebo group (PLA). Serum 25-OH-D3 concentrations were determined in pre- and post-intervention. Aerobic ( V . O2max test) and anaerobic (Wingate Anaerobic Test) capacity were determined before and after the supplementation. The mean baseline concentration of 25-OH-D3 was recognized as deficient (20 ng/mL) and significantly increased over time in the supplemented group (p < 0.01, η2 = 0.86), whilst it remained unchanged in the placebo group. Moreover, the supplementation caused a significant improvement in maximal aerobic (p < 0.05, η2 = 0.27) and anaerobic power (p < 0.01, η2 = 0.51) whereas no changes were observed in PLA group. The V . O2max differences were also significant in the supplemented group (p < 0.05). In summary, the changes in aerobic and anaerobic capacity observed in this study were associated with a serum concentration of 25-OH-D3. Our data imply that vitamin D3 supplementation with a dose of 6000 IU daily for eight weeks is sufficient to improve physical capacity and vitamin D3 status.
ISSN:2072-6643
2072-6643
DOI:10.3390/nu12071936