The Effect of Supplementation of Vitamin D3 on Inflammation Induced by 100 km Running, Iron Metabolism and Erythropoiesis

• Status: Completed
• Trial end date: 2022-12-31
• Target enrollment: 0
• Participant gender: Male

Summary

A group of runners received vitamin D (10,000 IU - international unit per day) for two weeks. The aim of the intervention was to check the effect of vitamin D supplementation on selected parameters of inflammation and iron metabolism in comparison with the placebo group. Blood was collected before and after supplementation. Next: before, after 25, 50, 75,100 km running and 12 hours after the run. The data were subjected to statistical analysis.

• Phase: N/A
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Gdansk University of Physical Education and Sport
• Treatments: Cholecalciferol; Vitamin D

Criteria

Inclusion Criteria:

• male

• athletes running ultra-marathons

Exclusion Criteria:

• vitamin D3 supplementation

• multivitamin and iron supplementation

• serum 25(OH)D low < 10 ng/mL

• serum 25(OH)D high > 100 ng/mL

• haemoglobin < 10 g/dL

• other (sports injury, tournament)