Trial reportNutrients2020
Ultra-Marathon-Induced Increase in Serum Levels of Vitamin D Metabolites: A Double-Blind Randomized Controlled Trial.
Trial report in Nutrients, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07310329 (Effects of High-Dose Vitamin D Supplementation and Physical Exercise on Vitamin D Metabolites in Professional Football Players), which is not on this map. Cited by 21 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Effects of High-Dose Vitamin D Supplementation and Physical Exercise on Vitamin D Metabolites in Professional Football Players: A Pilot Study
Who cites it
21 citing papers in PubMed, 29 citations in OpenAlex.
- Effects of High-Dose Vitamin D Supplementation and Physical Exercise on Vitamin D Metabolites in Professional Football Players: A Pilot Study.Nutrients · 2026Trial
- Single high-dose vitamin D supplementation impacts ultramarathon-induced changes in serum levels of bone turnover markers: a double-blind randomized controlled trial.Journal of the International Society of Sports Nutrition · 2025Trial
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- Plant Oils in Sport Nutrition: A Narrative Literature Review.Nutrients · 2025Review
- Article
- Increase in testosterone and cortisol one week after repeated exercise in a cold environment.Frontiers in physiology · 2025Article
- Ubiquinone (Coenzyme Q-10) Supplementation Influences Exercise-Induced Changes in Serum 25(OH)DAntioxidants (Basel, Switzerland) · 2024Article
- The effect of aquatic training and vitamin D3 supplementation on bone metabolism in postmenopausal obese women.Journal of exercise science and fitness · 2024Article
- Seasonal changes in free 25-(OH)D and vitamin D metabolite ratios and their relationship with psychophysical stress markers in male professional football players.Frontiers in physiology · 2023Article
- Nordic Walking training in BungyPump form improves cognitive functions and physical performance and induces changes in amino acids and kynurenine profiles in older adults.Frontiers in endocrinology · 2023Article
- Effects of a 4400 km ultra-cycling non-competitive race and related training on body composition and circulating progenitors differentiation.Journal of translational medicine · 2022Article
- Review
- Bariatric Surgery Induced Changes in Blood Cholesterol Are Modulated by Vitamin D Status.Nutrients · 2022Article
- Diet, Sun, Physical Activity and Vitamin D Status in Children with Inflammatory Bowel Disease.Nutrients · 2022Article
- Effect of Medically Supervised Prolonged Fasting Therapy on Vitamin D, B12, Body Weight, Body Mass Index, Vitality and Quality of Life: A Randomized Control Trial.Nutrition and metabolic insights · 2022Article
- Relationship Between Metabolites of Vitamin D, Free 25-(OH)D, and Physical Performance in Indoor and Outdoor Athletes.Frontiers in physiology · 2022Article
- Article
- Serum levels of bone formation and resorption markers in relation to vitamin D status in professional gymnastics and physically active men during upper and lower body high-intensity exercise.Journal of the International Society of Sports Nutrition · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 4 institutions in 1 country.
Funding
Abstract
purposeWhile an increasing number of studies demonstrate the importance of vitamin D for athletic performance, the effects of any type of exercise on vitamin D metabolism are poorly characterized. We aimed to identify the responses of some vitamin D metabolites to ultra-marathon runs.
methodsA repeated-measures design was implemented, in which 27 amateur runners were assigned into two groups: those who received a single dose of vitamin D
resultsIn both groups of runners, serum 25(OH)D
conclusionsUltra-marathon induces the mobilization of vitamin D into the blood. Furthermore, the 24,25(OH)
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.