Evidence map›Paper›PMID 26288575›Full record

ReviewJournal of the International Society of Sports Nutrition2015

Plausible ergogenic effects of vitamin D on athletic performance and recovery.

Dylan T Dahlquist, Brad P Dieter, Michael S Koehle

Registry-linked trialOpen access · goldAbstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Journal of the International Society of Sports Nutrition, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05489666 (Effects of Vitamin D on Skeletal Muscle Strength in Resistance Trained Adult Females), which is not on this map. Cited by 75 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 7 pooled it
7.8field-weighted citation impact, top 2% of its field
1 · What the graph read from it

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.

2 · The registry

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.

NCT05489666 naunknown statusnot on this mapstarted 2022, after this paper: background citation

Effects of Vitamin D on Skeletal Muscle Strength in Resistance Trained Adult Females

TypeinterventionalSponsorAuburn UniversityRan2022 to 2023Enrolled40ConditionsNutrition Status, Nutritional Requirements, Sports Nutritional SciencesArmsNature Made Vitamin D3 5,000 IU, 125mcg, Placebo
3 · Its place in the literature

Who cites it

75 citing papers in PubMed, 7 syntheses or guidelines pooled it, 149 citations in OpenAlex.

  1. Pooled it
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  14. Vitamin DJournal of cachexia, sarcopenia and muscle · 2021
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  20. Vitamin DEuropean journal of nutrition · 2017
    Trial

15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 2 countries.

Dylan T DahlquistUBC Environmental Physiology Laboratory, School of Kinesiology, University of British Columbia, Vancouver, BC Canada.
Brad P DieterProvidence Medical Research Center, Providence Sacred Heart Medical Center and Children's Hospital, Research Discovery Lab, Spokane, WA 99204 USA.
Michael S KoehleSimon Fraser University, Biomedical Physiology and Kinesiology (BPK), 8888 University Drive - Burnaby, Vancouver, BC V5A 1S6 Canada.
Providence Sacred Heart Medical Center · USSimon Fraser University · CAUniversity of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this review is to examine vitamin D in the context of sport nutrition and its potential role in optimizing athletic performance. Vitamin D receptors (VDR) and vitamin D response elements (VDREs) are located in almost every tissue within the human body including skeletal muscle. The hormonally-active form of vitamin D, 1,25-dihydroxyvitamin D, has been shown to play critical roles in the human body and regulates over 900 gene variants. Based on the literature presented, it is plausible that vitamin D levels above the normal reference range (up to 100 nmol/L) might increase skeletal muscle function, decrease recovery time from training, increase both force and power production, and increase testosterone production, each of which could potentiate athletic performance. Therefore, maintaining higher levels of vitamin D could prove beneficial for athletic performance. Despite this situation, large portions of athletic populations are vitamin D deficient. Currently, the research is inconclusive with regards to the optimal intake of vitamin D, the specific forms of vitamin D one should ingest, and the distinct nutrient-nutrient interactions of vitamin D with vitamin K that affect arterial calcification and hypervitaminosis. Furthermore, it is possible that dosages exceeding the recommendations for vitamin D (i.e. dosages up to 4000-5000 IU/day), in combination with 50 to 1000 mcg/day of vitamin K1 and K2 could aid athletic performance. This review will investigate these topics, and specifically their relevance to athletic performance.

Indexed as

Athletic PerformanceDietary SupplementsDose-Response Relationship, DrugHumansMuscle, SkeletalMuscle StrengthPerformance-Enhancing SubstancesSports Nutritional Physiological PhenomenaVitamin DVitamin D DeficiencyVitamin KPerformance-Enhancing SubstancesVitamin DVitamin KAthleteDosageHormonesPerformanceRecoverySkeletal muscleTestosteroneVitamin DVitamin K

Identifiers

PMID26288575
PMCPMC4539891
OpenAlexW2143366406

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.