Trial reportNutrients2013
Higher serum 25-hydroxyvitamin D concentrations associate with a faster recovery of skeletal muscle strength after muscular injury.
Trial report in Nutrients, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 4 of them syntheses that pooled 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.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
69 citing papers in PubMed, 4 syntheses or guidelines pooled it, 128 citations in OpenAlex.
- The Role of Vitamin D in Skeletal Muscle Repair and Regeneration in Animal Models and Humans: A Systematic Review.Nutrients · 2023Pooled it
- Nutritional Strategies in the Rehabilitation of Musculoskeletal Injuries in Athletes: A Systematic Integrative Review.Nutrients · 2023Pooled it
- Vitamin D Metabolic Pathway Components in Orthopedic Patientes-Systematic Review.International journal of molecular sciences · 2022Pooled it
- Effects of Vitamin D in Post-Exercise Muscle Recovery. A Systematic Review and Meta-Analysis.Nutrients · 2021Pooled it
- Trial
- The effect of vitamin D supplementation on serum total 25(OH) levels and biochemical markers of skeletal muscles in runners.Journal of the International Society of Sports Nutrition · 2020Trial
- Trial
- Vitamin D2 supplementation amplifies eccentric exercise-induced muscle damage in NASCAR pit crew athletes.Nutrients · 2013Trial
- Association of serum 25-hydroxyvitamin D concentrations with premature mortality in adult U.S. patients with sarcopenia.BMC public health · 2026Article
- Effect of Vitamin D Supplementation on Total Knee Arthroplasty Outcomes: A Systematic Review.Orthopaedic journal of sports medicine · 2026Review
- The Role of Vitamin D in Postoperative Tendon Healing: A Scoping Review.Orthopaedic journal of sports medicine · 2025Review
- Single-Nucleotide Polymorphisms (SNPs) in Vitamin D Physiology Genes May Modulate Serum 25(OH)D Levels in Well-Trained CrossFitInternational journal of molecular sciences · 2025Observational
- The Importance of Vitamin D and Magnesium in Athletes.Nutrients · 2025Review
- Role of Pre-operative Correction of Vitamin D3 Deficiency in Controlling Post-operative Bone Pain after Unicompartmental Knee Arthroplasty.Malaysian orthopaedic journal · 2024Article
- Effect of serum 25-hydroxyvitamin D level on quadriceps strength: a systematic review and meta-analysis.BMC sports science, medicine & rehabilitation · 2024Article
- Current Aspects of Selected Factors to Modulate Brain Health and Sports Performance in Athletes.Nutrients · 2024Review
- Serum vitamin D insufficiency is correlated with quadriceps neuromuscular functions in patients with anterior cruciate ligament injury: A preliminary study.Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology · 2024Article
- Microbial Champions: The Influence of Gut Microbiota on Athletic Performance via the Gut-Brain Axis.Open access journal of sports medicine · 2024Review
- The relationships of serum vitamin D concentration with linear speed and change of direction performance in soccer players.Frontiers in nutrition · 2024Article
- Vitamin D and Sarcopenia in the Senior People: A Review of Mechanisms and Comprehensive Prevention and Treatment Strategies.Therapeutics and clinical risk management · 2024Review
9 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The primary purpose of this study was to identify if serum 25-hydroxyvitamin D (25(OH)D) concentrations predict muscular weakness after intense exercise. We hypothesized that pre-exercise serum 25(OH)D concentrations inversely predict exercise-induced muscular weakness. Fourteen recreationally active adults participated in this study. Each subject had one leg randomly assigned as a control. The other leg performed an intense exercise protocol. Single-leg peak isometric force and blood 25(OH)D, aspartate and alanine aminotransferases, albumin, interferon (IFN)-γ, and interleukin-4 were measured prior to and following intense exercise. Following exercise, serum 25(OH)D concentrations increased (p < 0.05) immediately, but within minutes, subsequently decreased (p < 0.05). Circulating albumin increases predicted (p < 0.005) serum 25(OH)D increases, while IFN-γ increases predicted (p < 0.001) serum 25(OH)D decreases. Muscular weakness persisted within the exercise leg (p < 0.05) and compared to the control leg (p < 0.05) after the exercise protocol. Serum 25(OH)D concentrations inversely predicted (p < 0.05) muscular weakness (i.e., control leg vs. exercise leg peak isometric force) immediately and days (i.e., 48-h and 72-h) after exercise, suggesting the attenuation of exercise-induced muscular weakness with increasing serum 25(OH)D prior to exercise. Based on these data, we conclude that pre-exercise serum 25(OH)D concentrations could influence the recovery of skeletal muscle strength after an acute bout of intense exercise.
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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.