Evidence map›Paper›PMID 32162041›Full record

SynthesisEuropean journal of nutrition2020

Effects of vitamin C on oxidative stress, inflammation, muscle soreness, and strength following acute exercise: meta-analyses of randomized clinical trials.

Natiele Camponogara Righi, Felipe Barreto Schuch, Angélica Trevisan De Nardi, Caroline Montagner Pippi, Geovana de Almeida Righi, Gustavo Orione Puntel, Antonio Marcos Vargas da Silva, Luis Ulisses Signori

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in European journal of nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 5 pooled it
6.0field-weighted citation impact, top 3% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

42 citing papers in PubMed, 5 syntheses or guidelines pooled it, 77 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Trial
  7. Trial
  8. Trial
  9. Effect of C242T Polymorphism in the Gene Encoding the NAD(P)H Oxidase p22International journal of environmental research and public health · 2020
    Trial
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

8 authors at 2 institutions in 1 country.

Natiele Camponogara RighiDepartment of Physiotherapy and Rehabilitation, Postgraduate Program in Functional Rehabilitation, Federal University of Santa Maria-UFSM, Av. Roraima nº 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, 97105-900, Brazil.ORCID http://orcid.org/0000-0001-7621-7204
Felipe Barreto SchuchDepartment of Physiotherapy and Rehabilitation, Postgraduate Program in Functional Rehabilitation, Federal University of Santa Maria-UFSM, Av. Roraima nº 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, 97105-900, Brazil.ORCID http://orcid.org/0000-0002-5190-4515
Angélica Trevisan De NardiExercise Pathophysiology Laboratory, Postgraduate Program in Cardiology and Cardiovascular Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.ORCID http://orcid.org/0000-0002-0325-778X
Caroline Montagner PippiDepartment of Physiotherapy and Rehabilitation, Postgraduate Program in Functional Rehabilitation, Federal University of Santa Maria-UFSM, Av. Roraima nº 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, 97105-900, Brazil.ORCID http://orcid.org/0000-0002-8216-8258
Geovana de Almeida RighiDepartment of Physiotherapy and Rehabilitation, Postgraduate Program in Functional Rehabilitation, Federal University of Santa Maria-UFSM, Av. Roraima nº 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, 97105-900, Brazil.ORCID http://orcid.org/0000-0002-9842-4930
Gustavo Orione PuntelDepartment of Physiotherapy and Rehabilitation, Postgraduate Program in Functional Rehabilitation, Federal University of Santa Maria-UFSM, Av. Roraima nº 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, 97105-900, Brazil.ORCID http://orcid.org/0000-0002-1641-9477
Antonio Marcos Vargas da SilvaDepartment of Physiotherapy and Rehabilitation, Postgraduate Program in Functional Rehabilitation, Federal University of Santa Maria-UFSM, Av. Roraima nº 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, 97105-900, Brazil.ORCID http://orcid.org/0000-0001-8127-6911
Luis Ulisses SignoriDepartment of Physiotherapy and Rehabilitation, Postgraduate Program in Functional Rehabilitation, Federal University of Santa Maria-UFSM, Av. Roraima nº 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, 97105-900, Brazil. l.signori@hotmail.com.ORCID http://orcid.org/0000-0001-7784-9940
Universidade Federal de Santa Maria · BRUniversidade Federal do Rio Grande do Sul · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVitamin C (ascorbic acid) seems to attenuate the overproduction of reactive species during and after exercises. Yet, no meta-analysis has summarized the magnitude of this effect. The objective of this study was to systematically review the effects of vitamin C supplementation on oxidative stress, inflammatory markers, damage, soreness, and the musculoskeletal functionality after a single bout of exercise.

methodsMajor electronic databases were searched, from inception to September 2019, for placebo-controlled randomized clinical trials (RCTs) that evaluated the effects of vitamin C supplementation on oxidative stress parameters, inflammation markers, muscle damage, muscle soreness, and muscle functionality after a single bout of exercise in healthy volunteers. Random-effects modelling was used to compare mean changes from pre- to postexercise in participants that were supplemented with vitamin C versus placebo. Data were reported as standard mean difference (SMD) and 95% confidence interval (CI).

resultsA total of 18 RCTs, accounting for 313 participants (62% males, median age = 24 years) were included. Vitamin C supplementation reduced lipid peroxidation immediately (SMD = - 0.488; 95% CI = - 0.888 to - 0.088), 1 h (SMD = - 0.521; 95% CI = - 0.911 to - 0.131) and between 1 and 2 h (SMD = - 0.449; 95% CI = - 0.772 to - 0.126) following exercise. Exercise induced interleukin-6 (IL-6) response was attenuated 2 h (SMD = - 0.764; 95% CI = - 1.279 to - 0.248) and between 1 and 2 h (SMD = - 0.447; 95% CI = - 0.828 to - 0.065) after exercise. No effects of vitamin C supplementation were found on creatine kinase (CK), C-reactive protein (CRP), cortisol levels, muscle soreness, and muscle strength.

conclusionVitamin C supplementation attenuates the oxidative stress (lipid peroxidation) and inflammatory response (IL-6) to a single bout of exercise. REGISTRATION: PROSPERO (CRD42018094222).

Indexed as

Ascorbic AcidMyalgiaAdultDietary SupplementsExerciseFemaleHumansInflammationMaleMuscle, SkeletalMuscle StrengthOxidative StressRandomized Controlled Trials as TopicYoung AdultAscorbic AcidAscorbic acidAthleteExerciseHealthy volunteersInflammationOxidative stress

Identifiers

PMID32162041
OpenAlexW3012176088

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.