Evidence map›Paper›PMID 18500971›Full record

ArticleJournal of the International Society of Sports Nutrition2006

Vitamin C and e supplementation effects in professional soccer players under regular training.

Claudio C Zoppi, Rodrigo Hohl, Fernando C Silva, Fernanda L Lazarim, Joaquim Mf Antunes Neto, Mirtes Stancanneli, Denise V Macedo

Abstract read
In one paragraph

Article in Journal of the International Society of Sports Nutrition, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

26 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Antioxidants for preventing and reducing muscle soreness after exercise.The Cochrane database of systematic reviews · 2017
    Pooled it
  4. Trial
  5. Review
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  7. Article
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  11. Effect of a Shock Micro-Cycle on Biochemical Markers in University Soccer Players.International journal of environmental research and public health · 2021
    Article
  12. Review
  13. Antioxidants and Exercise Performance: With a Focus on Vitamin E and C Supplementation.International journal of environmental research and public health · 2020
    Review
  14. Review
  15. Article
  16. Article
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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

7 authors.

Claudio C ZoppiLaboratório de Pesquisa do Exercício, Faculdade Social da Bahia, Salvador, Brazil. czoppi@fsba.edu.br.
Rodrigo Hohl
Fernando C Silva
Fernanda L Lazarim
Joaquim Mf Antunes Neto
Mirtes Stancanneli
Denise V Macedo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exercise training is known to induce an increase in free radical production potentially leading to enhanced muscle injury. Vitamins C and E are well known antioxidants that may prevent muscle cell damage. The purpose of this study was to determine the effects of these supplemental antioxidant vitamins on markers of oxidative stress, muscle damage and performance of elite soccer players. Ten male young soccer players were divided into two groups. Supplementation group (n = 5) received vitamins C and E supplementation daily during the pre-competitive season (S group), while the placebo group (PL group, n = 5) received a pill containing maltodextrin. Both groups performed the same training load during the three-month pre-season training period. Erythrocyte antioxidant enzymes glutathione reductase, catalase and plasma carbonyl derivatives did not show any significant variation among the experimental groups. Similarly, fitness level markers did not differ among the experimental groups. However, S group demonstrated lower lipid peroxidation and muscle damage levels (p < 0.05) compared to PL group at the final phase of pre-competitive season. In conclusion, our data demonstrated that vitamin C and E supplementation in soccer players may reduce lipid peroxidation and muscle damage during high intensity efforts, but did not enhance performance.

Identifiers

PMID18500971
PMCPMC2129167

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.