Evidence map›Paper›PMID 23717764›Full record

ArticleInternational journal of preventive medicine2013

The effect of vitamin C and e supplementation on muscle damage and oxidative stress in female athletes: a clinical trial.

Maryam Taghiyar, Leila Darvishi, Gholamrez Askari, Awat Feizi, Mitra Hariri, Nafiseh Shokri Mashhadi, Reza Ghiasvand

Open access · greenAbstract read
In one paragraph

Article in International journal of preventive medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 19% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Pooled it
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  3. Trial
  4. Trial
  5. Article
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  8. Review
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  13. Oxidative medicine and cellular longevity · 2019
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Frontiers in physiology · 2018
    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 at 1 institution in 1 country.

Maryam TaghiyarFood Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
Leila Darvishi
Gholamrez Askari
Awat Feizi
Mitra Hariri
Nafiseh Shokri Mashhadi
Reza Ghiasvand
Isfahan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe need for energy in strenuous exercises necessitates an increase in oxygen consumption and production of reactive oxygen species. It seems that supplementation of vitamins C and E reduces exercise-induced oxidative stress. Therefore, this study aims to investigate the effects of vitamin C and E supplementation on muscle damage and oxidative stress in female athletes.

methodsThe study was a four-week randomized, double-blind clinical trial, conducted on 64 trained female athletes recruited in the Isfahan sports club. They were randomly assigned to one of the following four groups: (a) vitamin C (250 mg/day), (b) vitamin E (400 IU), (c) vitamin C + vitamin E, and the control (placebo). Aspartate transaminase (AST), creatine kinase (CK), and lactate dehydrogenase (LDH) for assessing muscle damage, and malondialdehyde, were measured before and after the intervention.

resultsIn the between-groups comparison, only creatine kinase significantly changed at the end of the period (P = 0.03). However, in the intergroup comparison creatine kinase was significantly decreased in group 1 (P = 0.002). As for Aspartate aminotransferase, no significant difference was spotted in any of the comparisons. Lactate dehydrogenase was significantly decreased in group 2 (P = 0.02). Finally, this study revealed a significant decrease in oxidative stress markers in groups 1, 3, and 4 (P < 0.05).

conclusionsIt is induced from the results that vitamin C and E supplementation plays a role in reducing muscle damage markers of aerobic exercises.

Indexed as

female athletemuscle damageoxidative stressvitamin CVitamin E

Identifiers

PMID23717764
PMCPMC3665020
OpenAlexW1927406501

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.