Evidence map›Paper›PMID 24990089›Full record

ArticleEuropean journal of applied physiology2014

Acute hypoxic exercise does not alter post-exercise iron metabolism in moderately trained endurance athletes.

Andrew D Govus, Chris R Abbiss, Laura A Garvican-Lewis, Dorine W Swinkels, Coby M Laarakkers, Christopher J Gore, Peter Peeling

Abstract read
PubMed Publisher
In one paragraph

Article in European journal of applied physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
1.6field-weighted citation impact, top 15% 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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. The Effect of Vitamin DInternational journal of environmental research and public health · 2020
    Trial
  6. Article
  7. Article
  8. Iron Status and Physical Performance in Athletes.Life (Basel, Switzerland) · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. 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

7 authors at 5 institutions in 2 countries.

Andrew D GovusCentre for Exercise and Sport Science Research, School of Exercise and Health Science, Edith Cowan University, Joondalup, WA, Australia, a.govus@ecu.edu.au.
Chris R Abbiss
Laura A Garvican-Lewis
Dorine W Swinkels
Coby M Laarakkers
Christopher J Gore
Peter Peeling
Edith Cowan University · AURadboud University Medical Center · NLAustralian Sports Commission · AUUniversity of Canberra · AUUniversity of Western Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study measured the influence of acute hypoxic exercise on Interleukin-6 (IL-6), hepcidin, and iron biomarkers in athletes.

methodsIn a repeated measures design, 13 moderately trained endurance athletes performed 5 × 4 min intervals at 90 % of their peak oxygen consumption velocity (vVO2peak) in both normoxic [NORM, fraction of inspired oxygen (F IO2) = 0.2093, 15.3 ± 1.7 km h(-1)] and simulated hypoxic (HYP, F IO2 = 0.1450, 13.2 ± 1.5 km h(-1)) conditions. Venous blood samples were obtained pre-, post-, and 3 h post-exercise, and analysed for serum hepcidin, IL-6, ferritin, iron, soluble transferrin receptor (sTfR), and transferrin saturation.

resultsPeak heart rate was significantly lower in HYP compared with NORM (p = 0.01); however, the rating of perceived exertion was similar between trials (p = 0.24). Ferritin (p = 0.02), transferrin (p = 0.03), and IL-6 (p = 0.01) significantly increased immediately post-exercise in both conditions, but returned to baseline 3 h later. Hepcidin levels significantly increased in both conditions 3 h post-exercise (p = 0.05), with no significant differences between trials. A significant treatment effect was observed between trials for sTfR (p = 0.01), but not iron and transferrin saturation.

conclusionAcute exercise in hypoxia did not influence post-exercise IL-6 production, hepcidin activity or iron metabolism compared with exercise at the same relative intensity in normoxia. Hence, acute exercise performed at the same relative intensity in hypoxia poses no further risk to an athlete's iron status, as compared with exercise in normoxia.

Indexed as

ExerciseOxygen ConsumptionAdultAthletesFemaleHepcidinsHumansHypoxiaInterleukin-6IronMaleHepcidinsInterleukin-6Iron

Identifiers

PMID24990089
OpenAlexW2107732621

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.