Evidence map›Paper›PMID 26716680›Full record

ArticlePloS one2015

Evaluation of a 7-Gene Genetic Profile for Athletic Endurance Phenotype in Ironman Championship Triathletes.

Rebecca Grealy, Jasper Herruer, Carl L E Smith, Doug Hiller, Luke J Haseler, Lyn R Griffiths

Abstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 5 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

34 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
  2. Association between theFrontiers in physiology · 2025
    Pooled it
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  6. Trial
  7. Trial
  8. Observational
  9. Review
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  12. Article
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  14. Article
  15. Genes · 2021
    Article
  16. Article
  17. Article
  18. Association of Genetic Variances inSports (Basel, Switzerland) · 2021
    Article
  19. Article
  20. Genetic test for the personalization of sport training.Acta bio-medica : Atenei Parmensis · 2020
    Review
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

6 authors.

Rebecca GrealySchool of Medical Science, Griffith University, Gold Coast, Australia.
Jasper HerruerSchool of Medical Science, Griffith University, Gold Coast, Australia.
Carl L E SmithSchool of Medical Science, Griffith University, Gold Coast, Australia.
Doug HillerNorth Hawaii Community Hospital, John A Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, United States of America.
Luke J HaselerHeart Foundation Research Centre, School of Physiotherapy and Exercise Science, Griffith University, Gold Coast, Australia.
Lyn R GriffithsGenomics Research Centre, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Polygenic profiling has been proposed for elite endurance performance, using an additive model determining the proportion of optimal alleles in endurance athletes. To investigate this model's utility for elite triathletes, we genotyped seven polymorphisms previously associated with an endurance polygenic profile (ACE Ins/Del, ACTN3 Arg577Ter, AMPD1 Gln12Ter, CKMM 1170bp/985+185bp, HFE His63Asp, GDF8 Lys153Arg and PPARGC1A Gly482Ser) in a cohort of 196 elite athletes who participated in the 2008 Kona Ironman championship triathlon. Mean performance time (PT) was not significantly different in individual marker analysis. Age, sex, and continent of origin had a significant influence on PT and were adjusted for. Only the AMPD1 endurance-optimal Gln allele was found to be significantly associated with an improvement in PT (model p = 5.79 x 10-17, AMPD1 genotype p = 0.01). Individual genotypes were combined into a total genotype score (TGS); TGS distribution ranged from 28.6 to 92.9, concordant with prior studies in endurance athletes (mean±SD: 60.75±12.95). TGS distribution was shifted toward higher TGS in the top 10% of athletes, though the mean TGS was not significantly different (p = 0.164) and not significantly associated with PT even when adjusted for age, sex, and origin. Receiver operating characteristic curve analysis determined that TGS alone could not significantly predict athlete finishing time with discriminating sensitivity and specificity for three outcomes (less than median PT, less than mean PT, or in the top 10%), though models with the age, sex, continent of origin, and either TGS or AMPD1 genotype could. These results suggest three things: that more sophisticated genetic models may be necessary to accurately predict athlete finishing time in endurance events; that non-genetic factors such as training are hugely influential and should be included in genetic analyses to prevent confounding; and that large collaborations may be necessary to obtain sufficient sample sizes for powerful and complex analyses of endurance performance.

Indexed as

AdultAllelesAthletesAthletic PerformanceFemaleGene FrequencyGenotypeHumansMaleMiddle AgedPhenotypePhysical EndurancePolymorphism, Genetic

Identifiers

PMID26716680
PMCPMC4696732

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Registered trials

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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.