Evidence map›Paper›PMID 25260244›Full record

ArticleEuropean journal of applied physiology2015

Validity and reliability of critical power field testing.

B Karsten, S A Jobson, J Hopker, L Stevens, C Beedie

Abstract readValidation Study
PubMed Publisher
In one paragraph

Article in European journal of applied physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–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

24 citing papers in PubMed.

  1. Trial
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  5. Observational
  6. Article
  7. Review
  8. Article
  9. Article
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  11. Article
  12. Modelling human endurance: power laws vs critical power.European journal of applied physiology · 2024
    Article
  13. A critical review of critical power.European journal of applied physiology · 2022
    Review
  14. Using V̇oJournal of applied physiology (Bethesda, Md. : 1985) · 2022
    Article
  15. Determination of Critical Power Using Different Possible Approaches among Endurance Athletes: A Review.International journal of environmental research and public health · 2022
    Review
  16. Review
  17. Steady-stateEuropean journal of applied physiology · 2021
    Article
  18. Article
  19. Article
  20. 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

5 authors.

B KarstenDepartment of Life and Sport Science, University of Greenwich, Kent, ME4 4TB, UK, kb20@gre.ac.uk.
S A Jobson
J Hopker
L Stevens
C Beedie

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo test the validity and reliability of field critical power (CP).

methodLaboratory CP tests comprised three exhaustive trials at intensities of 80, 100 and 105 % maximal aerobic power and CP results were compared with those determined from the field. Experiment 1: cyclists performed three CP field tests which comprised maximal efforts of 12, 7 and 3 min with a 30 min recovery between efforts. Experiment 2: cyclists performed 3 × 3, 3 × 7 and 3 × 12 min individual maximal efforts in a randomised order in the field. Experiment 3: the highest 3, 7 and 12 min power outputs were extracted from field training and racing data.

resultsStandard error of the estimate of CP was 4.5, 5.8 and 5.2 % for experiments 1-3, respectively. Limits of agreement for CP were -26 to 29, 26 to 53 and -34 to 44 W for experiments 1-3, respectively. Mean coefficient of variation in field CP was 2.4, 6.5 and 3.5 % for experiments 1-3, respectively. Intraclass correlation coefficients of the three repeated trials for CP were 0.99, 0.96 and 0.99 for experiments 1-3, respectively.

conclusionsResults suggest field-testing using the different protocols from this research study, produce both valid and reliable CP values.

Indexed as

Exercise ToleranceAdultData Interpretation, StatisticalExercise TestHumansMaleReproducibility of Results

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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.