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Kriterievaliditet för Cooper 12 min run test och Ekblom-Bak test för uthållighetsidrottare
Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Section of Sports Medicine.
Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Section of Sports Medicine.
2024 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Criterion validity for Cooper 12 min run test and Ekblom-Bak test for endurance athletes (English)
Abstract [sv]

Bakgrund: Aerob kapacitet är en viktig fysiologisk egenskap och kan mätas genom maximala- och submaximala tester. Ekblom-Bak testet (EB-testet) är ett submaximalt cykeltest medan Cooper 12 min test (CRT-12) är ett maximalt test, men dem båda uppskattar maximal syreupptagningsförmåga (VO2max) genom matematiska formler. Det finns fördelar med estimerade tester i idrottsvärlden, men tillförlitligheten varierar. Syftet var att undersöka validiteten av EB-testet och CRT-12 genom kriterievaliditet för ett urval av uthållighetsidrottare. Vidare syftar studien till att undersöka om det sker en eventuell över- eller underestimering av EB-testresultat och av CRT-12 testresultat.

Metod: De rekryterade studiedeltagarna var åtta uthållighetsidrottare inom olika uthållighetsidrotter. Studien bestod av två testtillfällen. Vid första testtillfället genomfördes EB-test och ett VO2max test. Under andra testtillfället genomförde CRT-12. Uppmätt relativt syreupptag ställdes mot estimerade värden genom Bland-Altman analys och Interklass korrelation koefficient (ICC).

Resultat: EB-testet hade måttlig överensstämmelse med ICC värde av 0,57. CRT-12 hade god överensstämmelse med ICC värde av 0,75. Både mätmetoderna överestimerade resultat vid jämförelse mot kriteriemetoden. 

Konklusion: För studiens urval ansågs CRT-12 ge mer tillförlitliga resultat än EB-testet. För att kunna möjliggöra generalisering av resultatet behövs vidare forskning med en större urvalsgrupp av studiedeltagare.

Abstract [en]

Background: Aerobic capacity is a physiological component which can be measured through maximal- and submaximal tests. The Ekblom-Bak test (EB-test) is a submaximal cycle test whereas Cooper 12 min run test (CRT-12) is a maximal test, but they both estimate maximal oxygen consumption (VO2max) through mathematical formulas. There are advantages of estimated testing methods in the sports world, but reliability varies. The study aims to investigate the validity of the EB-test and the CRT-12 through criterion validity for a sample of endurance athletes. Further the study aims to investigate if there occurs an over- or under estimation of the EB-test results and of the CRT-12 results.

Method: The recruited participants where eight endurance athletes from various sports. The study consisted of two test occasions. The first occasion consisted of the EB-test and the VO2max test. The second occasion consisted of the CRT-12. Measured relative oxygen consumption was opposed to the estimated values through a Bland-Altman plot and a interclass corelation coefficient (ICC).

Results: The Ekblom-bak test was seen to have moderate agreement with an ICC of 0,57. The cooper 12 min run test was seen to have good agreement with an ICC of 0,75. Both tests overestimated the results when compared to the criterion method.

Conclusion: For the population of the study, it was seen that CRT-12 is more reliable than the EB-test. To be able to generalise the results there is a need for further research with a larger study population. 

Place, publisher, year, edition, pages
2024. , p. 45
Keywords [en]
Aerobic capacity, indirect calorimetry, validity and oxygen uptake measurement
Keywords [sv]
Aerob kapacitet, indirekt kalorimetri, validitet och syreupptagningsmätning
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:umu:diva-227048OAI: oai:DiVA.org:umu-227048DiVA, id: diva2:1878317
Subject / course
Examensarbete för kandidatexamen i idrottsmedicin
Educational program
Exercise Physiologist Programme - Sports Medicine, Performance and Health
Supervisors
Examiners
Available from: 2024-06-28 Created: 2024-06-26 Last updated: 2025-02-11Bibliographically approved

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