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The reliability and validity of a four-minute running time-trial in assessing VO2max and performance
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. (Swedish Winter Sports Research Centre)ORCID iD: 0000-0002-1273-6061
2017 (English)In: Frontiers in Physiology, ISSN 1664-042X, E-ISSN 1664-042X, Vol. 8, no MAY, 1-9 p., 270Article in journal (Refereed) Published
Abstract [en]

Introduction: Traditional graded-exercise tests to volitional exhaustion (GXTs) are limited by the need to establish starting workloads, stage durations, and step increments. Short-duration time-trials (TTs) may be easier to implement and more ecologically valid in terms of real-world athletic events. The purpose of the current study was to assess the reliability and validity of maximal oxygen uptake (VO2max) and performance measured during a traditional GXT (STEP) and a four-minute running time-trial (RunTT). Methods: Ten recreational runners (age: 32 ± 7 years; body mass: 69 ± 10 kg) completed five STEP tests with a verification phase (VER) and five self-paced RunTTs on a treadmill. The order of the STEP/VER and RunTT trials was alternated and counter-balanced. Performance was measured as time to exhaustion (TTE) for STEP and VER and distance covered for RunTT. Results: The coefficient of variation (CV) for VO2max was similar between STEP, VER, and RunTT (1.9 ± 1.0, 2.2 ± 1.1, and 1.8 ± 0.8%, respectively), but varied for performance between the three types of test (4.5 ± 1.9, 9.7 ± 3.5, and 1.8 ± 0.7% for STEP, VER, and RunTT, respectively). Bland-Altman limits of agreement (bias ± 95%) showed VO2max to be 1.6 ± 3.6 mL·kg-1·min-1 higher for STEP vs. RunTT. Peak HR was also significantly higher during STEP compared with RunTT (P = 0.019). Conclusion: A four-minute running time-trial appears to provide more reliable performance data in comparison to an incremental test to exhaustion, but may underestimate VO2max.

Place, publisher, year, edition, pages
2017. Vol. 8, no MAY, 1-9 p., 270
Keyword [en]
graded-exercise test, maximal oxygen uptake, reproducibility, testing, verification phase
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-30893DOI: 10.3389/fphys.2017.00270ScopusID: 2-s2.0-85019708441OAI: oai:DiVA.org:miun-30893DiVA: diva2:1111170
Available from: 2017-06-17 Created: 2017-06-17 Last updated: 2017-06-26Bibliographically approved

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Publisher's full textScopushttp://journal.frontiersin.org/article/10.3389/fphys.2017.00270/full

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • vancouver
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More styles
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More languages
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