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Related Experiment Videos

A new valid and reliable windtrainer VO2max protocol.

W M Dalziel1, S M Hannan, M C Watts

  • 1School of Human Movement Studies, The University of Queensland, St. Lucia, Queensland, Australia.

The Journal of Sports Medicine and Physical Fitness
|July 21, 2007
PubMed
Summary
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The new indoor cycling simulator protocol accurately measures maximal oxygen uptake (VO2max) and is reliable for cyclists. This method offers a valid alternative to traditional laboratory tests.

Area of Science:

  • Sports Science
  • Exercise Physiology
  • Cardiorespiratory Fitness

Background:

  • Maximal oxygen uptake (VO2max) assessment is crucial for evaluating athletic performance.
  • Traditional VO2max cycling protocols often require specialized laboratory equipment and unfamiliar cycling positions.
  • A novel speed-ramped protocol using an indoor cycling simulator (Cateye Windtrainer WT) allows cyclists to use their own bikes.

Purpose of the Study:

  • To validate the novel WT speed-ramped protocol against a traditional (TD) resistance-ramped ergometer protocol.
  • To determine the retest reliability of the WT protocol for VO2max assessment.

Main Methods:

  • Twenty experienced cyclists performed familiarization and testing sessions.
  • Participants completed two VO2max tests using the WT protocol and two using the TD protocol.

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  • Randomized order of testing was employed to minimize bias.

    • Main Results:

    • Minimal differences were observed in VO2max values between the WT (64.1±7.1 mL/kg/min) and TD (63.3±7.4 mL/kg/min) protocols.
    • High interclass correlation (r=0.94) indicated strong agreement between protocols.
    • The WT protocol demonstrated good retest reliability with an intra-test difference of 1.5% and correlation (r=0.81).

    Conclusions:

    • The WT speed-ramped protocol is a valid and reliable method for assessing VO2max in cyclists.
    • This protocol offers a practical and accessible alternative to traditional laboratory-based VO2max testing.
    • Cyclists can utilize their own bicycles, potentially improving comfort and specificity during testing.