Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Laboratory 20-km cycle time trial reproducibility.

G S Zavorsky1, J M Murias, J Gow

  • 1Department of Anesthesia, McGill University, Montreal, Canada. gerald.zavorsky@mcgill.a

International Journal of Sports Medicine
|April 25, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Improved Blood Suppression of Motion-Sensitized Driven Equilibrium in High-Resolution Whole-Brain Vessel Wall Imaging: Comparison of Contrast-Enhanced 3D T1-Weighted FSE with Motion-Sensitized Driven Equilibrium and Delay Alternating with Nutation for Tailored Excitation.

AJNR. American journal of neuroradiology·2022
Same author

Hypertriton Production in p-Pb Collisions at sqrt[s_{NN}]=5.02  TeV.

Physical review letters·2022
Same author

Polarization of Λ and Λ[over ¯] Hyperons along the Beam Direction in Pb-Pb Collisions at sqrt[s]_{NN}=5.02  TeV.

Physical review letters·2022
Same author

Measurement of the Groomed Jet Radius and Momentum Splitting Fraction in pp and Pb-Pb Collisions at sqrt[s_{NN}]=5.02  TeV.

Physical review letters·2022
Same author

Measurement of the Cross Sections of Ξ_{c}^{0} and Ξ_{c}^{+} Baryons and of the Branching-Fraction Ratio BR(Ξ_{c}^{0}→Ξ^{-}e^{+}ν_{e})/BR(Ξ_{c}^{0}→Ξ^{-}π^{+}) in pp Collisions at sqrt[s]=13  TeV.

Physical review letters·2022
Same author

Measurement of Prompt D^{0}, Λ_{c}^{+}, and Σ_{c}^{0,++}(2455) Production in Proton-Proton Collisions at sqrt[s]=13  TeV.

Physical review letters·2022

This study shows that a familiarization session improves the reliability of 20-km cycling time trial measurements. Elite cyclists exhibit greater consistency in performance metrics like power output and speed compared to recreational cyclists.

Area of Science:

  • Exercise Physiology
  • Sports Science
  • Cycling Performance Analysis

Background:

  • Laboratory-based cycling time trials are common for assessing performance.
  • Understanding the reproducibility of these tests is crucial for accurate performance evaluation.
  • Individual differences in training status may influence test-retest reliability.

Purpose of the Study:

  • To evaluate the reproducibility of 20-km cycling time trials.
  • To compare the reliability between well-trained and recreational cyclists.
  • To identify factors influencing measurement consistency in cycling performance tests.

Main Methods:

  • Eighteen cyclists (well-trained and recreational) completed three 20-km time trials on a Velotron ergometer over one month.
  • Key performance variables including average power output (PO), speed, and heart rate (HR) were recorded.

Related Experiment Videos

  • Coefficients of variation (CV) were calculated to assess trial-to-trial reliability.

    • Main Results:

    • Average PO, speed, and completion time were significantly lower in the first trial, indicating a learning effect.
    • The top eight performers showed much smaller CVs (e.g., 1.2% for PO) compared to the bottom ten (e.g., 4.8% for PO) between trials 2 and 3.
    • Heart rate, VO(2), and percentage of VO(2max) remained consistent across trials for all participants.

    Conclusions:

    • A familiarization session significantly enhances the reliability of cycling time trial measurements.
    • Well-trained cyclists demonstrate superior test-retest reliability in laboratory-based 20-km time trials.
    • Performance level is a key determinant of measurement consistency in cycling performance assessments.