Shorter constant work rate cycling tests as proxies for longer tests in highly trained cyclists

Journal article


du Plessis, Chantelle, Andrews, Mark, Mitchell, Lachlan J. G., Cochrane Wilkie, Jodie, King, Trish and Blazevich, Anthony J.. (2022). Shorter constant work rate cycling tests as proxies for longer tests in highly trained cyclists. PLoS ONE. 17, p. Article e0259034. https://doi.org/10.1371/journal.pone.0259034
Authorsdu Plessis, Chantelle, Andrews, Mark, Mitchell, Lachlan J. G., Cochrane Wilkie, Jodie, King, Trish and Blazevich, Anthony J.
Abstract

Severe-intensity constant work rate (CWR) cycling tests simulate the high-intensity competition environment and are useful for monitoring training progression and adaptation, yet impose significant physiological and psychological strain, require substantial recovery, and may disrupt athlete training or competition preparation. A brief, minimally fatiguing test providing comparable information is desirable. Purpose To determine whether physiological variables measured during, and functional decline in maximal power output immediately after, a 2-min CWR test can act as a proxy for 4-min test outcomes. Methods Physiological stress ( kinetics, heart rate, blood lactate concentrations ([La-]b)) was monitored and performance fatigability was estimated (as pre-to-post-CWR changes in 10-s sprint power) during 2- and 4-min CWR tests in 16 high-level cyclists ( ml∙kg-1∙min-1). The relationship between the 2- and 4-min CWR tests and the physiological variables that best relate to the performance fatigability were investigated. Results The 2-min CWR test evoked a smaller decline in sprint mechanical power (32% vs. 47%, p<0.001). Both the physiological variables (r = 0.66–0.96) and sprint mechanical power (r = 0.67–0.92) were independently and strongly correlated between 2- and 4-min tests. Differences in and [La-]b in both CWR tests were strongly associated with the decline in sprint mechanical power. Conclusion Strong correlations between 2- and 4-min severe-intensity CWR test outcomes indicated that the shorter test can be used as a proxy for the longer test. A shorter test may be more practical within the elite performance environment due to lower physiological stress and performance fatigability and should have less impact on subsequent training and competition preparation.

Year2022
JournalPLoS ONE
Journal citation17, p. Article e0259034
PublisherPublic Library of Science
ISSN1932-6203
Digital Object Identifier (DOI)https://doi.org/10.1371/journal.pone.0259034
PubMed ID35604957
Scopus EID2-s2.0-85130474143
PubMed Central IDPMC9126395
Open accessPublished as ‘gold’ (paid) open access
Page range1-19
Publisher's version
License
File Access Level
Open
Output statusPublished
Publication dates
Online23 May 2022
Publication process dates
Accepted23 Mar 2022
Deposited28 Nov 2023
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https://acuresearchbank.acu.edu.au/item/90044/shorter-constant-work-rate-cycling-tests-as-proxies-for-longer-tests-in-highly-trained-cyclists

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