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Exercise tolerance during VO2 max testing is a multifactorial psychobiological phenomenon

McNaughton, Lars R.; Midgley, Adrian W.; Earle, Keith; McNaugton, L. R.; Siegler, Jason C.; Clough, Peter; Earle, Fiona


Lars R. McNaughton

Adrian W. Midgley

Keith Earle

L. R. McNaugton

Jason C. Siegler

Peter Clough


© 2017 Informa UK Limited, trading as Taylor & Francis Group. Fifty-nine men completed a VO 2max test and a questionnaire to establish reasons for test termination, perceived exercise reserve (difference between actual test duration and the duration the individual perceived could have been achieved if continued until physical limitation), and perception of verbal encouragement. Participants gave between 1 and 11 factors as reasons for test termination, including leg fatigue, various perceptions of physical discomfort, safety concerns, and achievement of spontaneously set goals. The two most common main reasons were leg fatigue and breathing discomfort, which were predicted by pre-to-post test changes in pulmonary function (p = 0.038) and explosive leg strength (p = 0.042; R 2  = 0.40). Median (interquartile range) perceived exercise reserve, was 45 (50) s. Two-thirds of participants viewed verbal encouragement positively, whereas one-third had a neutral or negative perception. This study highlights the complexity of exercise tolerance during VO 2max testing and more research should explore these novel findings.


McNaughton, L. R., Midgley, A. W., Earle, K., McNaugton, L. R., Siegler, J. C., Clough, P., & Earle, F. (2017). Exercise tolerance during VO2 max testing is a multifactorial psychobiological phenomenon. Research in Sports Medicine, 25(4), 480-494.

Journal Article Type Article
Acceptance Date Dec 23, 2016
Online Publication Date Aug 21, 2017
Publication Date Aug 21, 2017
Deposit Date Oct 6, 2017
Publicly Available Date Feb 22, 2019
Journal Research in sports medicine
Print ISSN 1543-8627
Electronic ISSN 1543-8635
Publisher Routledge
Peer Reviewed Peer Reviewed
Volume 25
Issue 4
Pages 480-494
Keywords Effort; Fatigue; Goal setting; Maximal oxygen uptake; Verbal encouragement
Public URL
Publisher URL
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Additional Information Peer Review Statement: The publishing and review policy for this title is described in its Aims & Scope.; Aim & Scope:


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Copyright Statement
This is an Accepted Manuscript of an article published by Taylor & Francis in Research in sports medicine on 21/08/2017, available online:

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