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  • Are RCP and Critical Power Equivalent? The Issue of Mean Response Time Response (Letter)

    Author(s)
    Leo, Jeffrey A
    Sabapathy, Surendran
    Simmonds, Michael J
    Cross, Troy J
    Griffith University Author(s)
    Sabapathy, Surendran
    Cross, Troy J.
    Leo, Jeffrey
    Simmonds, Michael J.
    Year published
    2017
    Metadata
    Show full item record
    Abstract
    We thank Boone and Bourgois (1) for their interest in our recent article (4). Their comments are interesting and add value to the ongoing debate on whether the respiratory compensation point (RCP) is a valid surrogate for the critical power (CP). We agree that the estimation and subsequent adjustment of the mean response time (MRT), to account for the delay in the pulmonary O2 uptake kinetic response inherent to incremental exercise, may, to some extent, explain the poor measurement agreement commonly observed between the RCP and the CP. The relatively poor reproducibility and protocol dependency of the MRT (2), coupled with ...
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    We thank Boone and Bourgois (1) for their interest in our recent article (4). Their comments are interesting and add value to the ongoing debate on whether the respiratory compensation point (RCP) is a valid surrogate for the critical power (CP). We agree that the estimation and subsequent adjustment of the mean response time (MRT), to account for the delay in the pulmonary O2 uptake kinetic response inherent to incremental exercise, may, to some extent, explain the poor measurement agreement commonly observed between the RCP and the CP. The relatively poor reproducibility and protocol dependency of the MRT (2), coupled with the apparent nonlinear MRT dynamics for external work rates incurred above the gas-exchange threshold (GET) (3), are factors that may affect the accuracy/confidence of the MRT estimate obtained during incremental exercise.
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    Journal Title
    Medicine & Science in Sports & Exercise
    Volume
    49
    Issue
    12
    DOI
    https://doi.org/10.1249/MSS.0000000000001376
    Subject
    Sports science and exercise
    Medical physiology
    Science & Technology
    Life Sciences & Biomedicine
    Sport Sciences
    Respiratory Compensation
    Publication URI
    http://hdl.handle.net/10072/408149
    Collection
    • Journal articles

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