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  • A thermodynamics-based mechanism for the slow component of oxygen uptake kinetics during high power exercise

    Author(s)
    O'Reilly, J.
    Simeoni, Ricardo
    Griffith University Author(s)
    Simeoni, Ricardo J.
    Year published
    2005
    Metadata
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    Abstract
    The profile of human oxygen consumption during high power exercise has captivated exercise physiologists for decades and the mechanism behind the slow component of this profile is still unclear [1-4]. The present study models this component from a thermodynamics perspective that considers the work associated with gas pressure, volume and temperature changes for the glucose-based equation of respiration. Model slow component curves closely match clinically measured curves [2,4,7] in shape and scale. Existing proposed mechanisms for the slow component are generally more qualitative or physiological in nature. Thus, the ...
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    The profile of human oxygen consumption during high power exercise has captivated exercise physiologists for decades and the mechanism behind the slow component of this profile is still unclear [1-4]. The present study models this component from a thermodynamics perspective that considers the work associated with gas pressure, volume and temperature changes for the glucose-based equation of respiration. Model slow component curves closely match clinically measured curves [2,4,7] in shape and scale. Existing proposed mechanisms for the slow component are generally more qualitative or physiological in nature. Thus, the presented model may represent a significant contributing mechanism towards the slow component.
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    Conference Title
    16th National Congress 2005 Australian Institute of Physics: Physics for the Nation
    Publisher URI
    http://aipcongress2005.anu.edu.au/
    Publication URI
    http://hdl.handle.net/10072/23417
    Collection
    • Conference outputs

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