September 1, 1992Journal of Applied Physiology

Relationship between body and leg VO2 during maximal cycle ergometry

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Why the study?

Is the asymptotic behavior of whole body VO2 at maximal work rates explained by similar behavior of VO2 in the exercising legs in trained male cyclists?

Structured PICO

Is the asymptotic behavior of whole body VO2 at maximal work rates explained by similar behavior of VO2 in the exercising legs in trained male cyclists?

Population

7 trained male cyclists (maximal VO2, 64.7 +/- 2.7 ml O2.min-1.kg-1) demonstrating a reproducible VO2-WR asymptote during fatiguing incremental cycle ergometry

Intervention

Simultaneous measurements of body and leg VO2 at submaximal and maximal levels of effort breathing normoxic and hypoxic gases during cycle ergometry

Outcome

Differences between measured and extrapolated maximal VO2 for body and legsurrogate

The asymptotic behavior of whole body VO2 at maximal work rates is a direct reflection of the VO2 profile at the exercising legs.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Supports leg-driven VO2 plateau in trained cyclists; leaves open generalizability and clinical test interpretation.

Cite This Study

Knight et al. (1992) studied this question.

synapsesocial.com/papers/69dd51320644c7b49d40ce1e https://doi.org/10.1152/jappl.1992.73.3.1114

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