The Time Course of Mixed Venous Blood Gas Composition following Exercise Onset

  • Richard Casaburi


Some of our most profound insights into respiratory control mechanisms during exercise have come from the examination of dynamic responses. In particular, the events during the first few seconds after exercise begins have been scrutinized. The consideration of ventilatory and gas exchange responses early in exercise began auspiciously almost 80 years ago with the publication of “The regulation of respiration and circulation during the initial stages of muscular work”1. Krogh and Lindhard measured both ventilation and oxygen uptake in the first few seconds of exercise and found that both increased with no measurable latency.


Exercise Transition Mixed Venous Oxygen Saturation Muscular Work Abrupt Fall Exercise Onset 
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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Richard Casaburi
    • 1
  1. 1.Division of Respiratory and Critical Care, Physiology and MedicineHarbor-UCLA Medical CenterTorranceUSA

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