Chemical parameters |
---|

D_{L}CO | Lung CO diffusion capacity | mL CO/minute-Torr | 30 |

D_{M}CO | Muscle CO diffusion capacity | mL CO/minute-Torr | 1.75 |

D_{T}O_{2} | Within tissue diffusion coefficient for O_{2} | mL/minute-Torr | 0.00060 |

D_{T}CO | Within tissue diffusion coefficient for O_{2} | mL/minute-Torr | 0.00045 |

Hb | Blood Hb concentration | g/mL | 0.14 |

Hb_{F} | Fetal blood Hb concentration | g/mL | 0.155 |

M_{Hb} | Haldane coefficient for Hb | unitless | 218 |

M_{Mb} | Haldane coefficient for Mb | unitless | 36 |

n | Hill equation exponent | unitless | variable^{a} |

O_{2}Hb_{Max} | O_{2} capacity of Hb | mL O_{2}/g Hb | 1.381 |

P_{B} | Barometric pressure | Torr | 760 |

P_{A}O_{2} | Partial pressure of O_{2} in arterial blood | Torr | 100 |

P_{M}O_{2} | Partial pressure of O_{2} in muscle | Torr | 20 |

P_{50}Hb | Partial pressure at 50% Hb saturation | Torr | variable^{a} |

P_{50}Mb | Partial pressure at 50% Mb saturation | Torr | 2.32 |

MRO_{2 B} | Whole body O_{2} consumption | mL/minute/g | 0.0032 |

MRO_{2 M} | Muscle O_{2} consumption | mL/minute/g | 0.021–0.03 |

SO_{2} | Solubility of O_{2} in plasma | mL/Torr | 3.14·10^{−5} |

SCO | Solubility of CO in plasma | mL/Torr | 2.35·10^{−5} |

VO_{2} | Total body O_{2} consumption | mL/minute | 225 |

VCO | Endogenous CO production | ml/minute | 0.007 |

Volumes |
---|

V_{M} | Volume of muscle | L | 29.1 |

V_{M1}F | Volume of muscle subcompartment 1 | L | 0.4·V_{M} |

V_{M2}F | Volume of muscle subcompartment 1 | L | 0.6·V_{M} |

V_{OT} | Volume of other tissue | L | 9.6 |

Flows |
---|

Q_{C} | Cardiac output | mL/minute | 5,800 |

Q_{M}f | Blood flow fraction to muscles | unitless | 0.40 |

Q_{OT}f | Blood flow fraction to other tissue | unitless | 0.25 |

V_{A} | Alveolar ventilation rate | mL/minute | 5,500 |