3. Physiology
        3.13. Respiratory
            3.13.5. Special circumstances
                3.13.5.1. Exercise
3.13.5.1.1. Oxygen consumption and ventilation

Oxygen consumption and ventilation

Liner relationship below Owles point

Relationship between minute volume and oxygen consumption is approximately linear
* Up to about oxygen consumption of 2 L/min in an untrained person.

Slope of the linear part
= ventilation equivalent for oxygen
--> About minute volume of 20-30 L/min per 1 L/min of oxygen consumption
--> Doesn't alter with training

NB:

Owles point

##See diagram 20050306(03) - "Oxygen consumtion and ventilation"

Limitation to exercise

NB:

Maximal breathing capacity (MBC)

(aka maximal voluntary ventilation)

--> maximal minute volume of ventilation that a subject can maintain for 15 seconds.

Significance

Maximal oxygen uptake

--> about 3 L/min for young fit adult male



Table of contents  | Bibliography  | Index