Ratio of the volume of carbon dioxide produced when a substance is oxidised, to the volume of oxygen used. The oxidation of carbohydrate results in an RQ of 1.0; of fat, 0.7; and of protein, 0.8.
Ratio of the amount of carbon dioxide produced to the amount of oxygen consumed at cellular level.
The ratio of the volume of carbon dioxide exhaled to the amount of oxygen inhaled.
The ratio of the amount of carbon dioxide taken into the alveoli of the lungs from the blood to the amount of oxygen which the alveoli take from the air.
The ratio of carbon dioxide exhaled to oxygen consumed.
The ratio of the volume of carbon dioxide transferred from the blood into the alveoli to the volume of oxygen absorbed into the alveoli. The RQ is usually about 0.8 because more oxygen is taken up than carbon dioxide excreted.
The amount of energy derived from carbohydrate, rather than fat, metabolism.
The proportion between the consumption of oxygen and production of carbon dioxide, which can be affected by the way carbohydrate and fat are utilized as sources of energy.