This may start a vicious circle, in which cardiac output is reduced as oxygen requirements are increased.

In other words, a hibernating human would age approximately one year for every century of hibernation, and his nutritional and oxygen requirements were reduced proportionately.

They have different lethal temperatures, dissolved oxygen requirements, and spawning needs that are based on their activity levels and behaviors.

They are aerobic or microaerophilic in their oxygen requirements.

It has been shown that growing cells and tissues have very individual oxygen requirements.

It also has no oxygen requirement and is thermophilic, which reduces cooling cost.

Treatment involves measures to decrease the oxygen requirement of the heart and efforts to increase blood flow.

Negative chronotropy can be beneficial when treating a variety of disease processes because lower heart rates represent lower cardiac oxygen requirements.

The slow rate might even be protective, reducing her heart's oxygen requirements.

During this period of dormancy its metabolic activity diminishes by up to 85% and its oxygen requirement is much reduced.