An exercise state in which the body is able to supply the oxygen needed for exercise and oxygen supply meets oxygen demand.
After the first 3-4 minutes of exercise, oxygen uptake has reached an adequate level to meet the oxygen demand of the tissue; heart rate, cardiac output and pulmonary ventilation have attained fairly constant levels.
A condition in which the energy provided during exercise is balanced with the energy required to perform that exercise, and factors responsible for the provision of this energy reach elevated levels of equilibrium.
In biochemistry the situation that exists when the rate of elimination of a drug from the body equals the rate of intake of the drug.
A dynamic equilibrium in which construction and destruction are balanced. In physiology, the condition in which energy inputs equal expended energy (e.g., in which nutrition equals metabolism).
A stable physiological milieu in which the energy requisites are fulfilled by the energy provisions.