Table of Contents
Definition of Respiration Rate
The number of respiratory cycles a person completes in one minute. A typical healthy adult has a rate of 15 to 20 per minute, measured by counting each inhalation or each exhalation (a respiratory cycle is one of each).
Normally is lower at rest and during sleep, and accelerates as well as intensifies with physical activity and exercise.
The brainstem regulates the respiration rate, in intimate coordination with other vital functions such as HEART RATEand BLOOD PRESSURE. The respiration rate remains at roughly a ratio of 1 to 4 with the heart rate (one breath for every four contractions of the HEART).Page last reviewed: