What is the pulse rate a measure of?

The pulse rate is a measure of the number of heartbeats in a given time period, typically expressed as beats per minute. Each pulse corresponds to a contraction of the heart that sends a wave of blood through the arteries, which is why we can feel the pulse in various parts of the body, such as the wrist or neck.

Monitoring pulse rate is important because it gives insight into heart health and fitness levels. A higher pulse rate can indicate physical activity or stress, while a lower resting pulse rate often suggests a higher level of cardiovascular fitness. This concept is critical in both health assessments and physical training.

Understanding this measure is essential for recognizing how the heart functions in relation to the body's demands, making it a fundamental aspect of biology related to the cardiovascular system.