How is heart rate defined?

Heart rate is defined as the number of times the heart beats per minute. This measurement is crucial in exercise science as it provides insight into a person's cardiovascular health and fitness level. During physical activity, heart rate increases to supply more oxygen-rich blood to the muscles, indicating the body’s response to exercise intensity. Monitoring heart rate can help individuals gauge their effort levels, determine appropriate training intensities, and assess overall cardiac health.

Understanding heart rate is essential for designing effective exercise programs, as it directly relates to the body’s performance and efficiency at various training levels. It is also vital for ensuring that individuals are not overexerting themselves during physical activity.