Which heart rate measuring method offers more accurate readings during exercise?

A heart rate monitor offers more accurate readings during exercise because it utilizes electronic sensors that continuously measure the heart's electrical activity, providing real-time data. This method minimizes human error often associated with manual measurements or pulse checks, especially during high-intensity physical activity when heart rates can fluctuate significantly.

Additionally, heart rate monitors can accurately track changes in heart rate during different intensities of exercise, allowing for more precise assessments of cardiovascular response and effort. Unlike manual measurements or counting heartbeats for a short duration (like 15 seconds), which can be influenced by timing errors or distractions, a heart rate monitor provides a consistent and reliable measure throughout the activity. This reliability is crucial for athletes and individuals aiming to optimize their training sessions or monitor their cardiovascular fitness.