Where is a heart rate monitor typically worn?

A heart rate monitor is typically worn around the chest or on the index finger because these locations allow for accurate measurement of heart rate based on the physiological changes that occur with each heartbeat.

When placed around the chest, a heart rate monitor often uses electrodes that detect the electrical signals generated by the heart. This method is highly reliable and commonly used by athletes during training because it provides continuous, real-time heart rate data.

Similarly, devices that are worn on the index finger (such as pulse oximeters) utilize infrared light to gauge blood flow and can provide a heart rate reading as well. This is convenient for quick checks and for individuals who may prefer a non-invasive option that doesn't require straps or bands.

Other options like wearing a heart rate monitor on the wrist or the ankle are less common. Wrist monitors, while available, may not be as accurate due to movement and other variables affecting sensor readings. The neck area would also not be practical for heart rate monitoring due to anatomical limitations and lack of appropriate sensors.