Oxygen level in the blood to indicate changes due to heart or lung, oxygen use by your body, or altitude
Number of heart pulses per minute to indicate overall fitness or exertion levels at any time
Strength of blood flow to the finger to indicate changes in blood circulation.
Masimo pulse oximeters are the leading brand in hospitals because of Signal Extraction Technology (SET), which provides accurate measurements when other hospital-grade pulse oximeters fail—during movement and low blood flow.
Performance Index of Oxygen Saturation During Movement and Low Blood Flow
Performance Index of Pulse Rate During Movement and Low Blood Flow