App aura tracker8/10/2023 In addition to the single score you get for RHR or HRV, Oura also provides a graph of your data throughout the night. Oura’s Nighttime RHR and HRV Graphs Show Very High Agreement with ECG RELATED: While both metrics vary by individual, find an analysis of Oura members’ average HRV here and average resting heart rates here.Īnd here’s what those results look like in the raw data: It ranges from 0 to 1 where 0 means there’s no correlation while 1 means the two variables are completely in sync.īecause both of these r² are very close to 1, it means that the values in the Oura app are at the top of the accuracy range and correspond nearly perfectly with ECG values, the gold standard for measuring heart rate. If you’re not familiar with r squared (r²), it is a commonly used way to assess how well two values correspond. When comparing Oura’s average nighttime RHR and HRV to a medical-grade ECG device, the results showed a near-perfect correlation for RHR (r² = 0.996) and extremely high squared correlation for HRV (r² = 0.980). Oura’s Average Nighttime Values Correspond Near-Perfect with ECG A highly accurate means of assessing body signals and long-term health behavior. A valid tool for measuring average nighttime resting heart rate (RHR) & variability (HRV).In a study of 49 healthy subjects, Oura Ring was shown to be: Learn more about exploring your long-term trends in the Oura App. That’s why accuracy in the long term becomes meaningful.” What’s meaningful is that Oura lets you see cause and effect: you start exercising and your HR drops by 5 bpm, or you get sick and your HRV drops by half and your HR jumps by 10 bpm. “This level of accuracy opens up new possibilities for understanding what state your body is in.”ĭespite the capability to track even the smallest changes, Kinnunen emphasizes that it’s the big picture that counts: “It’s not enough to know that your heart rate is, say, 52 bpm with zero-point-something accuracy. “Think about it for a second: we compared a 4-gram smart ring with a medical grade ECG device and saw how well it holds up,” says Hannu Kinnunen, lead study author and Oura’s Chief Scientist at the time. The Oura Ring performed near-perfect for resting heart rate (r² = 0.996) and extremely high for heart rate variability (r² = 0.980) when compared to a medical-grade ECG device. The researchers found “very high agreement” between the Oura Ring and the gold-standard, ECG measurement. In this 2020 study, which involved 49 healthy adult subjects, researchers sought to validate the accuracy of the Oura Ring in measuring resting heart rate (HR) and heart rate variability (HRV), both of which are essential metrics for measuring recovery and overall health. How accurately does the Oura Ring measure your heart rate and HRV?
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