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Some smartwatches can flag an irregular rhythm, but readings during a run or workout seem more likely to be noisy. If a watch reports a possible atrial fibrillation episode while someone is exercising, how should that alert be interpreted?
I’m curious about the limits of wrist-based rhythm monitoring during movement, and whether exercise-related alerts are treated differently from readings taken while resting. What information should someone bring to a clinician rather than relying on the watch alone?
