Key result
Consumer fitness trackers accurately measure postoperative heart rate vs ECG with ~5% error.
Why the study?
Further validations of heart rate measurement accuracy by consumer-grade fitness trackers in hospitalized patients are essential but lacking to date.
Do consumer-grade fitness trackers accurately measure heart rate compared to electrocardiography in postoperative patients?
Population
201 patients after moderate to major surgery
Comparison
Heart rate measurements by 4 consumer-grade fitness trackers vs electrocardiography
Design
Prospective validation study
Authors
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Supports postoperative HR monitoring with fitness trackers; hypothesis-generating pending RCTs on outcomes and generalizability.
Observational (n=201)
Do consumer-grade fitness trackers accurately measure heart rate compared to electrocardiography in postoperative patients?
Effect estimate: mean absolute percentage error <5%
Consumer-grade fitness trackers provide accurate heart rate monitoring in hospitalized postoperative patients, with mean absolute error <5 beats per minute compared to ECG.
Helmer et al. (2022) conducted an observational in Postoperative patients (n=201). Consumer-grade fitness trackers (Apple Watch 7, Garmin Fenix 6 Pro, Withings ScanWatch, and Fitbit Sense) vs. Electrocardiography was evaluated on Accuracy of heart rate measurements (mean absolute percentage error <5%). Consumer-grade fitness trackers accurately measured heart rate in postoperative patients compared to electrocardiography, with a mean absolute percentage error of <5%.
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