Refine
Has Fulltext
- yes (8)
Is part of the Bibliography
- yes (8)
Document Type
- Journal article (8)
Language
- English (8)
Keywords
- ARDS (acute respiratory distress syndrome) (1)
- Apple Watch 7 (1)
- Bland–Altman (1)
- COVID-19 (1)
- ClearSight\(^®\) (1)
- Fisher Z-score transformation (1)
- Fitbit Sense (1)
- Garmin Fenix 6 Pro (1)
- Germany (1)
- PBM (1)
Institute
Sonstige beteiligte Institutionen
Background: Over the recent years, technological advances of wrist-worn fitness trackers heralded a new era in the continuous monitoring of vital signs. So far, these devices have primarily been used for sports.
Objective: However, for using these technologies in health care, further validations of the measurement accuracy in hospitalized patients are essential but lacking to date.
Methods: We conducted a prospective validation study with 201 patients after moderate to major surgery in a controlled setting to benchmark the accuracy of heart rate measurements in 4 consumer-grade fitness trackers (Apple Watch 7, Garmin Fenix 6 Pro, Withings ScanWatch, and Fitbit Sense) against the clinical gold standard (electrocardiography).
Results: All devices exhibited high correlation (r≥0.95; P<.001) and concordance (rc≥0.94) coefficients, with a relative error as low as mean absolute percentage error <5% based on 1630 valid measurements. We identified confounders significantly biasing the measurement accuracy, although not at clinically relevant levels (mean absolute error<5 beats per minute).
Conclusions: Consumer-grade fitness trackers appear promising in hospitalized patients for monitoring heart rate.