TY  - JOUR
A1  - Helmer, Philipp
A1  - Hottenrott, Sebastian
A1  - Rodemers, Philipp
A1  - Leppich, Robert
A1  - Helwich, Maja
A1  - Pryss, Rüdiger
A1  - Kranke, Peter
A1  - Meybohm, Patrick
A1  - Winkler, Bernd E.
A1  - Sammeth, Michael
T1  - Accuracy and Systematic Biases of Heart Rate Measurements by Consumer-Grade Fitness Trackers in Postoperative Patients: Prospective Clinical Trial
JF  - Journal of Medical Internet Research
N2  - 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.
KW  - Withings ScanWatch
KW  - health tracker
KW  - smartwatch
KW  - internet of things
KW  - personalized medicine
KW  - photoplethysmography
KW  - wearable
KW  - Garmin Fenix 6 Pro
KW  - Apple Watch 7
KW  - Fitbit Sense
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-299679
VL  - 24
IS  - 12
ER  -