Ultra-short-term HRV analysis using the Bora Band PPG device demonstrated valid agreement with reference ECG for 16 of 48 HRV features, retaining very strong correlations and statistical equivalence.
Observational (n=5)
Does ultra-short-term and short-term HRV analysis using a PPG wearable device agree with reference ECG in healthy subjects?
The Bora Band PPG wearable device provides valid and reliable measurement of specific HRV features in short and ultra-short duration recordings compared to reference ECG.
Continuous measurement of heart rate variability (HRV) in the short and ultra-short-term using wearable devices allows monitoring of physiological status and prevention of diseases. This study aims to evaluate the agreement of HRV features between a commercial device (Bora Band, Biosency) measuring photoplethysmography (PPG) and reference electrocardiography (ECG) and to assess the validity of ultra-short-term HRV as a surrogate for short-term HRV features. PPG and ECG recordings were acquired from 5 healthy subjects over 18 nights in total. HRV features include time-domain, frequency-domain, nonlinear, and visibility graph features and are extracted from 5 min 30 s and 1 min 30 s duration PPG recordings. The extracted features are compared with reference features of 5 min 30 s duration ECG recordings using repeated-measures correlation, Bland-Altman plots with 95% limits of agreements, Cliff's delta, and an equivalence test. Results showed agreement between PPG recordings and ECG reference recordings for 37 out of 48 HRV features in short-term durations. Sixteen of the forty-eight HRV features were valid and retained very strong correlations, negligible to small bias, with statistical equivalence in the ultra-short recordings (1 min 30 s). The current study concludes that the Bora Band provides valid and reliable measurement of HRV features in short and ultra-short duration recordings.
Taoum et al. (Thu,) conducted a observational in Healthy (n=5). Photoplethysmography (PPG) using Bora Band vs. Reference electrocardiography (ECG) was evaluated on Agreement of HRV features between PPG and reference ECG. Ultra-short-term HRV analysis using the Bora Band PPG device demonstrated valid agreement with reference ECG for 16 of 48 HRV features, retaining very strong correlations and statistical equivalence.