Key result
Smartwatch PPG time-domain features like HR and RMSSD did not differ significantly from ECG during activities, whereas pnn50, LF, and HF differed significantly.
Why the study?
Smartwatch photoplethysmography is used to monitor heart health but remains susceptible to motion artifacts and noise, warranting evaluation against medical-grade devices during various activities.
Does smartwatch photoplethysmography accurately measure heart rate features compared to medical-grade ECG and PPG devices in healthy students during different activities?
Observational (n=32)
Does smartwatch photoplethysmography accurately measure heart rate features compared to medical-grade ECG and PPG devices in healthy students during different activities?
Smartwatch PPG provides accurate time-domain heart rate measurements comparable to medical-grade ECG during various activities, reinforcing its potential as an alternative health monitoring device.
Smartwatch PPG may inaccurately capture select HRV features during activity; leaves open clinical reliability pending larger validation studies.
Nowadays, photoplethysmography (PPG) sensor integrated into smartwatches monitors heart health. Despite its convenience, PPG is susceptible to motion artifacts and noise. In this work, we rigorously investigate the smartwatch's PPG accuracy against medical-grade electrocardiogram (ECG) and PPG devices during different activities (i.e., sitting, standing, and walking). We conducted a user study with 32 healthy student participants and computed different heart rate (HR) features from the devices. Our analysis shows that the smartwatch PPG features, pnn50, low-frequency power (LF), and high-frequency power (HF), differ significantly from the ECG device during the activities. However, other time-domain features, such as HR, mean normal, standard deviation of normal, and root mean square of successive differences do not differ significantly during different activities. Furthermore, both the medical-grade and smartwatch PPG measurements (pnn50, HF, and LF) differed significantly from the ECG during standing and walking. The smartwatch's PPG accuracy compared with the ECG device reinforces its potential as an alternative health monitoring device.
No takes yet. Share an insight, caveat, or question.
Jaiswal et al. (2023) conducted an observational in Healthy (n=32). Smartwatch photoplethysmography (PPG) vs. Medical-grade electrocardiogram (ECG) and PPG devices was evaluated on Heart rate features (pnn50, LF, HF, HR, mean normal, SDNN, RMSSD). Smartwatch PPG time-domain features like HR and RMSSD did not differ significantly from ECG during activities, whereas pnn50, LF, and HF differed significantly.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: