The NAPS system detected heart rate to within 2.72 beats per minute of ECG and breathing rate to within 2.10 breaths per minute of RIP during overnight sleep studies.
Observational (n=40)
No
Does the NAPS system accurately detect heart rate and breathing rate compared to standard measures in healthy subjects?
The NAPS system demonstrates preliminary accuracy for passive, noninvasive monitoring of heart rate and breathing rate during sleep.
Techniques such as ballistocardiography (BCG) that can provide noninvasive long-term physiological monitoring have gained interest due to a growing recognition of adverse effects from poor sleep and sleep disorders. The noninvasive analysis of physiological signals (NAPS) system is a BCG-based monitoring system developed to measure heart rate, breathing rate, and musculoskeletal movement that shows promise as a general sleep analysis tool. Overnight sleep studies were conducted on 40 healthy subjects during a clinical trial at the University of Virginia. The NAPS system's measures of heart rate and breathing rate were compared to ECG, pulse oximetry, and respiratory inductance plethysmography (RIP). The subjects were split into a training dataset and a validation dataset, maintaining similar demographics in each set. The NAPS system accurately detected heart rate, averaged over the prescribed 30-s epochs, to within less than 2.72 beats per minute of ECG, and accurately detected breathing rate, averaged over the same epochs, to within 2.10 breaths per minute of RIP bands used in polysomnography.
Mack et al. (Thu,) conducted a observational in Healthy (n=40). Noninvasive analysis of physiological signals (NAPS) system vs. ECG, pulse oximetry, and respiratory inductance plethysmography (RIP) was evaluated on Heart rate and breathing rate accuracy. The NAPS system detected heart rate to within 2.72 beats per minute of ECG and breathing rate to within 2.10 breaths per minute of RIP during overnight sleep studies.