Physiological sensing on the upper arm with a wireless multi-modal wearable

Kimberly L. Branan; Justin McMurray; Richard Jennings II; Madhav Erraguntla; Ricardo Gutierrez-Osuna; Gerard L. Coté

doi:10.1117/12.3003163

27 March 2024 Physiological sensing on the upper arm with a wireless multi-modal wearable

Kimberly L. Branan, Justin McMurray, Richard Jennings II, Madhav Erraguntla, Ricardo Gutierrez-Osuna, Gerard L. Coté

Proceedings Volume 12850, Optical Diagnostics and Sensing XXIV: Toward Point-of-Care Diagnostics; 128500E (2024) https://doi.org/10.1117/12.3003163
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

In this research, we examine the potential of measuring physiological variables, including heart rate (HR) and respiration rate (RR) on the upper arm using a wireless multimodal sensing system consisting of an accelerometer, a gyroscope, a three-wavelength photoplethysmography (PPG), single-sided electrocardiography (SS-ECG), and bioimpedance (BioZ). The study included collecting HR data when the subject was at rest and typing, and RR data when the subject was at rest. The data from three wavelengths of PPG and BioZ were collected and compared to the SS-ECG as the standard. The accelerometer and gyro signals were used to exclude data with excessive noise due to motion. The results showed that when the subject remained sedentary, the mean absolute error (MAE) for the HR calculation for all three wavelengths of the PPG modality was less than two bpm, while the BioZ was 3.5 bpm compared with SS-ECG HR. The MAE for typing increased for both modalities and was less than three bpm for all three wavelengths of the PPG but increased to 7.5 bpm for the BioZ. Regarding RR, both modalities resulted in RR within one breath per minute of the SS-ECG modality for the one breathing rate. Overall, all modalities on this upper arm wearable worked well when the subject was sedentary. Still, the SS-ECG and PPG showed less variability for the HR signal in the presence of motion during micro-motions such as typing.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kimberly L. Branan, Justin McMurray, Richard Jennings II, Madhav Erraguntla, Ricardo Gutierrez-Osuna, and Gerard L. Coté "Physiological sensing on the upper arm with a wireless multi-modal wearable", Proc. SPIE 12850, Optical Diagnostics and Sensing XXIV: Toward Point-of-Care Diagnostics, 128500E (27 March 2024); https://doi.org/10.1117/12.3003163

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