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Article

Wearable Cardiopulmonary Function Evaluation System for Six-Minute Walking Test

1
Department of Computer Science and Information Engineering, National Taipei University, New Taipei City 23741, Taiwan
2
Institute of Photonic System, National Chiao Tung University, Tainan 71150, Taiwan
3
Institute of Imaging and Biomedical Photonics, National Chiao Tung University, Tainan 71150, Taiwan
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(21), 4656; https://doi.org/10.3390/s19214656
Received: 13 September 2019 / Revised: 20 October 2019 / Accepted: 24 October 2019 / Published: 26 October 2019
As a submaximal exercise test, a 6-min walking test (6MWT) can be considered a suitable index for the exercise capacity of patients with a respiratory problem. Traditionally, medical staff manually collect cardiopulmonary information using different devices. However, no integrated monitoring system is currently available to simultaneously record the real-time breathing sound, heart rhythm, and precise walking information (i.e., walking distance, speed, and acceleration) during the 6MWT. In this study, a wearable and wireless multiparameter monitoring system is proposed to simultaneously monitor the breathing sound, oxygen saturation (SpO2), electrocardiograph (ECG) signals, and precise walking information during the 6MWT. Here, a wearable mechanical design was successfully used to reduce the effect of motion artifacts on the breathing sound and ECG signal. A multiparameter detection algorithm was designed to effectively estimate heart and breathing rates. Finally, the cardiopulmonary function of smokers was evaluated using the proposed system. The evaluation indicated that this system could reveal dynamic changes and differences in the breathing rate, heart rate, SpO2, walking speed, and acceleration during the 6MWT. The proposed system can serve as a more integrated approach to monitor cardiopulmonary parameters and obtain precise walking information simultaneously during the 6MWT. View Full-Text
Keywords: cardiopulmonary function; 6-min walking test (6MWT); electrocardiogram; breathing sound; indoor walking distance cardiopulmonary function; 6-min walking test (6MWT); electrocardiogram; breathing sound; indoor walking distance
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MDPI and ACS Style

Lin, B.-S.; Jhang, R.-J.; Lin, B.-S. Wearable Cardiopulmonary Function Evaluation System for Six-Minute Walking Test. Sensors 2019, 19, 4656. https://doi.org/10.3390/s19214656

AMA Style

Lin B-S, Jhang R-J, Lin B-S. Wearable Cardiopulmonary Function Evaluation System for Six-Minute Walking Test. Sensors. 2019; 19(21):4656. https://doi.org/10.3390/s19214656

Chicago/Turabian Style

Lin, Bor-Shing, Ruei-Jie Jhang, and Bor-Shyh Lin. 2019. "Wearable Cardiopulmonary Function Evaluation System for Six-Minute Walking Test" Sensors 19, no. 21: 4656. https://doi.org/10.3390/s19214656

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