Zha Bingjie, Wang Zhuo, Li Linqing, Hu Xuehao, Ortega Beatriz, Li Xiaoli, Min Rui
Center for Cognition and Neuroergonomics, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Zhuhai 519087, China.
Department of Electromagnetism and Telecommunication, University of Mons, Boulevard Dolez 31, 7000 Mons, Belgium.
Biomed Opt Express. 2023 Apr 24;14(5):2260-2275. doi: 10.1364/BOE.490034. eCollection 2023 May 1.
This work presents a stretchable elastomer optical fiber sensor incorporated into a belt for respiratory rate (RR) and heart rate (HR) monitoring. Different materials and shapes of prototypes designed were tested in terms of performance and the best choice was identified. The optimal sensor was tested by 10 volunteers to evaluate the performance. The proposed elastomer optical fiber sensor can achieve simultaneous measurement of RR and HR in different body positions, and also ballistocardiography (BCG) signal measurement in the lying position. The sensor has good accuracy and stability, with maximum errors of 1 bpm and 3 bpm for RR and HR, respectively, and average weighted mean absolute percentage error (MAPE) of 5.25% and root mean square error (RMSE) of 1.28 bpm. Moreover, the results of the Bland-Altman method showed good agreement of the sensor with manual counting of RR and with electrocardiogram (ECG) measurements of HR.
这项工作展示了一种集成在腰带中的可拉伸弹性体光纤传感器，用于监测呼吸频率（RR）和心率（HR）。针对设计的不同材料和形状的原型，从性能方面进行了测试，并确定了最佳选择。由10名志愿者对优化后的传感器进行测试以评估其性能。所提出的弹性体光纤传感器能够在不同身体位置同时测量RR和HR，还能在卧位测量心冲击图（BCG）信号。该传感器具有良好的准确性和稳定性，RR和HR的最大误差分别为1次/分钟和3次/分钟，平均加权平均绝对百分比误差（MAPE）为5.25%，均方根误差（RMSE）为1.28次/分钟。此外，布兰德-奥特曼方法的结果表明，该传感器与RR的人工计数以及HR的心电图（ECG）测量结果具有良好的一致性。
