Abstract

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Title:: Preliminary application of multi-parameter cardiopulmonary exercise test system

Author(s):: LIU Jie1; 3; YE Jilun1; 2; 3; WEN Bin1; 3; YUAN Maojie1; 3; 1. Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen 518060, China 2. Guangdong Key Laboratory for Biomedical Signal Measurements and Ultrasound Imaging, Shenzhen 518060, China 3. Shenzhen Key Laboratory for Biomedical Engineering, Shenzhen 518060, China

Keywords:: Keywords: 12-lead ECG respiratory mechanics oxygen carbon dioxide static lung function dynamic cardiopulmonary function

Abstract:: Abstract: Cardiopulmonary exercise test combines the proportion of breathing gas, 12-lead ECG and cycloergometer to monitor the real-time dynamic changes of cardiopulmonary function parameters such as heart rate, oxygen consumption and carbon dioxide output under varying load conditions, so as to objectively and quantitatively evaluate cardiopulmonary reserve, thereby providing corresponding clinical data for physicians to diagnose and evaluate cardiopulmonary diseases and exercise tolerance. Five vital signs, namely 12-lead ECG, respiratory flow, blood pressure, carbon dioxide and oxygen, can be monitored by the system for calculating static lung function parameters at rest, such as forced vital capacity, slow vital capacity and maximum ventilation volume, and calculating dynamic cardiopulmonary function parameters during exercise, such as oxygen uptake per minute, carbon dioxide output per minute and anaerobic threshold. Through verification, the system is proved to be stable and reliable, and the parameter calculation is accurate. The proposed system can be used to accurately diagnose exercise intolerance, providing a reliable reference for evaluating the functions of human breathing, circulation, metabolism, etc., with a good application prospect.