Method for Determining the Dominant Type of Human Breathing Using Motion Capture and Machine Learning
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Published:2023-05-12
Issue:5
Volume:16
Page:249
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ISSN:1999-4893
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Container-title:Algorithms
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language:en
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Short-container-title:Algorithms
Author:
Orlova Yulia12ORCID, Gorobtsov Alexander34ORCID, Sychev Oleg1ORCID, Rozaliev Vladimir1ORCID, Zubkov Alexander1ORCID, Donsckaia Anastasia1ORCID
Affiliation:
1. Software Engineering Department, Volgograd State Technical University, Lenin Ave., 28, Volgograd 400005, Russia 2. Department of Information Development, Volgograd State Medical University, Pavshikh Bortsov Sq., 1, Volgograd 400066, Russia 3. Higher Mathematics Department, Volgograd State Technical University, Lenin Ave., 28, Volgograd 400005, Russia 4. Mechanical Engineering Research Institute of the Russian Academy of Sciences, Maly Kharitonyevsky Pereulok, 4, Moscow 101990, Russia
Abstract
Since the COVID-19 pandemic, the demand for respiratory rehabilitation has significantly increased. This makes developing home (remote) rehabilitation methods using modern technology essential. New techniques and tools, including wireless sensors and motion capture systems, have been developed to implement remote respiratory rehabilitation. Significant attention during respiratory rehabilitation is paid to the type of human breathing. Remote rehabilitation requires the development of automated methods of breath analysis. Most currently developed methods for analyzing breathing do not work with different types of breathing. These methods are either designed for one type (for example, diaphragmatic) or simply analyze the lungs’ condition. Developing methods of determining the types of human breathing is necessary for conducting remote respiratory rehabilitation efficiently. We propose a method of determining the type of breathing using wireless sensors with the motion capture system. To develop that method, spectral analysis and machine learning methods were used to detect the prevailing spectrum, the marker coordinates, and the prevailing frequency for different types of breathing. An algorithm for determining the type of human breathing is described. It is based on approximating the shape of graphs of distances between markers using sinusoidal waves. Based on the features of the resulting waves, we trained machine learning models to determine the types of breathing. After the first stage of training, we found that the maximum accuracy of machine learning models was below 0.63, which was too low to be reliably used in respiratory rehabilitation. Based on the analysis of the obtained accuracy, the training and running time of the models, and the error function, we choose the strategy of achieving higher accuracy by increasing the training and running time of the model and using a two-stage method, composed of two machine learning models, trained separately. The first model determines whether the breath is of the mixed type; if it does not predict the mixed type of breathing, the second model determines whether breathing is thoracic or abdominal. The highest accuracy achieved by the composite model was 0.81, which surpasses single models and is high enough for use in respiratory rehabilitation. Therefore, using three wireless sensors placed on the patient’s body and a two-stage algorithm using machine learning models, it was possible to determine the type of human breathing with high enough precision to conduct remote respiratory rehabilitation. The developed algorithm can be used in building rehabilitation applications.
Subject
Computational Mathematics,Computational Theory and Mathematics,Numerical Analysis,Theoretical Computer Science
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1. A Method for Determining the Type of Human Breathing Based on Machine Learning;Proceedings of the Southwest State University. Series: IT Management, Computer Science, Computer Engineering. Medical Equipment Engineering;2023-08-02
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