Accelerometer-Based Respiratory Measurement During Speech

2011 ◽  
Author(s):  
Andrew Bates ◽  
Martin Ling ◽  
Christian Geng ◽  
Alice Turk ◽  
D.K. Arvind
Keyword(s):  
Respiratory Measurement

scholarly journals Miniaturization of Respiratory Measurement System in Artificial Ventilator for Small Animal Experiments to Reduce Dead Space and Its Application to Lung Elasticity Evaluation

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5123
Author(s):  
Homare Yoshida ◽  
Yoshihiro Hasegawa ◽  
Miyoko Matsushima ◽  
Tomoshi Sugiyama ◽  
Tsutomu Kawabe ◽  
...  
Keyword(s):  
Respiratory System ◽  
Measurement System ◽  
Dead Space ◽  
Animal Experiments ◽  
Small Animal ◽  
Silicone Resin ◽  
Directional Detection ◽  
Mems Technology ◽  
Respiratory Measurement ◽  
Static Conditions

A respiratory measurement system composed of pressure and airflow sensors was introduced to precisely control the respiratory condition during animal experiments. The flow sensor was a hot-wire thermal airflow meter with a directional detection and airflow temperature change compensation function based on MEMS technology, and the pressure sensor was a commercially available one also produced by MEMS. The artificial dead space in the system was minimized to the value of 0.11 mL by integrating the two sensors on the same plate (26.0 mm × 15.0 mm). A balloon made of a silicone resin with a hardness of A30 was utilized as the simulated lung system and applied to the elasticity evaluation of the respiratory system in a living rat. The inside of the respiratory system was normally pressurized without damage, and we confirmed that the developed system was able to evaluate the elasticity of the lung tissue in the rat by using the pressure value obtained at the quasi-static conditions in the case of the ventilation in the animal experiments.

scholarly journals An Unobtrusive and Non-Contact Method for Respiratory Measurement With Respiratory Region Detecting Algorithm Based on Depth Images

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 8300-8315
Author(s):  
Chenglu Sun ◽  
Wei Li ◽  
Chen Chen ◽  
Zeyu Wang ◽  
Wei Chen
Keyword(s):  
Contact Method ◽  
Depth Images ◽  
Respiratory Measurement

Measurement of Respiration and Respiratory Responses During Inhalation Exposures

1990 ◽  
Vol 9 (4) ◽  
pp. 397-405 ◽  
Author(s):  
Joe L. Mauderly
Keyword(s):  
Breathing Pattern ◽  
Physiological Responses ◽  
Hot Wire ◽  
Advantages And Disadvantages ◽  
Controlled Breathing ◽  
Measurement Devices ◽  
Low Volume ◽  
Respiratory Measurement ◽  
Respiratory Responses

This report reviews approaches for making measurements of the respiration of subjects during inhalation exposures. Respiration is measured to quantitate the volume of exposure material inhaled, to evaluate the normalcy and steadiness of respiration during exposure, to relate breathing pattern to deposition or uptake of inhaled materials, to detect physiological responses to inhaled materials, and to monitor respiration during controlled breathing. A small number of basic devices are commonly used during exposures, including nonrebreathing valves, pneumotachographs, spirometers, and plethysmographs. Less frequently used devices adaptable for use during exposures include hot wire anemometers, respiratory-inductive plethysmographs, and impedance pneumographs. These devices, some of their potential uses, and their advantages and disadvantages are described and useful references are given. Several useful combinations of respiratory measurement devices are suggested for low-volume, bag-to-bag, and immersion exposure systems.

scholarly journals A Validation Study of an Innovative Medical Program to Reconstruct and Compute the Thoracic Volume

2019 ◽  
Author(s):  
Po-Chih Lee ◽  
Arthur G. Erdman ◽  
Charles Ledonio ◽  
David Polly
Keyword(s):  
Usability Testing ◽  
Spine Deformity ◽  
Reconstruction Accuracy ◽  
Volume Reconstruction ◽  
Acceptable Error ◽  
Reproducibility Study ◽  
Medical Program ◽  
Spine Curvature ◽  
Respiratory Measurement ◽  
Operation Results

In this study, we focus on validating the accuracy of the previously developed software, which reconstructs thoracic rib cage and thoracic volume in 3D. This software is applied in spine deformity patients to help doctors monitor and follow spine curvature and the thoracic volume variation. Five users were recruited to perform usability testing for the developed software. The usability testing shows that the performance of the thoracic volume reconstruction via our software meets the criterion set by the American Thoracic Society, which recommends an acceptable error of ±3% for the respiratory measurement. In addition, the user operation results were analyzed through a two-way analysis of variance (ANOVA), without replication, statistical method. The outcome indicates the reconstruction accuracy of the software is satisfactory. In the reproducibility study, the result shows that the performance of the developed software is superior to previous literature and the reconstruction is clinically relevant.

scholarly journals Methods for Breathing Rate Measurement through Mobile Platform: a Review

2019 ◽  
Author(s):  
Diego O. Lemos ◽  
Clauirton A. Siebra
Keyword(s):  
Main Tool ◽  
Breathing Rate ◽  
Rate Measurement ◽  
Clinical Environment ◽  
Review Of The Literature ◽  
Mobile Health Applications ◽  
Pros And Cons ◽  
Respiratory Measurement ◽  
Combination Of Methods ◽  
Health Applications

Breathing rate is a vital sign that can indicate someone’s health status and even detect early diseases. Mobile health applications might become the main tool for estimating breathing rate out of the clinical environment. In this research, a review of the literature is conducted, aiming at finding out the most recent researches that have been proposed as solutions for respiratory measurement or monitoring using mobile devices. We discuss and compare their methods, highlighting pros and cons regarding ubiquity and feasibility. The results indicate that the combination of methods is a key aspect to improve measurements.

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