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Estimation of lung volume change from torso hemicircumferences
Journal of Speech and Hearing Research
|December 1, 1977
Summary
This study presents an easy and inexpensive method to estimate lung volume changes using Whitney-gage transducers. The technique accurately measures respiratory movements without hindering the subject.
Area of Science:
- Respiratory Physiology
- Biomedical Engineering
- Medical Instrumentation
Background:
- Accurate measurement of lung volume change is crucial for respiratory diagnostics.
- Existing methods can be cumbersome, restrictive, or expensive.
Purpose of the Study:
- To describe a novel, non-invasive, and cost-effective technique for estimating lung volume changes.
- To develop instrumentation that minimizes subject burden and movement obstruction.
Main Methods:
- Utilized Whitney-gage transducers to measure rib cage and abdominal hemicircumferences.
- Employed a standard bridge circuit to generate voltages proportional to these measurements.
- Developed a weighted sum of voltages for accurate lung volume estimation.
Main Results:
- The described technique provides a good estimate of lung volume change.
- Instrumentation is non-obstructive to articulatory movements and does not load the chest wall.
- The method is easy and inexpensive to construct and implement.
Conclusions:
- This technique offers a practical and accessible approach to monitoring lung volume dynamics.
- The developed instrumentation is suitable for various research and clinical applications requiring respiratory monitoring.
- Further validation in diverse populations and conditions is warranted.