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Updated: Sep 10, 2025
06:11
Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
Published on: February 9, 2022
5.8K
Spirometry update 2019: phase 4 forced maximal inspiration and new acceptability criteria
Sunil K Chhabra1, Mandeep Singh2
1Department of Pulmonary Medicine, Primus Superspeciality Hospital, New Delhi, India.
Breathe (Sheffield, England)
|August 21, 2025
Summary
Spirometry now includes a forced inspiration after expiration (FIVC) to assess lung function. A new quality check compares FIVC and FVC to ensure accurate results.
Area of Science:
- Pulmonary Function Testing
- Respiratory Medicine
Background:
- Spirometry is a cornerstone of pulmonary function testing.
- Assessing the full inspiratory capacity is crucial for comprehensive lung function evaluation.
Purpose of the Study:
- To introduce and validate the forced inspiratory volume in 1 second (FIVC) maneuver.
- To establish a new spirometry acceptability criterion based on the FIVC-FVC difference.
Main Methods:
- Modified spirometry procedure incorporating a forced complete inspiration after end-expiration.
- Development and application of a quality control measure comparing FIVC and FVC values.
Main Results:
- The FIVC maneuver has been successfully integrated into standard spirometry.
- A novel acceptability criterion using the FIVC-FVC difference enhances data quality.
Conclusions:
- The addition of FIVC to spirometry provides a more complete assessment of lung mechanics.
- The FIVC-FVC difference criterion improves the reliability and accuracy of spirometry measurements.
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