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Related Experiment Video

Updated: May 26, 2026

Inspiratory Muscle Training as an Adjunct to the Treatment of Weaning Failure in Critically Ill Patients: A Practical Guide

Inspiratory Muscle Training as an Adjunct to the Treatment of Weaning Failure in Critically Ill Patients: A Practical Guide

Published on: January 30, 2026

Hypoventilation training for asthma: a case illustration.

Ashton M Jeter¹, Hwacha C Kim, Erica Simon

¹Department of Psychology, Southern Methodist University, Dallas, TX 75275, USA.

Applied Psychophysiology and Biofeedback

|January 3, 2012

Summary

Capnometry-assisted respiratory training (CART) improved asthma patient

Area of Science:

Respiratory Medicine
Pulmonary Physiology

Background:

Asthma patients commonly experience hypocapnia due to hyperventilation.
End-tidal carbon dioxide (PCO(2)) levels are crucial indicators of respiratory status.

Observation:

A case study focused on a patient undergoing a 4-week capnometry-assisted respiratory training (CART) program.
The training utilized a portable capnometer to monitor and normalize PCO(2) levels.

Findings:

The patient's basal PCO(2) levels shifted from hypocapnic to normocapnic ranges.
Significant improvements in lung function and reduced diurnal lung function variability were observed.
These positive outcomes remained stable during the follow-up period.

Implications:

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CART shows promise as a therapeutic intervention for asthma patients with hypocapnia.
Normalizing PCO(2) may lead to better lung function and stability in asthma management.
This approach offers a potential non-pharmacological strategy to enhance respiratory control in asthma.