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Updated: Sep 29, 2025

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
Published on: September 16, 2019
Effects of breathing control using visual feedback of thoracoabdominal movement on aerobic exercise
Nobuhisa Ishii1, Kazuhide Tomita2, Kenta Kawamura3
1Department of Rehabilitation, Ibaraki Prefectural Central Hospital, 6528 koibuchi, Kasama-city, Ibaraki 309-1793, Japan; Graduate School of Health Science, Ibaraki Prefectural University of Health Sciences, 4669-2 Ami, Inashiki District, Ibaraki 300-0394, Japan.
Purpose:
To clarify whether voluntary respiratory movement control strategy is sustainable during exercise and to determine its effect on aerobic exercise.
Material And Methods:
Ten healthy men were enrolled in this study. We developed a device that can convert information on thoracoabdominal changes from an inductance plethysmograph and display the Konno-Mead diagram on the monitor in real time for each breath. On the first day, an incremental load test (ILT) was performed under two conditions. On the second day, a constant load test (CLT) was performed under two conditions using the load 1 min before the anaerobic threshold (AT).
Results:
In the ILT, a significant prolongation of AT time was observed with voluntary respiratory movement control. In the CLT, carbon dioxide excretion showed no significant interaction, but the gas exchange ratio did.
Conclusion:
Voluntary respiratory movement control using a combination of chest band and visual feedback of thoracoabdominal movements may be a respiratory strategy to enhance aerobic exercise.
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