Key result
Slow paced breathing down to 2 breaths per minute decreases minute ventilation and CO2 output.
Why the study?
The mechanisms by which respiratory self-control techniques produce clinical effects remain largely unknown.
Does progressive slow paced breathing improve gas exchange efficiency in healthy individuals?
Does progressive slow paced breathing improve gas exchange efficiency in healthy individuals?
Progressive slow paced breathing down to 2 cpm improves gas exchange efficiency and maximizes heart rate variability and baroreflex sensitivity at 4 cpm in healthy individuals.
Does not support clinical adoption in healthy adults; leaves open optimal rates for gas exchange efficiency.
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Terai et al. (2015) studied Healthy (n=10). Progressive slow paced breathing vs. Baseline rest and 12 cpm paced breathing was evaluated on Minute ventilation, CO2 output, and CO2 equivalence (p=<0.05). Progressive slow paced breathing down to 2 breaths per minute significantly decreased minute ventilation and CO2 output while maintaining end-tidal CO2.
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