What underlying physiological principle is associated with pursed-lip breathing?
Understand the Problem
The question asks you to identify the primary physiological mechanism behind pursed-lip breathing. Pursed-lip breathing is a technique often used by individuals with chronic obstructive pulmonary disease (COPD) or other respiratory conditions. The question is testing your knowledge of respiratory physiology and how specific breathing techniques can help improve respiratory function.
Answer
Pursed-lip breathing creates back pressure in the airways, preventing the premature collapse of the alveoli, which improves oxygen and carbon dioxide exchange.
Pursed-lip breathing helps to control oxygenation and ventilation. This technique involves inhaling through the nose and exhaling through pursed lips, which creates back pressure in the airways. This back pressure prevents the premature collapse of the alveoli, and improves oxygen and carbon dioxide exchange.
Answer for screen readers
Pursed-lip breathing helps to control oxygenation and ventilation. This technique involves inhaling through the nose and exhaling through pursed lips, which creates back pressure in the airways. This back pressure prevents the premature collapse of the alveoli, and improves oxygen and carbon dioxide exchange.
More Information
Pursed-lip breathing is commonly used by individuals with chronic obstructive pulmonary disease (COPD) or other lung conditions to alleviate shortness of breath.
Sources
- Pursed Lip Breathing - Physiopedia - physio-pedia.com
- Pursed-lip Breathing - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
- Pursed Lip Breathing: Technique, Purpose & Benefits - my.clevelandclinic.org
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