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// Workers AI · dad joke modeWhat did diaphragmatic breathing say? "I'm under a lot of pressure".

From Wikipedia, the free encyclopedia
(Redirected from Deep breathing)
Animation of diaphragmatic breathing with the diaphragm shown in green
Belly expanding and contracting during this type of breathing

Diaphragmatic breathing, abdominal breathing, belly breathing,[1] or deep breathing[2] is a breathing technique that is done by contracting the diaphragm, a muscle located horizontally between the thoracic cavity and abdominal cavity. Air enters the lungs as the diaphragm strongly contracts, but unlike traditional relaxed breathing (eupnea) the intercostal muscles of the chest do minimal work in this process.[3] The belly also expands during this type of breathing to make room for the contraction of the diaphragm.[citation needed]

Physiology

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During diaphragmatic breathing, contraction of the diaphragm increases thoracic volume and lowers intrathoracic pressure, facilitating venous return to the heart and lung expansion. Baroreceptors in the aortic arch and carotid sinus respond to the resulting changes in blood pressure, modulating activity of the vagus nerve and influencing heart rate variability (HRV).[4] Slow diaphragmatic breathing, typically defined as fewer than 10 breaths per minute, has been associated with increased parasympathetic activity via enhanced respiratory sinus arrhythmia (RSA).[5]

Clinical applications

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Diaphragmatic breathing is used as an adjunct intervention in several clinical contexts. A 2017 randomized controlled trial found that slow diaphragmatic breathing (6 breaths/min) significantly reduced cortisol levels and improved sustained attention in healthy adults. [6] It is commonly recommended for patients with chronic obstructive pulmonary disease (COPD) to reduce the work of breathing, though evidence for its effect on exercise tolerance in COPD is mixed.[7] Diaphragmatic breathing exercises are also incorporated into cognitive behavioral therapy protocols for anxiety disorders and panic disorder.[8]

See also

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References

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  1. "Learning diaphragmatic breathing". Harvard Health. 2016-03-10. Retrieved 2023-02-23.
  2. Saladin. Anatomy & Physiology: The Unity of Form and Function (7 ed.). p. 337.
  3. "39.10: Breathing - Types of Breathing". Biology LibreTexts. 2018-07-17. Retrieved 2023-02-23.
  4. Zaccaro, Piarulli & Laurino 2018.
  5. Russo, Santarelli & O'Rourke 2017.
  6. Ma 2017.
  7. Cahalin, Lawrence; Braga, Malinda; Matsuo, Yoshimi; Hernandez, Edgar (1 January 2002). "Efficacy of Diaphragmatic Breathing in Persons With Chronic Obstructive Pulmonary Disease: A Review of the Literature". Journal of Cardiopulmonary Rehabilitation. 22 (1): 7–21. doi:10.1097/00008483-200201000-00002. PMID 11839992.
  8. Clark, David M. (1986). "A cognitive approach to panic". Behaviour Research and Therapy. 24 (4): 461–470. doi:10.1016/0005-7967(86)90011-2. ISSN 0005-7967. PMID 3741311. Retrieved 1 July 2026.

Sources

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