The response of the vena cava to abdominal breathing

The Journal of Alternative and Complementary Medicine : Research on Paradigm, Practice, and Policy
Kyeongmin ByeonKyung Pyo Hong

Abstract

Recently, abdominal-breathing or diaphragmatic-breathing methods have increased in popularity. Little is known how abdominal breathing affects the circulatory system. This study was designed to determine the impact of the respiratory pattern on central venous flow using echocardiography. The superior vena cava (SVC) and inferior vena cava (IVC) were observed in people who had practiced abdominal breathing for at least 2 years, while they were breathing in three different techniques: slow respiration, slow respiration with inspiratory pause, or normal respiration. In addition, the observation during normal respiration was compared with that of a control group. The abdominal-breathing group consisted of 20 people with mean duration of training of 9.6 years. The respiratory collapsibility index of IVC during slow respiration with inspiratory pause was 62±19% compared with 48±19% during normal respiration (p=0.012) in the abdominal-breathing group. The abdominal-breathing group had a higher IVC collapsibility index compared to the control group during normal respiration (48±19% versus 26±12%, p<0.001), assuming a similar respiratory rate of about 10/min. Neither the size nor the minute flow of SVC differed among breathing patterns ...Continue Reading

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Citations

Feb 20, 2016·International Journal of Emergency Medicine·Nik Hisamuddin Na RahmanMohammad Iqhbal Mohammed
Apr 20, 2017·Journal of Magnetic Resonance Imaging : JMRI·Avnesh S ThakorDarren Klass
Dec 7, 2017·Breathe·Marc A RussoDean O'Rourke
Jul 27, 2021·BMJ Nutrition, Prevention & Health·Yixuan FangJianrong Wang

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