Spontaneous respiratory modulation improves cardiovascular control in essential hypertension

被引:29
作者
da Justa Pinheiro, Carlos Hermano [1 ,2 ]
Ribeiro Medeiros, Renato Antonio [1 ,2 ]
Moura Pinheiro, Denise Goncalves [1 ,2 ]
Ferreira Marinho, Maria de Jesus [1 ,2 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Lab Cadiopneumol & Fisiol Exercicio, Univ Fortaleza, Escola Saude Publ Estado Ceara, Fortaleza, Ceara, Brazil
[2] Univ London Imperial Coll Sci Technol & Med, Lab Cadiopneumol & Fisiol Exercicio, Univ Fortaleza, Escola Saude Publ Estado Ceara, London, England
关键词
respiration; blood pressure; hypertension; breathing exercises;
D O I
10.1590/S0066-782X2007000600005
中图分类号
R5 [内科学];
学科分类号
1002 [临床医学]; 100201 [内科学];
摘要
Background: Recent studies show that controlled breathing improves baroreflex and heart rate variability and lowers blood pressure in hypertensive patients. Objective: To evaluate the effects of slow breathing training on cardiorespiratory system modulation of patients (n = 10, men and women, ages ranging from 45 to 60) with essential hypertension seen in an outpatient setting. Methods: According to the study design, each patient was used as his/her own control, and data were collected before and after the intervention. The following parameters were assessed: heart rate variability (HRV), systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial blood pressure (MAP), respirometry. chest expansion measurement, and statistical data analysis. Respiratory training was performed in 30-minute sessions held twice a week over one month using slow breathing exercises. Results: Our results were as follows: a reduction in SBP DPB, and MAP (p<0.05 vs control); an increase in heart rate variability, as evidenced by greater RR interval variation and SDNN index; a decline in respiratory rate (p<0.07 vs control); and an increase in tidal volume (p<0.01 vs control) and thoracic expansibility (p<0.01 vs control). Conclusion: Respiratory retraining using the slow breathing technique appears to be a useful adjunctive for cardiorespiratory control in hypertensive patients.
引用
收藏
页码:651 / 659
页数:9
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