| Full text | |
| Author(s): |
ANDRÉA L.G. DA SILVA
[1]
;
CÁSSIA L. GOULART
[2]
;
KAMILA M.K. MANSOUR
[3]
;
GUILHERME D. BACK
[4]
;
RAMONA CABIDDU
[5]
;
RENATA TRIMER
[6]
;
AUDREY BORGHI-SILVA
[7]
Total Authors: 7
|
| Affiliation: | [1] Universidade de Santa Cruz do Sul. Departamento de Ciências da Saúde - Brasil
[2] Universidade de Santa Cruz do Sul. Departamento de Ciências da Saúde - Brasil
[3] Programa de Residência Multiprofissional em Saúde/ Fisioterapia. Hospital Santa Cruz - Brasil
[4] Universidade de Santa Cruz do Sul. Departamento de Ciências da Saúde - Brasil
[5] Universidade Federal de São Carlos. Departamento de Fisioterapia - Brasil
[6] Universidade de Santa Cruz do Sul. Departamento de Ciências da Saúde - Brasil
[7] Universidade Federal de São Carlos. Departamento de Fisioterapia - Brasil
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | Anais da Academia Brasileira de Ciências; v. 92, n. 2 2020-07-20. |
| Abstract | |
Abstract Aim: to evaluate the acute effects of expiratory positive airway pressure on cardiac autonomic modulation in chronic obstructive pulmonary disease patients during spontaneous breathing and slow deep breathing. Methods: 17 patients were evaluated. The R-R intervals were collected (Polar® S810i) during spontaneous breathing (10 minutes) and slow deep breathing (4 minutes), with and without 5 cmH2O expiratory positive airway pressure. Stable signals were analyzed by Kubios®. Heart rate variability indices were computed in time domain and in frequency domain. Results: Expiratory positive airway pressure application affected low frequency (spontaneous breathing: 62.5±4.1 vs slow deep breathing: 28.2±4.2, p<0.001) and high frequency (spontaneous breathing: 37.4±17.3 vs slow deep breathing: 58.9±18.1, p<0.001). Interactions were observed between expiratory positive airway pressure effect and slow deep breathing effect for low frequency (p<0.001), high frequency (p<0.001) and low frequency/high frequency ratio (p<0.001). When patients were stratified by disease’s severity, we identified a significant low frequency reduction (p<0.001) and high frequency increase (p<0.001) for all stages when slow deep breathing was associated with expiratory positive airway pressure. Conclusion: A 5 cmH2O expiratory positive airway pressure during spontaneous and slow deep breathing can elicit an acute response, resulting in a cardiac autonomic control improvement in moderate-to-very severe patients. (AU) | |
| FAPESP's process: | 13/23013-0 - Heart rate variability and cardiorespiratory coupling in the coexistence of chronic obstructive pulmonary disease associated with obstructive sleep apnea |
| Grantee: | Renata Trimer |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 15/04101-1 - Clinical, functional and systemic effects of whole-body electrical stimulation after bariatric surgery |
| Grantee: | Audrey Borghi Silva |
| Support Opportunities: | Regular Research Grants |