Autonomic changes in young smokers: acute effects of inspiratory exercise
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Citações na Scopus
7
Tipo de produção
article
Data de publicação
2013
Editora
SPRINGER HEIDELBERG
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ISSN da Revista
Título do Volume
Autores
RODRIGUES, Fernando
ARAUJO, Amanda Aparecida
FERREIRA, Janaina
SILVA, Michelle Cristina de Barros
NASCIMENTO, Ademir Manoel
LIRA, Fabio Santos
ANGELIS, Katia De
RODRIGUES, Bruno
Autor de Grupo de pesquisa
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Citação
CLINICAL AUTONOMIC RESEARCH, v.23, n.4, p.201-207, 2013
Resumo
One of the most important consequences of smoking is the development of cardiovascular diseases. However, little is known about the early consequences of smoking and the acute effects of a single inspiratory muscle exercise session (IME). We evaluated the acute effects of an IME on cardiac parameters of young smokers. Twelve nonsmokers (C) and fifteen smokers [S; 2.08 (1.0-3.2) pack-years] underwent an acute IME. We evaluated blood pressure (BP) and lactate, and we recorded RR interval for posterior analysis of heart rate variability (HRV), before and after IME. At baseline, systolic BP and HRV parameters in time and frequency domains were changed in S group in comparison with the C. Following IME, S group reduced systolic BP (-8 %), low frequency band (LF) (-21.4 %), LF/high frequency (HF) (-57 %), as well as increased RR variance (+105 %) and HF band. Our findings indicate that a single session of inspiratory muscle exercise was able to both reduce systolic BP and improve parasympathetic and sympathetic modulations in young smokers. The results of the current study highlight the importance of furthering research on this area to better elucidate the acute and chronic effects of inspiratory muscle training on early cardiovascular and pulmonary changes of cigarette smoking.
Palavras-chave
Smoking, Inspiratory muscle exercise, Autonomic function
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