Correlation between respiratory muscle strength, functional capacity and quality in congestive heart failure
DOI:
https://doi.org/10.5585/conssaude.v18n2.11401Keywords:
Heart failure, Quality of life, Respiratory muscles, Functional capacity.Abstract
Introduction: Congestive heart failure (CHF) is considered a systemic syndrome characterized by fatigue and dyspnea. Objective: To correlate the quality of life, functional capacity and respiratory muscle strength of patients with CHF. Methods: Patients with CHF, internal in a reference hospital, were evaluated. Functional classification was performed by the New York Heart Association (NYHA), quality of life by the Minnesota Living with Heart Failure Questionnaire (MLHFQ), and maximal inspiratory pressure (MIP) and maximum expiratory pressure (MEP) by the manovacuometry. Results: Forty-three patients were included, 26 (60.5%) men, with a mean age of 73.16 (± 10.28) years. Most patients (44.2%) were in NYHA class 3. Negative correlation was found for MIP and MEP with NYHA (rs = -0.478, rs = -0.490, respectively), and MLHFQ with MIP (rs = -0.393). Conclusion: We conclude that reduction of respiratory muscle strength leads to a decrease in quality of life and worsening of functional capacity.
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