Respostas cardiopulmonares ao exercício em pacientes com insuficiência cardíaca congestiva de diferentes faixas etárias

• Autor(a) principal: César, Marcelo de Castro [UNIFESP]
• Data de Publicação: 2006
• Outros Autores: Montesano, Fábio Tadeu [UNIFESP], Diniz, Rosiane Viana Zuza [UNIFESP], Almeida, Dirceu Rodrigues de [UNIFESP], Tebexreni, Antonio Sergio [UNIFESP], Barros, Turíbio Leite de [UNIFESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNIFESP
• Texto Completo: https://dx.doi.org/10.1590/S0066-782X2006000100003; https://repositorio.unifesp.br/handle/11600/2852
• topic: Exercise; Congestive heart failure; Age; Exercício; Insuficiência cardíaca congestiva; Idade

OBJECTIVES: This paper aims at comparing cardiorespiratory functional capacity during exercise - represented by indicators of functional limitation, maximal oxygen uptake (VO2max), and anaerobic threshold - plus cardiopulmonary responses to maximal exercise in congestive heart failure (CHF) patients belonging to different age groups. METHODS: Fifty-four CHF patients, stratified by age group, were evaluated as follows: group I - 30 to 39 years (n = 12); group II - 40 to 49 years (n = 18); group III - 50 to 59 years (n = 17); and group IV - 60 years and above (n = 7). All patients underwent maximal cardiopulmonary exercise testing (CPET) on treadmills. A single-factor analysis of variance (ANOVA) was performed to compare different age groups. RESULTS: No significant differences were found in maximal oxygen uptake and anaerobic threshold among the age groups, nor in maximal values for carbon dioxide production, oxygen pulse, respiratory exchange ratio, pulmonary ventilation, and ventilatory equivalents for oxygen and carbon dioxide. CONCLUSIONS: These findings suggest that cardiorespiratory functional capacity during exercise in patients with CHF, as well as cardiopulmonary variables at maximal exercise, may be similarly affected by the heart disease in all studied age groups.