Relação entre o nível de atividade física e o grau de obstrução das vias aéreas em pacientes com doença pulmonar obstrutiva crônica
Relation between physical activity level and degree of airway obstruction in patients with chronic obstructive pulmonary disease
Bruna da Silva Pinto Pinheiro Vieira, Filipe Tadeu Sant’Anna Athayde, Nathália Silveira e Silva, Ana Paula Moreira, Isabela Maria Braga Sclauser Pessoa, Marcelo Velloso
Resumo
Introdução: A utilização isolada de parâmetros espirométricos pode não ser apropriada para inferir sobre os diferentes componentes da funcionalidade dos pacientes com Doença Pulmonar Obstrutiva Crônica, de acordo com a Classificação Internacional de Funcionalidade, Incapacidade e Saúde (CIF). Objetivo: Analisar a relação entre o grau de obstrução ao fluxo aéreo, medido por meio de variáveis espirométricas e o nível de atividade física em pacientes com DPOC, medido pelo questionário perfil de atividade humana (PAH). Métodos: Vinte pacientes com DPOC foram convidados a responder o questionário PAH por meio de entrevista. Em seguida, foram obtidos os valores espirométricos a partir dos prontuários fornecidos pelo hospital. A associação entre as variáveis foi analisada por correlações lineares por meio do coeficiente de Spearman. Considerou-se significativo um p<0,05. Resultados: Detectou-se correlação significativa entre o escore ajustado de atividade (EAA) e o volume expiratório forçado no primeiro segundo (VEF1 ), tanto em valor absoluto (r=0,568) quanto em percentual do previsto (r=0,524). No entanto, não houve correlação entre o fluxo expiratório forçado entre 25 e 75% da capacidade vital forçada (FEF25-75%) e os escores do PAH. Conclusão: O presente estudo apresenta correlações significativas, de fraca à moderada magnitude, entre os valores de VEF1 e os escores do PAH, sugerindo que quanto maior o grau de obstrução das vias aéreas, menor o nível funcional e nível de atividade física em pacientes com DPOC.
Palavras-chave
Abstract
Background: The use of isolated spirometric parameters may not be appropriate to infer about the different components of functionality in patients with chronic obstructive pulmonary disease (COPD), according to the International Classification of Functioning, Disability and Health (ICF). Objective: To analyze the relationship between the degree of airflow obstruction, measured by spirometric variables, and the level of physical activity in patients with COPD, measured by the human activity profile questionnaire (HAP). Methods: Twenty patients with COPD were asked to answer the HAP questionnaire by interviews. Then, spirometric values were obtained from the records provided by the hospital. The association between variables was analyzed by linear correlations using the Spearman correlation coefficient. Statistical significance was set at p<0.05. Results: There was a significant correlation between adjusted activity score (AAS) and forced expiratory volume in the first second (FEV1 ), both in absolute value (r=0.568) and in percentage of predicted (r=0.524). However, there was no correlation between forced expiratory flow between 25% and 75% of forced vital capacity (FEF25-75%) and scores of HAP. Conclusion: This study presents significant correlations, from weak to moderate magnitude, between FEV1 values and the scores of HAP, suggesting that the higher the degree of airway obstruction, the lower the functional level and the level of physical activity in patients with COPD.
Keywords
References
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