Resumo
Objetivo: Sintetizar as evidências de ensaios clínicos randomizados que investigaram os efeitos do treinamento muscular respiratório (TMR) na melhora funcional e em outros desfechos clínicos em pacientes com DPOC. Métodos: Foi realizada uma revisão integrativa utilizando as bases de dados da Biblioteca Nacional de Medicina, incluindo o PubMed. Ensaios clínicos randomizados publicados entre 2020 e 2024 foram considerados elegíveis. Resultados: Oito estudos atenderam aos critérios de inclusão predefinidos e foram incluídos na análise final. O TMR foi associado a melhorias significativas na força muscular inspiratória, tolerância ao exercício, dispneia e qualidade de vida relacionada à saúde, tanto como intervenção isolada quanto quando combinado com outras estratégias de reabilitação. Embora nem todos os parâmetros espirométricos tenham demonstrado alterações consistentes entre os estudos, a maioria dos ensaios relatou benefícios clinicamente relevantes em desfechos funcionais e centrados no paciente. Considerações finais: O TMR parece ser uma estratégia segura, viável e potencialmente eficaz na reabilitação de pacientes com DPOC e pode ser considerado um componente integral de intervenções terapêuticas abrangentes.
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