Pressões inspiratória e expiratória máximas em crianças e adolescentes com asma

• Autor(a) principal: Oliveira, Cilmery Marly Gabriel de [UNIFESP]
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UNIFESP
• dARK ID: ark:/48912/001300000zm5j
• Texto Completo: https://repositorio.unifesp.br/handle/11600/9954
• topic: Adolescents; Children; Respiratory muscle strength; Respiratory muscles; Asthma; Adolescente; Criança; Músculos respiratórios; Asma

Objective: The objective of this study was to evaluate the strength of respiratory muscles in children and adolescents with asthma by measurement of maximal respiratory pressures and compare them with those observed in control subjects with the same anthropometric characteristics. Methods: Cross-sectional study, which included anthropometric measures (weight, height and arm circumference), pulmonary function tests and measurement of maximal respiratory pressures inspiratory (MIP) and expiratory (MEP) of patients whith asthma and healthy controls aged between 6 and 16 years, regardless of gender. Results: We evaluated the maximal respiratory pressure of 75 asthmatics and 90 healthy individuals (controls) of both sexes, divided by chronological age in children and adolescents. The groups had similar physical characteristics. There was no statistically significant difference in the values of MIP and MEP (p> 0.05) between asthmatics and healthy. There was no statistically significant difference between the maximum pressure of asthmatic males and females. In the control group, MEP was higher in males (p = 0.004). Both groups (asthmatics and controls) adolescents have higher values of maximal respiratory pressures higher than children. There was a weak correlation between FEV1 and MIP (r = 0.247) and moderate between FEV1 and MEP (r = 0.385) of asthma patients, however, the MEP was higher in adolescents with more severe disease. Maximal respiratory pressures were not affected by the nutritional condition of individuals evaluated. Conclusion: The incidence of asthma do not determinate significant alterations in respiratory muscle strength in children and adolescents, regardless of gender. However, the severity of the disease may be associated with an increase in expiratory muscle strength in adolescents with asthma probably by the exacerbated recruitment to the fibers of these muscles are often subjected during periods of crisis is higher in males, which may be associated with greater muscle area common in boys.