Children from 7 to 12 years old with asthma diagnose will be included. Children in the intervention group will perform 6 sessions (twice a week) of treatment with the Buteyko Method. Children assigned to the control group will receive, along with their parents, educational interventions in relation to asthma. The investigators will assess quality of life by the PAQLQ (Paediatric Asthma Quality of Life Questionnaire), pulmonary function (spirometry) and the six-minute walk test. Vital signs, pulmonary auscultation and oxygen peripheral saturation will also be assessed during the tests. In addition, information will be collected on the numbers of hospitalizations, occurence of absence in school due to exacerbation of the disease, asthma symptoms and Beta2-agonists usage .
