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      Posicionamento corporal alterando a força muscular respiratória e o grau de obstrução em crianças asmáticas Translated title: Changes in postural position altering the respiratory muscle strength and level of obstruction in asthmatic children

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          Abstract

          INTRODUÇÃO: A asma é uma desordem inflamatória crônica que, em casos graves, altera o fluxo aéreo, mesmo no período intercrise. OBJETIVO: Verificar, em crianças asmáticas, a influência das posturas sentada ereta e sentada inclinada para frente sobre o efeito da nebulização medicamentosa, avaliando as forças inspiratória e expiratória máximas (PI máx e PE máx) e o pico de fluxo expiratório (PFE). MÉTODO: 57 crianças, na faixa etária de 6 a 12 anos, foram distribuídas em três grupos: Grupo I, com crianças na postura sentada ereta e sentada inclinada para frente; Grupo II, com crianças na postura sentada ereta antes e após a nebulização; e Grupo III, com crianças na postura sentada inclinada para frente antes e após a nebulização. As crianças foram avaliadas três vezes nas medidas analisadas. Para comparação, foi utilizado o teste t de student (pareado) RESULTADOS: A PI máx, a PE máx e o PFE foram maiores na posição sentada inclinada para frente, com p = 0,003, p = 0,006 e p = 0,000, respectivamente. Após a nebulização, o Grupo II apresentou aumentos de 44,16% na PI máx, 36,02% no PEF e 34,88% na PE máx. Após a nebulização, o Grupo III apresentou elevação de 69,46% na PI máx, 60,87% na PE máx e 52,05% no PFE. Comparados os grupos II e III, os ganhos são maiores no Grupo III, com (p < 0,05) para as medidas do PFE e da PE máx. CONCLUSÃO: A postura sentada inclinada para frente oferece maior vantagem mecânica para a musculatura expiratória, favorecendo a redução da obstrução, por evidenciar aumentos na PE máx e no PFE.

          Translated abstract

          INTRODUCTION: Asthma is a chronic inflammatory disorder which in severe cases changes the air flow, even in the period between episodes. OBJECTIVE: To evaluate, in asthmatic children under the effect of nebulized drug, the influence of upright sitting and leaning forward sitting postures, by assessing the intensity of the inspiratory and expiratory pressures (MIP and MEP) and peak expiratory flow (PEF). METHODS: 57 children aged 6-12 years were divided in three groups: In Group I, both postures, upright sitting and leaning forward sitting, were assessed without using nebulized drug; in Group II, only the upright sitting posture was assessed before and after nebulization; in Group III, only the leaning forward sitting posture was assessed before and after nebulization. The measures were repeated by assessing these children three times in a single session. A student t-test (pared) was used for comparisons. RESULTS: MIP, MEP and PEF were higher in the leaning forward position indicating respective p values of p = 0.003, p = 0.006 and p = 0.000. After nebulization, the Group II demonstrated an increase of 44.16% in MIP, 36.02% in PEF and 34.88% in MEP. After nebulization, the Group III showed a gain of 69.46% in MIP, 60.87 in MEP and 52.05% in PEF. The difference between groups II and III were significant (p < 0.05) for levels of PEF and MEP, indicating that the Group III showed better performance during these tests. CONCLUSION: It can be suggested that the leaning forward sitting posture provided an increased mechanical advantage for expiratory muscles, favoring the airflow during expiration and reducing the obstruction as evidenced by MEP and PEF increase.

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          Most cited references34

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          International Study of Asthma and Allergies in Childhood (ISAAC): rationale and methods

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            International study of asthma and allergies in childhood (ISAAC): rationale and methods

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              International Study of Asthma and Allergies in Childhood (ISAAC): rationale and methods

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                fm
                Fisioterapia em Movimento
                Fisioter. mov.
                Pontifícia Universidade Católica do Paraná (Curitiba )
                1980-5918
                September 2012
                : 25
                : 3
                : 533-540
                Affiliations
                [1 ] Universidade Federal de Pernambuco Brazil
                Article
                S0103-51502012000300009
                10.1590/S0103-51502012000300009
                079807e8-5b00-42cd-a5d4-8c67212ccef2

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0103-5150&lng=en
                Categories
                ORTHOPEDICS
                REHABILITATION

                Orthopedics,Physiotherapy
                Asthma,Respiratory muscle strength,Body position,Asma,Força muscular respiratória,Posicionamento corporal

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