Atividade eletrica dos musculos reto do abdome e obliquo externo na ação postural e respiratoria de individuos normais e portadores de distrofia muscular de Duchenne

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

The Progressive Muscular Dystrophy of Duchenne s (DMD) is a genetic disease and it is characterized for the gradual degeneration of the skeletal musculature and leads to deterioration of pulmonary and postural function and, also cause inabilities to the patients develop its activities of the daily life, having a necessity constant of improvement of the physical evaluation the musculature of these individuals. The purpose of this study was to evaluate, bilaterally, the electrical activity (E A) of the Right Rectus Abdominis (RAD) and (RAE) and, Right Obliqus Externus Abdominis (REO) and Left (LEO) muscles and, the maximum Expiratory Pressure (PEmáx.). The electric activity (EA) of the muscles was measured in a group of 4 carrying individuals with DMD (DMDG) and 4 individuals composed a controlled group (CG). All individuals was of the male sex with age between 11 and 13 years old (12,5+ 0,7 years). Using a Signal Conditioner Module, Digital Analogical Converser, Data Acquisition Program and simple differential active surface electrodes (Lynx Elect. Ltda.), the electromyography signal was colleted and quantified using the Root Mean Square (RMS), expressed in microvolts. The electrodes had been placed on the central part of the belly of the muscles. Each individual carried through a sequence of movements consisted of: Normal Breath (NB), Forced Expiration (FE), Right Rotation of the trunk (RR) Right Rotation with Forced Expiration (RR+FE), Left Rotation of the trunk (LR) and Left Rotation of the trunk with Forced Expiration (LR+FE). These movements were repeated in the lying positions in Decubitus Dorsal (DD) and Seated the 90°. (SE). The results was statistically analyzed through the ANOV A for repeated samples, evidenced greater electrical activity (EA) in the muscles of the CG than DMDG; greater EA in position DD than SE; down EA in the NB movement that in the too much movements when the individuals were in position DD and greater EA in all the movements that involved FE in the position SE. Also it was detected a greater PEmáx in the CG than in the DMDG and that REO and LEO muscles presented greater EA than RAR and RAL muscles in the CG. In the DMDG, the LEO muscle presented greater EA than the too much muscles. These results in allow them to conclude that the EA and the PEmáx of the DMDG was down than of the CG, and, that the body positions and different types of the movements were interfered in the EA of the studied muscles, in different groups (CG and the DMDG)

ASSUNTO(S)

musculos respiratorios

ACESSO AO ARTIGO

Documentos Relacionados