Chest wall volumes during inspiratory loaded breathing in COPD patients
- Coutinho Myrrha, Mariana Alves
- Vieira, Danielle Soares Rocha
- Moraes, Karoline Simões
- Lage, Susan Martins
- Parreira, Verônica Franco
- Britto, Raquel Rodrigues
DOIAbstract
AbstractChest wall volumes and breathing patterns of 13 male COPD patients were evaluated at rest and during inspiratory loaded breathing (ILB). The sternocleidomastoid (SMM) and abdominal muscle activity was also evaluated. The main compartment responsible for the tidal volume at rest and during ILB was the abdomen. During ILB patients exhibited, in addition to increases in the ratio of inspiratory time to total time of the respiratory cycle and minute ventilation, increases (p<0.05) in the chest wall tidal volume by an increase in abdomen tidal volume as a result of improvement of end chest wall inspiratory volume without changing on end chest wall expiratory volume. The SMM and abdominal muscle activity increased 63.84% and 1.94% during ...
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